ModifiedUnitedHealthcarePolicy CS364NJ.C

Minimally Invasive Spine Surgery Procedures (for New Jersey Only)

This policy governs coverage determinations for selected minimally invasive spinal procedures and approaches for members in New Jersey. It identifies which procedures are considered unproven/not medically necessary and provides definitions, coding references, and supporting evidence summaries.

Policy Summary

PayerUnitedHealthcare

PolicyMinimally Invasive Spine Surgery Procedures (for New Jersey Only)

Policy CodePolicy CS364NJ.C

Change TypeMaterial coverage change: NMN added for APLD and PELD

Effective DateApr 1, 2025

Next Review DateN/A

Key ActionObtain prior authorization and document failed conservative therapy, imaging, and clinical indication before requesting coverage for listed minimally invasive spine procedures.

SourceLink

POLICY UPDATE CHANGES

Coverage Rationale Added language to clarify Automated Percutaneous Lumbar Discectomy (APLD) and Percutaneous Endoscopic Lumbar Discectomy (PELD) are unproven and not medically necessary for intervertebral disc decompression

Updated definition of "Interbody Fusion"

Updated Clinical Evidence and References sections to reflect the most current information

Archived previous policy version CS364NJ.B

8+procedures listed as unproven / not medically necessary

20+document pages

multiplesystematic reviews / guideline citations

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

patients in AxiaLIF surveillance

04/01/2025policy effective date

Coverage Criteria and Rationale

Procedures deemed unproven / not medically necessary

The following procedures are considered unproven and not medically necessary due to insufficient evidence of efficacy:

Not medically necessary procedures: Percutaneous Image-Guided Lumbar Decompression (PILD); Axial Lumbar Interbody Fusion (AxiaLIF); Percutaneous sacral augmentation (Sacroplasty) with or without a balloon or bone cement; Percutaneous Endoscopic Lumbar Discectomy (PELD) for intervertebral disc decompression; Automated Percutaneous Lumbar Discectomy (APLD) for intervertebral disc decompression; Minimally Invasive Lumbar Decompression (MILD); Transforaminal lumbar Interbody Fusion (TLIF) which utilizes only endoscopy visualization (endoscopy-only TLIF); Laparoscopic Anterior Lumbar Interbody Fusion (LALIF)

Listed procedures are unproven/not medically necessary per policy.

Coverage evidence summary

Summary of evidence-based coverage considerations

MILD evidence: MILD has randomized and nonrandomized studies showing improvement in pain and function up to 2 years; durability beyond 2 years is uncertain and additional high-quality long-term data are needed.

References: Staats RCT and HTA findings; limitations include small number of RCTs and limited long-term follow-up.

AxiaLIF evidence: Case series and surveillance data report pain reduction and fusion in select cohorts but data show variable fusion rates and reports of complications; comparative data are limited and retrospective, limiting conclusions on relative effectiveness.

Limited by retrospective designs and nonrandomized comparisons.

PLDD/PILD evidence: Evidence for percutaneous image-guided lumbar decompression (PLDD/PILD) is limited and of low quality; some trials report noninferiority but higher reoperation rates and overall evidence is insufficient to determine net health benefit.

Higher reoperation rates and inconsistent long-term outcomes (e.g., Brouwer RCT).

Covered with criteria (conditional)

Coverage stance is dependent on evidence strength and patient selection; procedures are generally considered when conservative therapy has failed and patient selection matches populations studied.

General coverage conditions for minimally invasive percutaneous discectomy/endoscopic procedures: Procedure may be considered when: (1) patient has symptomatic lumbar disc herniation or radicular pain corresponding to imaging; (2) symptoms persist despite an adequate trial of conservative therapy; (3) patient selection matches indications used in the literature (e.g., contained herniation, radicular symptoms); and (4) provider documents expected benefit over conservative care.adequate trial of conservative therapy (documented)

Evidence quality is low; additional RCT data needed

Risk/recurrence information

Comparative outcomes and risks relevant to coverage.

