ArticleCurrent oncology (Toronto, Ont.)2026
Ablation-First Balloon-Assisted Acetabuloplasty for Painful Acetabular Metastases: Clinical Outcomes and Mechanical Rationale.
Article in Current oncology (Toronto, Ont.), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo evaluate the safety, technical feasibility, and clinical outcomes of a strict two-step protocol-CT/fluoroscopic-guided thermal ablation followed by Balloon-Assisted Acetabuloplasty (BAA)-for the treatment of painful acetabular metastases, utilized as an immediate mechanical stabilization bridge prior to radiotherapy. MATERIALS AND
methodsA retrospective study was conducted on 16 consecutive patients treated for severe mechanical pain (VAS ≥ 6) and impaired mobility due to osteolytic acetabular metastases. The physiological rationale mandated a strict procedural sequence: (1) preliminary thermal devitalization using radiofrequency or microwave ablation to reduce tumor pressure and vascularity, followed subsequently by (2) balloon-assisted cavity compaction and polymethylmethacrylate (PMMA) cement injection. Clinical outcomes included VAS for pain and the Functional Mobility Scale (FMS) assessed before treatment and up to 6 months post-procedure.
resultsTechnical success was 100% with a mean procedural time of 58 ± 14 min. No major complications occurred. At a mean follow-up of 8.2 months, all 16 patients were alive. The procedure yielded dramatic acute pain relief: mean baseline VAS dropped from 7.4 ± 0.8 to 2.3 ± 1.0 at 1 week, and to 0.9 ± 0.9 at 1 month (
conclusionThe strict "ablation-first" BAA strategy is safe and highly effective. It abolishes load-bearing pain and restores biomechanical stability immediately, allowing previously immobilized patients to rapidly regain independent ambulation and seamlessly transition to necessary consolidative radiotherapy.
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