Pitfalls of proximal tibial osteotomy

Area of Science:

• Orthopedic Surgery
• Biomechanics
• Reconstructive Surgery

Background:

• Degenerative genu varus and valgus deformities are common in knee osteoarthritis.
• Proximal tibial osteotomy is a surgical procedure used to correct these deformities.
• While successful, specific technical challenges and potential complications can arise.

Purpose of the Study:

• To identify and discuss infrequently recognized pitfalls associated with proximal tibial osteotomy.
• To provide guidance on avoiding complications and optimizing surgical outcomes.
• To highlight critical factors for patient selection and technical execution.

Main Methods:

• Review of surgical techniques and potential complications in proximal tibial osteotomy.
• Analysis of factors contributing to surgical success and failure.
• Discussion of anatomical considerations and biomechanical principles.

Main Results:

• Excessive bone loss is a contraindication due to the 'teeter effect' and impaired weight-bearing.
• Patellofemoral arthritis can lead to persistent symptoms and necessitate secondary procedures.
• Careful planning to avoid >10-15 degrees of postoperative articular obliquity is essential.
• Secure fixation, closing wedge technique, and preventing distal fragment displacement ensure correction.
• Peroneal nerve palsy can be avoided with meticulous surgical technique and appropriate postoperative care.
• Preventing apical cortex cracking and ensuring plateau fragment visualization mitigate fracture risk.

Conclusions:

• Proximal tibial osteotomy offers excellent results for genu varus/valgus when performed with proper patient selection and surgical skill.
• Awareness and avoidance of specific pitfalls, such as excessive bone loss and articular obliquity, are critical for success.
• Meticulous surgical technique and planning are paramount to minimize complications and achieve satisfactory long-term outcomes.