Recurrence/reoperation considerations: PELD may have similar overall success rates to other surgical interventions but has been associated with higher recurrent disc herniation rates in meta-analysis (7.57% vs 4.38%).

Consider this when counseling patients and in selection for percutaneous endoscopic approaches.

Sacroplasty — conditional

Sacroplasty evidence summary and appropriate use context.

Sacroplasty candidate criteria: Consider sacroplasty for sacral insufficiency fractures (SIF) in patients with severe sacral pain refractory to conservative management and imaging-confirmed SIF or focal sacral lesion; require documented trial and failure or intolerance of conservative nonsurgical measures prior to consideration.failed conservative therapy (documented)

Evidence rated poor; available studies are nonrandomized and uncontrolled; benefit suggested in patients refractory to conservative care.

Endoscopic lumbar fusion (PE-TLIF/Endo-LIF)

Evidence summary relevant to coverage decisions

Evidence requirements for percutaneous/endoscopic lumbar fusion: Published evidence for percutaneous/endoscopic lumbar fusion (PE-TLIF/Endo-LIF/Endo-TLIF variants) is limited largely to small case series and nonrandomized studies; randomized trials comparing these approaches to open or established MIS fusion techniques are lacking.

Higher-quality comparative evidence (RCTs or well-designed prospective comparative studies with sufficient sample size and adequate follow-up) is needed to establish safety and efficacy.

Percutaneous endoscopic discectomy (PETD/PTED)

Evidence summary relevant to coverage of percutaneous endoscopic discectomy (PETD/PTED) and comparison to alternative procedures

Comparative outcomes for PETD/PTED: Meta-analyses and RCTs report PETD/PTED have comparable clinical efficacy (VAS, ODI, JOA) to PEID, MED, and MD in many studies; distinctions include longer fluoroscopy and operative time for PETD versus PEID and reports of shorter hospital stay and lower early postoperative back pain for PTED versus MED in some analyses. Overall evidence is limited by small sample sizes, heterogeneity, and predominance of observational studies.

Most comparisons limited by heterogeneity and short follow-up; surgeon experience may influence outcomes.

TELF and endoscopic TLIF variants

Outcomes and limitations for endoscopic foraminotomy and TLIF variants

TELF and biportal/endoscopic TLIF evidence: Systematic reviews report a high proportion of clinical improvement after transforaminal endoscopic lumbar foraminotomy (TELF; pooled improvement ~85%) and that biportal endoscopic TLIF or endo‑TLIF variants demonstrate comparable 1‑year clinical and radiologic outcomes and similar fusion rates to PLIF and MIS‑TLIF in observational series, with possible faster recovery; however, evidence quality is low and long‑term randomized data are lacking.

Consider limited follow-up duration, heterogeneity, and potential bias in observational series.

Coverage rationale and evidence summary

Selected coverage-relevant findings and policy actions from document:

Not medically necessary procedures: Automated Percutaneous Lumbar Discectomy (APLD) and Percutaneous Endoscopic Lumbar Discectomy (PELD) are considered unproven and not medically necessary for intervertebral disc decompression.

Policy Summary of Changes states NMN status for APLD and PELD.

Evidence summaries for TLIF and endoscopic TLIF: Biportal endoscopic TLIF shows comparable 1‑year clinical and radiologic outcomes and similar fusion rates to PLIF and MIS‑TLIF in retrospective/observational studies, with possible faster recovery; long‑term outcomes remain insufficient and randomized trials are needed.

Multiple retrospective studies and reviews cited; guideline bodies offer no technique‑specific recommendation.

Guideline context: AANS/CNS and NASS guidelines do not provide specific recommendations favoring endoscopic or minimally invasive TLIF over open TLIF and call for randomized controlled trials comparing MIS versus open techniques.

Supports conservative stance where evidence is inconclusive.

