Risk Factors for Complications After Proximal Hamstring Avulsion Injury: Analysis of 757 Patients From the PHAS...

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Musculoskeletal Research

Background:

• Proximal hamstring avulsion injuries (PHAIs) are significant injuries often requiring surgical repair.
• Limited data exist on postoperative complications, risk factors, and long-term outcomes following PHAI surgery.

Purpose of the Study:

• Analyze complication rates after PHAI surgery.
• Identify risk factors for non-rerupture complications.
• Investigate associated musculoskeletal conditions and functional outcomes.

Main Methods:

• Prospective cohort study of 757 patients surgically treated for PHAI (2002-2023).
• Exclusion of revision surgeries or bony avulsions.
• Assessment of complication rates, risk factors, and functional outcomes using PHAS, Tegner, and UCLA scores.

Main Results:

• Overall complication rate was 10.4% (4.7% non-rerupture, 5.6% rerupture).
• Work-related accidents (OR 5.59) and isolated semimembranosus injuries (OR 12.1) were significant risk factors for non-rerupture complications.
• Complication group showed worse functional outcomes (lower PHAS, reduced return-to-sport rates).

Conclusions:

• PHAI surgery carries a notable complication rate (10.4%) that negatively affects functional outcomes.
• Work-related accidents and isolated semimembranosus injuries are identified risk factors for complications.
• Moderate sitting discomfort affects ~5% but is not linked to postoperative complications.