Education plus exercise versus corticosteroid injection use versus a wait and see approach on global outcome and pain from gluteal tendinopathy: prospective, single blinded, randomised clinical trial [教育联合运动、皮质类固醇注射与不干预方式对臀肌病患者疼痛与全身症状的作用：前瞻性单盲随机临床试验]

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BMJ 2018; 361 doi: https://doi.org/10.1136/bmj.k1662 (Published 02 May 2018)
Cite this as: BMJ 2018;361:k1662

Authors
Rebecca Mellor, Kim Bennell, Alison Grimaldi, Philippa Nicolson, Jessica Kasza, Paul Hodges, Henry Wajswelner, Bill Vicenzino

Abstract
Objective To compare the effects of a programme of load management education plus exercise, corticosteroid injection use, and no treatment on pain and global improvement in individuals with gluteal tendinopathy.

Design Prospective, three arm, single blinded, randomised clinical trial.

Setting Brisbane and Melbourne, Australia.

Participants Individuals aged 35-70 years, with lateral hip pain for more than three months, at least 4/10 on the pain numerical rating scale, and gluteal tendinopathy confirmed by clinical diagnosis and magnetic resonance imaging; and with no corticosteroid injection use in previous 12 months, current physiotherapy, total hip replacement, or neurological conditions.

Interventions A physiotherapy led education and exercise programme of 14 sessions over eight weeks (EDX; n=69), one corticosteroid injection (CSI; n=66), and a wait and see approach (WS; n=69).

Main outcomes Primary outcomes were patient reported global rating of change in hip condition (on an 11 point scale, dichotomised to success and non-success) and pain intensity in the past week (0=no pain, 10=worst pain) at eight weeks, with longer term follow-up at 52 weeks.

Results Of 204 randomised participants (including 167 women; mean age 54.8 years (standard deviation 8.8)), 189 (92.6%) completed 52 week follow-up. Success on the global rating of change was reported at eight weeks by 51/66 EDX, 38/65 CSI, and 20/68 WS participants. EDX and CSI had better global improvement scores than WS (risk difference 49.1% (95% confidence interval 34.6% to 63.5%), number needed to treat 2.0 (95% confidence interval 1.6 to 2.9); 29.2% (13.2% to 45.2%), 3.4 (2.2 to 7.6); respectively). EDX had better global improvement scores than CSI (19.9% (4.7% to 35.0%); 5.0 (2.9 to 21.1)). At eight weeks, reported pain on the numerical rating scale was mean score 1.5 (standard deviation 1.5) for EDX, 2.7 (2.4) for CSI, and 3.8 (2.0) for WS. EDX and CSI participants reported less pain than WS (mean difference −2.2 (95% confidence interval −2.89 to −1.54); −1.2 (−1.85 to −0.50); respectively), and EDX participants reported less pain than CSI (−1.04 (−1.72 to −0.37)). Success on the global rating of change was reported at 52 weeks by 51/65 EDX, 36/63 CSI, and 31/60 WS participants; EDX was better than CSI (20.4% (4.9% to 35.9%); 4.9 (2.8 to 20.6)) and WS (26.8% (11.3% to 42.3%); 3.7 (2.4 to 8.8)). Reported pain at 52 weeks was 2.1 (2.2) for EDX, 2.3 (1.9) for CSI, and 3.2 (2.6) for WS; EDX did not differ from CSI (−0.26 (−1.06 to 0.55)), but both treatments did better than WS (1.13 (−1.93 to −0.33); 0.87 (−1.68 to −0.07); respectively).

Conclusions For gluteal tendinopathy, education plus exercise and corticosteroid injection use resulted in higher rates of patient reported global improvement and lower pain intensity than no treatment at eight weeks. Education plus exercise performed better than corticosteroid injection use. At 52 week follow-up, education plus exercise led to better global improvement than corticosteroid injection use, but no difference in pain intensity. These results support EDX as an effective management approach for gluteal tendinopathy.

Trial registration Prospectively registered at the Australian New Zealand Clinical Trials Registry (ACTRN12612001126808).