The listing of a CPT/HCPCS code in this policy is provided for reference only and does not imply that the service described by the code is a covered or non‑covered health service. Benefit coverage is determined by federal, state, contractual requirements and applicable law; inclusion of a code here does not guarantee reimbursement or claim payment. Providers should verify plan‑specific coverage and prior authorization requirements before performing services coded in this policy.

Lumbar fusion is not recommended for isolated lumbar stenosis without deformity or instability; guideline statements indicate fusion does not improve outcomes in patients with isolated stenosis. In general, surgical decompression or fusion should be considered only after an adequate trial of conservative therapy and when patient selection matches populations evaluated in the literature. For minimally invasive fusion approaches, comparative evidence versus standard open fusion is limited and should be considered when evaluating surgical options.

Percutaneous nucleoplasty and similar percutaneous disc decompression techniques (including percutaneous cervical nucleoplasty and lumbar percutaneous disc nucleoplasty) have observational data showing substantial reoperation rates. The available series suggest these procedures should not be considered replacements for conventional open discectomy when open surgery is indicated, given higher subsequent surgery rates and limited comparative evidence.

Percutaneous endoscopic approaches to lumbar interbody fusion (endoscopic or percutaneous fusion variants) are supported primarily by small case series and nonrandomized reports. There are no well‑designed randomized trials directly comparing percutaneous/endoscopic fusion approaches to conventional open or established MIS fusion, and therefore safety and comparative effectiveness relative to standard fusion techniques cannot be concluded.

This policy explicitly identifies Automated Percutaneous Lumbar Discectomy (APLD) and Percutaneous Endoscopic Lumbar Discectomy (PELD) for intervertebral disc decompression as unproven and not medically necessary. The policy change clarifies that these endoscopic and automated percutaneous discectomy techniques lack sufficient evidence of net health benefit to support routine coverage for disc decompression.

The policy scope includes numerous named procedures and commercial techniques that are evaluated for coverage, such as Percutaneous Image‑Guided Lumbar Decompression (PILD), Axial Lumbar Interbody Fusion (AxiaLIF), percutaneous sacral augmentation (sacroplasty), Automated Percutaneous Lumbar Discectomy (APLD), Percutaneous Endoscopic Lumbar Discectomy (PELD), Minimally Invasive Lumbar Decompression (MILD), endoscopy‑only TLIF variants, and Laparoscopic Anterior Lumbar Interbody Fusion (LALIF). Applicable CPT/HCPCS codes are provided for reference but do not by themselves determine coverage.

Percutaneous lumbar disc decompression techniques such as PLDD/DeKompressor have an evidence base that is limited and of low quality. Randomized trials and cohort studies report mixed outcomes, including higher reoperation rates in some PLDD cohorts, and the literature is insufficient to establish that PLDD is equivalent or superior to open decompression for patients who are surgical candidates.

Several percutaneous and minimally invasive techniques have been offered as primary replacements for conventional open discectomy (for example, PLDD, percutaneous nucleoplasty/PCN/PDN, and other needle‑based decompression methods). Available observational studies report appreciable rates of subsequent open surgery and other adverse outcomes; therefore these procedures lack high‑quality comparative evidence to support their routine use as primary replacements for open discectomy.

When the published evidence for a device or procedure consists only of small, single‑center case series or studies at high risk of bias, the quality of evidence is considered low. The policy treats such low‑quality or mixed evidence as insufficient to establish medical necessity, and these procedures or devices may be considered not medically necessary until validated by well‑designed randomized controlled trials with adequate follow‑up.

As stated in the policy updates, Automated Percutaneous Lumbar Discectomy (APLD) and Percutaneous Endoscopic Lumbar Discectomy (PELD) are unproven and not medically necessary for intervertebral disc decompression. This reiterates the policy's operational stance that these specific techniques do not have sufficient evidence to support coverage for disc decompression.

