Outcomes after fluoroscopy-guided iliopsoas bursa injection for suspected iliopsoas tendinopathy

Objectives To report patient outcomes up to 1 month after fluoroscopy-guided iliopsoas bursa injection for suspected iliopsoas tendinopathy. Methods Thirty-nine consecutive patients (mean age 45 years; range 15-77) who underwent fluoroscopy-guided therapeutic iliopsoas bursa injection using an anterolateral approach and who returned an outcomes questionnaire were prospectively included. The Patients' Global Impression of Change (PGIC) scale was recorded 1 day, 1 week, and 1 month after the injection (primary outcome measure). Patients' subjective pain level data were collected prior to the injection (baseline) using a numeric rating scale (NRS; 0 = no pain; 10 = maximum pain). NRS scores were completed 15 min, 1 day, 1 week, and 1 month post-injection and compared to baseline. Results Forty-nine per cent of patients reported clinically relevant 'improvement' (PGIC) 1 month post-injection. Mean NRS score prior to injection was 5.9 +/- 2.1. Mean NRS scores after 15 min (3.6 +/- 2.7), 1 day (4.4 +/- 2.7), 1 week (3.4 +/- 1.9), and 1 month (3.5 +/- 2.5) were statistically significantly lower (p <= 0.001) compared to baseline. Reduction of NRS >= 50 % after 15min was achieved in 49%(56% of those unimproved at 1 month). Conclusions Fluoroscopy-guided iliopsoas bursa injection leads to a relevant 'improvement' at 1 month or significant pain reduction after 15 min in most patients.