Anatomical MCL reconstruction following TKA

Area of Science:

• Orthopedic Surgery
• Biomechanics
• Arthroplasty Research

Background:

• Ligament balancing is crucial for total knee arthroplasty (TKA) success.
• Instability following TKA can necessitate revision surgery.
• Secondary valgus laxity is a potential cause of early TKA failure.

Observation:

• A case of early TKA failure presented with secondary valgus laxity.
• The patient experienced severely disabling symptoms due to instability.
• Revision surgery was considered to address the TKA failure.

Findings:

• Successful treatment was achieved through medial collateral ligament (MCL) reconstruction.
• Anatomical MCL reconstruction utilized a flattened semitendinosus autograft.
• The reconstruction addressed both the superficial MCL and posterior oblique ligament.

Implications:

• MCL reconstruction is a viable option for managing secondary valgus laxity after TKA.
• Anatomical reconstruction techniques may restore knee stability.
• This approach offers a solution for early TKA failures, potentially avoiding more complex revisions.