Applicable Procedure and Billing Codes

Applicable CPT/HCPCS codes (selection)mixed

0200T	Percutaneous sacral augmentation (sacroplasty) (unilateral injection[s]), including the use of a balloon or mechanical device, when used; includes imaging guidance and bone biopsy, when performed.
0201T	Percutaneous sacral augmentation (sacroplasty) (bilateral injections), including the use of a balloon or mechanical device, when used; includes imaging guidance and bone biopsy, when performed.
0275T	Percutaneous laminotomy/laminectomy (interlaminar approach) for decompression of neural elements, (with or without ligamentous resection; discectomy, facetectomy and/or foraminotomy), any method; under indirect image guidance, single or multiple levels, unilateral or bilateral; lumbar.
22586	Arthrodesis, pre-sacral interbody technique, including disc space preparation; discectomy, with posterior instrumentation, with image guidance, includes bone when performed, L5-S1 interspace graft.
22630	Arthrodesis, posterior interbody technique, including laminectomy and/or discectomy to prepare interspace (other than for decompression), single interspace, lumbar.

Additional applicable codesmixed

22899	Unlisted procedure, spine.
62287	Decompression procedure, percutaneous; of nucleus pulposus of intervertebral disc, any method utilizing needle-based technique to remove disc material under fluoroscopic imaging; lumbar (single or multiple levels).
62380	Endoscopic decompression of spinal cord, nerve root(s), including laminotomy, partial facetectomy, foraminotomy, discectomy and/or excision of herniated intervertebral disc, 1 interspace, lumbar.
G0276	Blinded procedure for lumbar stenosis, percutaneous image-guided lumbar decompression (PILD) or placebo-control, performed in an approved coverage with evidence development (CED) clinical trial.

Procedures discussed (no explicit codes listed in this document section)mixed

No codes listed

Provider Requirements, Prior Authorization, and Documentation

Prior Authorization

Prior authorization may be required

Prior authorization may be required for listed minimally invasive spine (MIS) procedure codes. Providers should verify prior authorization (PA) requirements with UnitedHealthcare and submit PA requests when applicable before scheduling procedures.

PA may be required for MIS codes listed in the policy (e.g., 0200T, 0201T, 0275T, 22586, 22630).
Listing of a code in this policy does not guarantee coverage; check federal, state, and contractual requirements.

Prior Authorization

Prior authorization recommended for select percutaneous/endoscopic procedures

Prior authorization is recommended for specific percutaneous and endoscopic procedures where evidence is limited or evolving. Obtain PA documentation that justifies medical necessity and prior conservative management when applicable.

PA recommended for PILD/PLDD and other percutaneous decompression procedures.
PA recommended for percutaneous endoscopic fusion procedures (e.g., PE‑TLIF, Endo‑TLIF, Endo‑LIF) due to limited comparative trials.

Clinical Background and Scope

Acute low back pain and radiculopathy frequently improve with conservative care; surgery is generally considered when neuropathic symptoms persist despite an adequate trial of nonoperative therapy. Minimally invasive approaches aim to reduce tissue disruption and recovery times, but many techniques lack high‑quality randomized evidence demonstrating comparable or superior outcomes to standard open procedures. As a result, appropriate patient selection, documentation of failed conservative management, and careful consideration of the strength of comparative evidence are central to coverage decisions.

Definitions of Procedures and Terms

Automated Percutaneous Lumbar Discectomy (APLD)

DefinitionAutomated Percutaneous Lumbar Discectomy (APLD): a minimally invasive percutaneous technique in which a thin, blunt-tipped suction and cutting probe is inserted into the center of the herniated lumbar disc under fluoroscopic guidance to remove degenerated central disc material, intended for small contained disc protrusions after failed conservative therapy.

Access & visualizationProbe placed through a small skin incision and positioned into the disc under fluoroscopy; procedure does not require open visualization.

Intended indicationTargeted for relatively small contained lumbar disc protrusions without fragmentation or complete extrusion in patients who have failed conservative management.

MechanismBlunt suction and cutting action to remove nucleus material aiming to reduce nerve-root compression while minimizing soft-tissue disruption.

