Total knee arthroplasty in the valgus knee

Area of Science:

• Orthopedic Surgery
• Biomechanics
• Anatomy

Background:

• Valgus knee deformity is a common challenge in total knee arthroplasty (TKA), affecting approximately 10% of patients.
• Deformity arises from bone remodelling (e.g., cartilage erosion, condylar hypoplasia) and soft tissue contractures (e.g., lateral collateral ligament, hamstring tendons).

Purpose of the Study:

• To review anatomical variations contributing to valgus knee deformity.
• To assess optimal pre-operative planning and implant constraint selection for TKA in valgus knees.
• To evaluate surgical approaches, bone cuts, and soft tissue management techniques.

Main Methods:

• Literature review of anatomical variations in valgus knees.
• Analysis of pre-operative planning strategies and clinical examination findings.
• Review of surgical techniques, including anteromedial and anterolateral approaches, bone cuts, and lateral soft tissue release sequences.

Main Results:

• Valgus knee deformity involves complex anatomical changes in bone and soft tissues.
• Comprehensive pre-operative assessment is crucial for successful TKA.
• Debate exists regarding the optimal sequence for lateral soft tissue release to ensure stability.

Conclusions:

• Effective management of valgus knee deformity in TKA requires a thorough understanding of underlying anatomy and meticulous surgical planning.
• The choice of surgical approach and the sequence of soft tissue releases are critical for achieving optimal outcomes.
• Further research may clarify the best strategies for managing these complex deformities.