Treatment of Acute Isolated PCL Injury (Grade II–III) in Young, Active Patients
Clinical Scenario
This protocol addresses acute, isolated posterior cruciate ligament (PCL) injury presenting with significant posterior tibial translation in young patients who have an active lifestyle or athletic demands.
Grade III — >10 mm posterior tibial translation
Grade II — 6–10 mm in young active patients
Why This Severity Matters
When posterior knee laxity exceeds Grade II levels (more than 6–10 mm posterior tibial translation), surgical management is recommended to prevent progressive damage to cartilage and the meniscus. For individuals with posterior knee instability who have physical activity demands — particularly athletes — PCL reconstruction is specifically indicated.
Approach Overview
Surgical reconstruction is the central intervention for this presentation, with the choice of graft material and technique forming an important part of the decision. Timing of the procedure is guided by the patient's clinical status rather than the interval since injury.
The complete graft selection criteria, surgical technique considerations, and the full step-by-step management algorithm are available in the structured protocol.
References
- If knee laxity is successively greater than grade II (6–10 mm posterior tibial translation), surgery is recommended then to prevent further damage to cartilage and meniscus.
- For individuals with posterior instability of the knee who have a demand for physical activity, PCL reconstruction is recommended, especially for athletes.
- Timing of early PCL reconstruction in isolated PCL tears should be based on clinical status rather than time from injury.
- Allografts or LARS can be considered a suitable alternative to autografts for PCL reconstruction.
- PCL reconstruction can consider single-bundle or double-bundle techniques, but the double-bundle technique has better knee stability and biomechanics.
DOI: 10.1097/JS9.0000000000002416
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