The following summarizes indication-specific evidence considerations and practical guidance drawn from randomized trials, systematic reviews, and guideline statements (not formal coverage rules):
Plantar Fasciitis (chronic/refractory): Randomized trials and meta-analyses report heterogeneous results: some RCTs and pooled analyses (e.g., Sun et al., Gollwitzer et al., Lai et al.) show benefit of focused ESWT or ESWT versus comparator in chronic plantar fasciitis, while other trials find no additive benefit versus usual care; ESWT is not supported as first-line therapy for acute plantar fasciitis and many authors suggest use only for chronic or refractory cases with standardized protocols and documentation.
Evidence limited by small samples, heterogeneity of devices/protocols, and inconsistent long-term data.
Delayed or Nonunion Fractures: Systematic reviews and cohort studies report variable union rates after ESWT (reported range ~41%–100% across studies; Willems et al. reported 86% for delayed-unions and 73% for nonunions) and one RCT (Cacchio et al.) found healing comparable to surgery for long-bone hypertrophic nonunions; overall evidence is promising but heterogeneous and high-quality RCTs are needed before routine coverage can be recommended.
Heterogeneity in fracture types, energy settings, and endpoints limits firm conclusions.
Lateral Epicondylitis (Tennis Elbow): Randomized trials and meta-analyses provide inconsistent findings: pooled analyses (Yao et al., Liu et al.) report some reductions in pain and potential benefit for grip strength, while other RCTs (e.g., Capan et al.) found radial ESWT no more effective than sham at 1–3 months; heterogeneity in modality (radial vs focused), protocols, and study quality limit definitive conclusions.
Benefit may depend on device type, symptom duration, and protocol; effects may not persist beyond ~24 weeks in some analyses.
Greater Trochanteric Pain Syndrome (GTPS): Systematic reviews and RCTs report insufficient or inconclusive evidence: some trials show short-term improvements but pooled analyses (Harding et al., Ramon et al.) conclude no clear sustained benefit over control; additional robust RCTs with standardized protocols are needed.
Current evidence rated moderate to low quality with methodological heterogeneity.
Wounds including Diabetic Foot Ulcer (DFU): Systematic reviews and device assessments (Hitchman 2023, Huang 2020, ECRI/dermaPACE, Zhang 2018) suggest ESWT may increase healing rates and shorten time to healing for DFUs and some chronic soft tissue wounds, with dermaPACE data showing improved DFU healing at 24 weeks; however, certainty is limited by small, heterogeneous trials and low-to-moderate quality evidence, requiring further rigorous studies before broad adoption.
Promising but low certainty—case selection and optimal dosing remain uncertain.
Indications with No or Insufficient Evidence: No clinical studies were identified for hammer toe, tenosynovitis of the foot or ankle, and tibialis tendonitis; these indications lack supporting clinical evidence.
Lack of evidence implies inability to demonstrate clinical benefit.