Results of isolated posterolateral corner reconstruction

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Knee Biomechanics

Background:

• Isolated posterolateral corner (PLC) tears are uncommon knee injuries.
• Evaluating surgical techniques for PLC tears is challenging due to concurrent cruciate ligament injuries.
• This study focuses on the clinical outcomes of PLC reconstruction using a fibular-based technique.

Purpose of the Study:

• To determine the clinical outcomes of isolated PLC reconstruction.
• To assess the efficacy of the fibular-based surgical technique for posterolateral knee instability.
• To evaluate knee stability and patient-reported function after fibular-based PLC repair.

Main Methods:

• Retrospective case series of 10 patients with isolated PLC injuries.
• All patients underwent fibular-based PLC reconstruction between March 2005 and January 2007.
• Surgeries involved single or double femoral tunnels and semitendinosus allografts or autografts, followed by a standardized rehabilitation protocol.

Main Results:

• Mean follow-up was 27.5 months, with excellent (8/10) or good (2/10) results based on Lysholm scores.
• Mean range of motion was 143.5° flexion and 0.5° extension.
• Varus and rotational stability improved, with high Lysholm (94) and IKDC subjective (88.48) scores. No significant difference between single and double femoral tunnels.

Conclusions:

• The fibular-based technique demonstrates good clinical outcomes for chronic isolated PLC injuries.
• This surgical approach effectively restores varus and rotational stability to the knee.
• The technique provides a reliable option for treating isolated posterolateral knee instability.