Tibial condylar valgus osteotomy - indications and technique

Area of Science:

• Orthopedic surgery
• Knee osteoarthritis treatment
• Surgical techniques

Background:

• Medial unicompartmental osteoarthritis often necessitates surgical intervention.
• Tibial plateau shape is a critical factor in surgical indication.
• Valgus osteotomy aims to correct lower limb alignment and improve joint congruity.

Purpose of the Study:

• To detail the indications for tibial condylar valgus osteotomy (TCVO).
• To describe the surgical technique of TCVO.
• To highlight TCVO's role in managing knee osteoarthritis.

Main Methods:

• TCVO is indicated for middle-to-end-stage medial knee osteoarthritis, especially with a convex-type tibial plateau (over 5° joint line convergence angle).
• An L-shaped osteotomy is performed from the medial proximal tibia, guided by fluoroscopy.
• A locking plate is used for stabilization, and specific positioning is adopted to protect neurovascular structures.

Main Results:

• TCVO effectively corrects varus deformity and improves joint congruity.
• Accurate indication assessment and surgical planning are crucial for successful outcomes.
• Postoperative rehabilitation can be shortened due to stable osteotomy fixation.

Conclusions:

• TCVO is a valuable treatment for advanced knee osteoarthritis with lateral joint laxity and a pagoda-type tibial plateau.
• Careful patient selection and surgical technique are paramount for effective correction.
• Additional procedures may be necessary for under-corrected varus deformities.