Radiofrequency Neurotomy as a Treatment Option for Non-surgical Chronic Hip Pain

Introduction: From 10% to 15% of patients with hip arthrosis suffer from comorbidities which contraindicate THA as a therapeutic option. Radiofrequency offers a promising and minimally invasive alternative for effective pain management and functional improvement in non-surgical patients.

Objectives: To evaluate the effectiveness of radiofrequency (RF) rhizotomy for managing chronic pain in patients with hip osteoarthritis and to describe the surgical technique.

Study Design: Experimental study with a 12-month prospective follow-up.

Setting and Duration of the Study: Orthopaedic pain management unit of the Interventional Pain clinic over a 12-month period.

Methodology: A total of 22 patients with chronic hip pain due to osteoarthritis were included in an experimental study conducted over a 12-month period. Patients were divided into two groups: the first treated with RF (n=11) and the second with conservative management (n=11). Function and pain were assessed using the WOMAC score and VAS scale at 0, 3, 6, 9, and 12 months. Data were analyzed using ANOVA to determine RF effectiveness.

Results: RF rhizotomy improved by 65% in WOMAC scores at 12 months (51.5 points). ANOVA statistics revealed significant differences over follow-up intervals at 0, 3, 6, 9 and 12 months (F = 127.0, p < 0.0001), indicating treatment effects. The greatest reduction was observed at 3 months and sustained throughout the follow-up year. Patients treated with RF reported lower analgesic use, and no adverse effects were noted.

Conclusion: Radiofrequency rhizotomy is a safe and effective alternative for managing chronic hip pain in non-candidate patients for THA, offering sustained functional improvement and a low complication rate. Prospective studies are needed to assess its long-term efficacy.