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Predictive Factors Influencing Functional Results After Proximal Hamstring Tendon Avulsion Surgery: A
Raymond Best1,2, Anorte Meister1, Malin Meier1
1Department of Orthopaedic and Sports Trauma Surgery, Sportklinik Stuttgart GmbH, Stuttgart, Germany.
Orthopaedic Journal of Sports Medicine
|November 4, 2021
Summary
Delayed surgery and female sex negatively impact functional outcomes following proximal hamstring tendon repair. Male patients reported better results, while age and MRI stump retraction showed no significant effect on recovery.
Area of Science:
- Orthopedic surgery
- Sports medicine
- Musculoskeletal research
Background:
- Proximal hamstring tendon avulsion injuries are rare but can lead to poor outcomes if diagnosis and treatment are delayed.
- Previous studies have not extensively investigated factors influencing functional recovery in large patient cohorts.
Purpose of the Study:
- To identify factors affecting functional outcomes after surgical repair of proximal hamstring tendon avulsions.
- To determine the correlation between the time to surgery and patient outcomes.
Main Methods:
- A case series (Level of evidence, 4) involving patients who underwent surgical treatment for proximal hamstring tendon avulsion between 2010 and 2020.
- Patients completed the Perth Hamstring Assessment Tool (PHAT) to measure functional outcomes.
- Analysis included age, sex, MRI stump retraction, and timing of surgery as potential predictive factors.
Main Results:
- 204 patients with proximal hamstring tendon avulsion were analyzed, with a high PHAT questionnaire return rate (85.3%).
- The average PHAT score was 79.8 ± 19.1, indicating good functional outcomes.
- Delayed surgery (mean 5.7 weeks post-trauma) significantly correlated with lower PHAT scores (P = .003). Male patients reported significantly higher scores than female patients (P = .004).
- MRI stump retraction and patient age did not significantly influence PHAT scores.
Conclusions:
- Delayed surgical intervention and female sex are associated with poorer functional outcomes after proximal hamstring tendon refixation.
- Preoperative MRI stump retraction and patient age were not found to be significant predictors of functional outcome in this cohort.