Axial Lumbar Interbody Fusion (AxiaLIF)

Policy Revision History

2025-04-01policy_revisionLatest

Coverage rationale updated to specify Automated Percutaneous Lumbar Discectomy (APLD) and Percutaneous Endoscopic Lumbar Discectomy (PELD) are unproven and not medically necessary for intervertebral disc decompression; definitions and clinical evidence/references were also updated; previous version CS364NJ.B archived.

Policy Summary

PayerUnitedHealthcare

PolicyMinimally Invasive Spine Surgery Procedures (for New Jersey Only)

Policy CodePolicy CS364NJ.C

Change TypeMaterial coverage change: NMN added for APLD and PELD

Effective DateApr 1, 2025

Next Review DateN/A

Key ActionObtain prior authorization and document failed conservative therapy, imaging, and clinical indication before requesting coverage for listed minimally invasive spine procedures.

SourceLink

On This Page

Denial Risk

Denial risk for unproven procedures

Procedures categorized as unproven or not medically necessary may be denied. Claims for these procedures should be supported by documentation of medical necessity and are at risk for denial if they fall into the unproven/NMN list.

Unproven / Not Medically Necessary examples: PILD, AxiaLIFe, sacroplasty, PELD, APLD, MILD (when not meeting criteria), endoscopic-only TLIF/LALIF.
Denial risk increases when documentation does not demonstrate indications, prior conservative care, or adherence to applicable criteria.

Denial Risk

Evidence insufficiency risk

Insufficient or low-quality evidence may lead to PA denial or claim denial. When the literature lacks high-quality randomized trials, long-term outcomes, or comparative studies, payers may determine the procedure is not supported.

Absence of high-quality trials or long-term follow-up for procedures (e.g., PLDD, PILD, many endoscopic techniques) may prompt denial.
Systematic reviews and technology assessments noting limited or mixed evidence increase scrutiny.

Denial Risk

Low-quality or mixed evidence may trigger denial

Low-quality, mixed, or high-risk-of-bias evidence may trigger denial or require additional documentation. Small sample sizes, retrospective designs, and lack of comparative groups weaken support for coverage.

Studies limited to case series or small nonrandomized cohorts (common for percutaneous endoscopic fusion) are considered low quality.
High reoperation rates or inconsistent outcomes in observational studies (e.g., PLDD reports) should be documented and justified if seeking coverage.

Billing Rule

Coding and documentation note

Providers must code and document procedures, indications, prior treatments, and relevant imaging. Listing of a code in this policy is for reference only and does not guarantee coverage or payment.

Document procedure CPT/HCPCS codes and clinical indication clearly on the PA and claim.
Inclusion of a code in this policy does not imply coverage; verify contract and state/federal mandates before billing.

Documentation Required

Required clinical outcome documentation

When requesting authorization or submitting claims, include clinical outcome measures and follow-up data where applicable to support medical necessity and expected benefit.

Report baseline and follow-up outcome measures used in studies (e.g., VAS, ODI, JOA) and timing of assessments.
Provide imaging and fusion assessment results (e.g., radiographs, fusion criteria) when fusion is the therapeutic intent.

Documentation Required

Sacroplasty documentation requirements

For percutaneous sacroplasty requests, document failure of conservative management and provide imaging confirming sacral insufficiency fracture or focal sacral lesion. Include prior treatment details and objective pain/function measures.

Document trial and failure of conservative measures (e.g., bed rest, analgesics, partial weight bearing, orthosis) before sacroplasty.
Provide imaging demonstrating SIF or symptomatic sacral lesion and pre/post VAS or functional assessments.
Note: evidence is limited; PA may be required and claims may be subject to denial if documentation is insufficient.

Documentation Required

Required outcome documentation for fusion procedures

For fusion procedures (including endoscopic/percutaneous fusion), provide detailed outcome and follow-up documentation to support claims of fusion and clinical benefit.

Include follow-up intervals and outcome measures (e.g., VAS, ODI, JOA) and imaging evidence of fusion (radiographs, CT) with dates.
Document adverse events, reoperations, and rationale for choosing percutaneous/endoscopic approach over established techniques.

