Scoring system for optimal management of acute traumatic patellar dislocation: A multicenter study.

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Biostatistics

Background:

• First-time acute traumatic patellar dislocations involve complex factors influencing management.
• Optimal treatment requires careful consideration of both conservative and surgical interventions.
• A simple, clinically applicable scoring system is needed.

Purpose of the Study:

• To develop a straightforward scoring system for predicting recurrence risk in acute traumatic patellar dislocations.
• To aid clinicians in decision-making for conservative versus surgical management.

Main Methods:

• Retrospective review of 131 patients with first-time acute traumatic patellar dislocations.
• Logistic regression analysis was used to establish the scoring system based on odds ratios.
• 81 patients who underwent conservative treatment were analyzed with an average follow-up of 17.1 months.

Main Results:

• A 10-point scoring system was developed, incorporating age, sports injury, hemarthrosis, bony fragment, patellar shift, and trochlear dysplasia.
• A score of 7 or higher was a dominant factor for recurrence (Odds Ratio = 27.1).
• Recurrence risk stratification: ≤4 (low risk, 5%), 5-7 (medium risk, 48%), ≥8 (high risk, 91%).

Conclusions:

• Patients scoring ≥8 are at high risk for recurrence and may be suitable for surgical treatment.
• Patients scoring ≤4 have a low recurrence risk and are likely candidates for conservative management.
• The developed scoring system provides a simple tool for guiding treatment decisions in acute traumatic patellar dislocations.