Risk Factors and Diagnosis of Adhesions after Hip Arthroscopy (dralisongrimaldi.com)

• Age <30 (5.9×) and low Harris Hip Score (2.4×) increase adhesion risk.
• Lack of hip circumduction exercises (4.1×) increases risk; microfracture reduces it (3.1×) due to extended CPM and weightbearing.
• No specific clinical tests; ROM loss >5° and active mid-range pain (not passive) are suggestive.

"Post-operative adhesions after hip arthroscopy are a common cause of revision surgery. This article reviews risk factors identified by Willimon et al. (2014): age under 30 (5.9×), Modified Harris Hip Score <50 (2.4×), and lack of hip circumduction exercises (4.1×). Microfracture was protective (3.1× less likely), likely due to extended CPM and protected weightbearing. Diagnosis remains clinical and imaging-based; no specific tests exist, but features like loss of ROM >5° in all planes, pain on loading, and pain with active mid-range motion (not passive) raise suspicion. The role of post-operative factors (rehabilitation, compliance) appears more impactful than intra-operative variables."