Documentation Required

Documentation and verification

Verify state, federal, and contractual requirements and be prepared to provide requested documentation. UnitedHealthcare may use third‑party criteria (e.g., InterQual) to assist in benefit administration.

Confirm any state-mandated coverage requirements or contract-specific rules that supersede policy language.
Be prepared to submit clinical notes, imaging, prior conservative treatment records, and PA justification on request.

Step Therapy

Conservative therapy prerequisite for surgical decompression

Conservative therapy is generally expected before considering surgical decompression or novel MIS procedures. Document duration and type of conservative care and the neuropathic nature of symptoms when applicable.

Surgical decompression is typically considered after several months of unsuccessful conservative care for neuropathic radiculopathy.
Document trials of nonoperative care (physical therapy, medications, injections) and duration to support medical necessity for surgery.

Step Therapy

Conservative therapy before MILD

For Minimally Invasive Lumbar Decompression (MILD), document an adequate trial of conservative therapy prior to the procedure; evidence supports benefit over baseline but long-term durability and comparative effectiveness remain uncertain.

Document prior conservative treatments and duration before MILD.
Include outcome measures (e.g., ODI, pain scales) demonstrating failure of conservative care.

Step Therapy

Conservative therapy required before sacroplasty

Document trial/failure of conservative measures before sacroplasty is performed. Sacroplasty is supported mainly in patients who could not tolerate or failed conservative nonsurgical therapy; evidence is limited and documentation should reflect that.

Conservative measures include bed rest, analgesics, partial weight bearing, orthosis, and documented failure or intolerance.
When conservative care was not attempted, provide justification and supporting clinical details with PA request.

DefinitionAxial Lumbar Interbody Fusion (AxiaLIF): a presacral / trans-sacral minimally invasive approach to L5–S1 (and optionally L4–S1) interbody fusion where the surgeon enters via a small incision adjacent to the coccyx to prepare the disc space, place bone graft and instrumentation along the spine's long axis.

Approach detailsAccess is via a para‑coccygeal presacral corridor (next to the tailbone) rather than anterior, posterior, or lateral approaches; supplemental posterior screws may be placed through separate small incisions.

Outcomes & safety notesCase series report pain reduction and fusion with a reported complete fusion rate of 65% in a small series; large post‑marketing surveillance (9,152 patients) reported an overall complication rate of ~1.3% with rare serious events (e.g., bowel injury).

Percutaneous Image-Guided Lumbar Decompression (PILD)

DefinitionPercutaneous Image‑Guided Lumbar Decompression (PILD): a posterior decompression of the lumbar spine performed under indirect image guidance (e.g., fluoroscopy) without direct surgical visualization, intended to relieve stenosis or decompress disc material via a percutaneous route.

Evidence summaryEvidence includes randomized and observational studies but is insufficient to determine net health benefit compared with open decompression; trials show high risk of bias and inconsistent long‑term outcomes.

Clinical considerationsPatient selection and confirmation of failed conservative therapy are emphasized; higher reoperation rates reported in some PLDD/DeKompressor series suggest caution when used as replacement for open surgery.

Percutaneous Endoscopic Lumbar Discectomy (PELD)

DefinitionPercutaneous Endoscopic Lumbar Discectomy (PELD): a minimally invasive discectomy using percutaneous access with endoscopic visualization (transforaminal or interlaminar approaches) and specialized instruments to remove herniated disc material under fluoroscopic and endoscopic guidance.

Technique variantsMay employ laser or mechanical instruments via an endoscope with either transforaminal (PETD/PTED) or interlaminar portals; visualization is via endoscope rather than open exposure.

Outcomes & risksMeta‑analyses show comparable mid‑term clinical efficacy to other discectomy techniques but an increased recurrent herniation rate has been reported (e.g., 7.57% vs 4.38% in pooled analysis).

