The 4-strand posterolateral corner reconstruction can have significantly better outcomes for patients with rotational knee laxity than performing the modified Larson reconstruction, according to a study published in The American Journal of Sports Medicine.
Researchers mounted 14 intact cadaveric knees in a six degrees of freedom rig and subjected them to external loading conditions. The knee kinematics was recorded for intact, PLC-deficient, modified Larson PLC reconstruction and 4-strand PLC reconstruction.
The laxity in the 4-strand reconstruction was significantly less than in the PLC-deficient and modified Larson reconstruction. The 4-strand reconstruction did not differ significantly from intact laxity at any angle of flexion. The posterior translation didn't change in any condition tested, and the external rotation laxity was significantly less in the 4-strand reconstruction than in the other procedures.
Read the abstract about posterolateral corner reconstruction of the knee.
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Researchers mounted 14 intact cadaveric knees in a six degrees of freedom rig and subjected them to external loading conditions. The knee kinematics was recorded for intact, PLC-deficient, modified Larson PLC reconstruction and 4-strand PLC reconstruction.
The laxity in the 4-strand reconstruction was significantly less than in the PLC-deficient and modified Larson reconstruction. The 4-strand reconstruction did not differ significantly from intact laxity at any angle of flexion. The posterior translation didn't change in any condition tested, and the external rotation laxity was significantly less in the 4-strand reconstruction than in the other procedures.
Read the abstract about posterolateral corner reconstruction of the knee.
Read other coverage on sports medicine studies:
- Study: OITE Sports Medicine Treatment Questions Focus on Ligament Reconstruction, Rehabilitation
- Study: Hip MRI of Asymptomatic Hockey Players Could Predict Future Disability
- Study: Bony Fixation Anchor Tenodesis Best for Long Head Biceps Tendon Lesions