Precision Rehabilitation After Youth Anterior Cruciate Ligament Reconstruction: Individualized Reinjury Risk...

Area of Science:

• Orthopedic surgery
• Sports medicine
• Biostatistics

Background:

• Adolescent athletes have a high risk of second anterior cruciate ligament (ACL) injuries post-reconstruction.
• Revision ACL reconstruction leads to significant costs, reduced activity, chronic pain, and osteoarthritis.
• Current reinjury risk identification methods lack predictive accuracy and focus on nonmodifiable factors.

Purpose of the Study:

• Develop an ACL reinjury risk prediction (ACL-RRP) model.
• Accurately classify individual patient reinjury risk.
• Identify and rank modifiable risk factors for targeted intervention.

Main Methods:

• Utilized a clinician-informed approach to develop the ACL-RRP model.
• Split data into training (80%) and holdout (20%) sets for model development and validation.
• Assessed classification accuracy using sensitivity, specificity, predictive values, and odds ratios.

Main Results:

• The final model incorporated 33 predictor variables, with 23 being modifiable.
• Achieved 94% sensitivity and 76% specificity in classifying reinjury risk.
• High-risk patients demonstrated a 4.5 times greater risk of repeat ACL injuries.

Conclusions:

• The clinician-informed ACL-RRP model accurately classifies patient reinjury risk.
• The model provides patient-specific, modifiable risk factors to guide rehabilitation and education.
• This approach aims to reduce the incidence of ACL reinjury in adolescent athletes.