Evaluation of tension-band osteosynthesis for cubitus varus deformity in pediatric patients: A retrospective review.

Purpose: This study aims to evaluate the effectiveness and safety of lateral closing wedge osteotomy with tension-band wire fixation for correcting cubitus varus deformity in pediatric patients. The primary objective was to assess the bone union rate, functional outcomes, and potential complications associated with this surgical approach.

Methods: We conducted a retrospective review of 104 pediatric cases (ages 7-15) with post-traumatic cubitus varus deformity treated between January 2018 and December 2019 at the Pediatric Orthopedic Department. The surgical technique involved a lateral closing wedge osteotomy with fixation achieved using an 8-figure tension-band wire on the lateral column of the distal humerus. Follow-up assessments were conducted for bone union, correction stability, range of motion, and any post-surgical complications.

Results: Out of 104 cases, 63 involved left elbows and 41 right elbows, with an average patient age of 8.12 years. The deformity was severe (>30° varus) in 33.65 % of cases. Successful correction and bone union were achieved in 100 % of cases, with an average follow-up duration of 8 months (range: 3-20 months). Complications included minor recurrence in two cases due to early post-operative trauma, limited range of motion in three cases, K-wire protrusion in three cases, and infection in two cases. Functional outcomes rated as excellent in 94.2 % of cases and good in 5.8 %.

Conclusion: Lateral closing wedge osteotomy with tension-band wire fixation is a reliable technique for correcting pediatric cubitus varus deformity, offering stable fixation, high success rates in bone healing, and favorable functional outcomes with minimal complications.