Capsular closure does not affect development of heterotopic ossification after hip arthroscopy

Area of Science:

• Orthopedic surgery
• Biomedical engineering

Background:

• Heterotopic ossification (HO) is a common complication after hip arthroscopy.
• Preventing HO is crucial for optimal patient outcomes.

Purpose of the Study:

• To evaluate the efficacy of capsular closure in reducing HO incidence following hip arthroscopy.

Main Methods:

• A retrospective comparative study included 100 hip arthroscopy patients (50 with capsular closure, 50 without).
• Radiographic follow-up exceeding 9 weeks was used to assess HO via the Brooker classification.
• Statistical analysis employed chi-square, Fisher exact, and Student t-tests.

Main Results:

• 36% of patients developed postoperative HO, with 14 cases in the capsular closure group.
• No significant differences in HO rates were observed between the capsular closure and control groups.
• The incidence of clinically significant HO (Brooker classification > I) also showed no significant difference.

Conclusions:

• Capsular closure after hip arthroscopy does not appear to alter the rate of heterotopic ossification.
• Current evidence suggests capsular closure is not an effective method for preventing HO post-hip arthroscopy.