Fracturas de la tibia proximal como complicación de la osteotomía tibial proximal valguizante. Fractures of the proximal tibia as complication of upper closing valgus osteotomy.

We performed a retrospective study of 12 upper clo- sing wedge valgus tibial osteotomies complicated with frac- ture of the proximal fragment, out of 409, with medial com- partment osteoarthritis of the knee. The fracture occured on the medial condyle only in 8 knees, on the medial and lateral condyles in 1 knee and intercondyloid eminence in 2 knees. The mechanism of production were closing of the osteotomy in 8, osteotomy line extended into a defect of the affected condyle in 2, and a thin proximal fragment in 2. All fractures consolidated in six weeks. The clinical results at follow-up were good in 8 and bad in 4.