Sacroplasty

DefinitionSacroplasty: image‑guided percutaneous injection of bone cement (e.g., PMMA) into sacral insufficiency fractures to stabilize the sacrum and reduce pain, performed under fluoroscopic or CT guidance using percutaneous cannulas and needles.

Typical procedureUsually involves bilateral placement of thin hollow tubes or cannulas into the sacrum and injection of 2–5 mL of bone cement per side under imaging guidance.

Indications & evidenceStudies typically treated patients refractory to conservative management; evidence is limited and of poor quality, with some uncontrolled series showing pain improvement but guideline support unclear.

AxiaLIF — additional notes

Approach summaryAxiaLIF uses a presacral (trans‑sacral / transaxial) corridor to access L5–S1 with a para‑coccygeal incision to place graft and instrumentation along the spine's long axis.

Reported outcomesSmall series report substantial pain reduction and some fusion success (e.g., 65% complete fusion in one small retrospective series), but results are limited by sample size and lack of comparative data.

Safety considerationsPost‑marketing surveillance of over 9,000 patients reported an overall complication rate around 1.3%, including rare but serious events such as bowel injury and presacral hematoma.

Minimally Invasive Lumbar Decompression (MILD)

DefinitionMinimally Invasive Lumbar Decompression (MILD): a percutaneous decompression procedure using the Vertos MILD proprietary kit to remove hypertrophic ligamentum flavum and relieve central canal stenosis causing neurogenic claudication.

EvidenceRandomized and nonrandomized studies show improvement in pain and function up to 2 years; durability beyond 2 years is uncertain and further high‑quality long‑term data are needed.

Clinical roleCan be considered for select patients with central spinal stenosis and hypertrophic ligamentum flavum after trial of conservative therapies; comparative evidence versus open decompression is limited.

PLDD / PILD (DeKompressor and similar devices)

DefinitionPLDD / PILD: percutaneous image‑guided lumbar decompression or percutaneous lumbar disc decompression (examples include mechanical devices such as the DeKompressor) intended to remove nucleus material percutaneously under fluoroscopic guidance to decompress herniated discs or relieve discogenic radicular pain.

Evidence & outcomesEvidence is limited and of low quality; some RCTs demonstrate noninferiority but retrospective series report high reoperation/resurgery rates (e.g., ~26% in some cohorts), raising concerns about durability and replacement of open discectomy.

Clinical cautionUse as a primary replacement for open discectomy is discouraged without high‑quality comparative data; prior conservative therapy and careful patient selection recommended.

PLDD / PILD — definition variant and intent

Variant definitionPLDD / PILD (alternative wording): image‑guided percutaneous lumbar decompression performed posteriorly under fluoroscopic guidance without direct visualization to remove nucleus material or decompress stenosis.

Intended purposeDesigned to alleviate discogenic radicular pain or focal disc herniation via minimally invasive percutaneous nucleus removal rather than open discectomy.

Evidence limitationsAvailable studies include small RCTs and observational cohorts with inconsistent long‑term outcomes and notable reoperation rates; evidence insufficient to conclude net health benefit over open surgery.

Nucleoplasty / PDN

DefinitionNucleoplasty / Percutaneous Disc Nucleoplasty (PDN): percutaneous intradiscal procedures using coblation or radiofrequency (RF) energy (e.g., ArthroCare Spine Wand) or related techniques to ablate or remove nucleus pulposus tissue to reduce intradiscal pressure and treat contained disc herniation or discogenic low back pain.

OutcomesShort‑term satisfaction rates are often high but observational series report substantial reoperation rates (e.g., 18–20% reoperation in some PDN series) and declining long‑term satisfaction; RCTs of combined approaches suggest some short‑term benefit when paired with nerve‑root injection.

Clinical implicationShould not be considered a replacement for open discectomy where open surgery is indicated; patient selection and counseling about reoperation risk are important.

PELD / PETD / PTED (endoscopic discectomy family)

Family definitionPELD / PETD / PTED: percutaneous endoscopic lumbar discectomy (PELD) and percutaneous endoscopic transforaminal discectomy (PETD/PTED) are endoscopic discectomy techniques using small portals and endoscopic visualization (transforaminal or interlaminar) to remove herniated disc material with minimally invasive instrumentation.

Technique distinctionsPETD / PTED denote transforaminal endoscopic access; PEID denotes endoscopic interlaminar access; differences exist in fluoroscopy time, operative time, and suitability for certain levels (e.g., L5–S1).

Evidence summaryMeta‑analyses and RCTs/meta‑analyses show comparable clinical efficacy to other discectomy techniques but heterogeneity and limited high‑quality trials limit definitive conclusions; some analyses report advantages in shorter hospital stay and quicker recovery.

Percutaneous sacroplasty

DefinitionPercutaneous sacroplasty: image‑guided percutaneous injection of polymethylmethacrylate (PMMA) or other bone cement into the sacrum to stabilize sacral insufficiency fractures and reduce pain.

Procedure detailsPerformed under fluoroscopy or CT with percutaneous cannulas/needles placed into the sacral fracture site and cement volumes typically around 2–5 mL per side.

Evidence contextEvidence is limited and generally poor quality; some studies enrolled patients refractory to conservative therapy and report pain improvements, but controlled long‑term data are lacking and guideline support is unclear.

PETD / PTED (transforaminal endoscopic discectomy)

DefinitionPETD / PTED: percutaneous transforaminal endoscopic discectomy (PETD/PTED) — endoscopic approaches using a transforaminal portal to access and remove herniated lumbar disc material under endoscopic and fluoroscopic guidance.

Comparative findingsSystematic reviews report PETD/PTED may have longer fluoroscopy and operative times compared with some interlaminar endoscopic techniques but similar clinical outcomes (VAS, ODI) and complication rates in many studies.

Technique notesPETD/PTED may be favorable for certain foraminal or lateral herniations and can reduce hospital stay and blood loss compared with open approaches in some series.

TESSYS (transforaminal endoscopic spine system)

DefinitionTESSYS: Transforaminal Endoscopic Spine System — a commercial transforaminal endoscopic surgical system (Joimax, Inc.) used for percutaneous transforaminal endoscopic discectomy and foraminoplasty; evaluated in clinical evidence assessments.

Evidence noteECRI assessment (2019) found available studies low quality and at high risk of bias with mixed results, preventing definitive conclusions about comparative efficacy for TESSYS/PTED.

Clinical implicationWhile generally appearing safe in studies, the low quality and heterogeneity of evidence mean outcomes and indications remain uncertain relative to other techniques.

PE‑TLIF / Endo‑TLIF / Endo‑LIF (endoscopic fusion variants)

DefinitionPE‑TLIF / Endo‑TLIF / Endo‑LIF: percutaneous or endoscopic transforaminal lumbar interbody fusion variants that perform TLIF using percutaneous or endoscopic‑assisted approaches (including percutaneous pedicle screw fixation) intended to achieve interbody fusion with less soft‑tissue disruption than open TLIF.

Reported outcomesSystematic reviews and meta‑analyses report PE‑TLIF/Endo‑TLIF may reduce blood loss, incision size, time to ambulation, and length of stay and may provide similar fusion rates and medium‑term clinical outcomes compared with MIS‑TLIF, but studies are heterogeneous and largely nonrandomized.

Evidence limitationsMost available studies are retrospective or small prospective series with significant heterogeneity; randomized trials comparing endoscopic fusion to standard MIS or open TLIF are lacking and needed to establish comparative efficacy and long‑term fusion outcomes.

Interbody Fusion (updated definition)

NoteInterbody Fusion: definition updated in this policy; updated text resides in the full policy document (not included in this extract).

Policy actionPolicy revision (04/01/2025) included an updated definition of 'Interbody Fusion' and other supporting evidence updates.

ImplicationRefer to the full policy document for the revised, authoritative interbody fusion definition and related coverage criteria.