Medial opening wedge high tibial osteotomy: more than ten years of experience with Puddu plate technique supports its indication

• Published in: International orthopaedics 2020-10, Vol.44 (10), p.2021-2026
• Main Authors: Orrego, M., Besa, P., Orrego, F., Amenabar, D., Vega, R., Irribarra, L., Espinosa, J., Vial, R., Phillips, V., Irarrázaval, Sebastián
• Format: Article
• Language: English
• Subjects: Adult; Follow-Up Studies; Humans; Knee Joint - diagnostic imaging; Knee Joint - surgery; Male; Medicine; Medicine & Public Health; Original Paper; Orthopedics; Osteoarthritis, Knee - surgery; Osteotomy; Retrospective Studies; Tibia - surgery; Treatment Outcome
• ISSN: 0341-2695; 1432-5195
• DOI: 10.1007/s00264-020-04614-w

Purpose To describe the short-term and long-term results of patients who underwent a medial opening wedge high tibial osteotomy (MOW-HTO) for unicompartmental medial knee joint osteoarthritis. Methods A retrospective review was conducted of patients with MOW-HTO using a Puddu plate®, with more than ten year follow-up. The degree of correction, initial chondral damage, number of meniscal lesions, preoperative and 1-year postoperative functional scale scores (IKDC and Lysholm), and arthroplasty conversion rates at the ten year follow-up were registered. We assumed early indication when patients underwent the operation before they were 40 years old and delayed ≥ 40. Functional outcomes were analyzed by adjusting for pre-operative values. Fisher’s exact test was used to study the association between the arthroplasty conversion rates and the timing of indication. Results Fifty-five patients were included, 37 of whom were male (67%). Twenty-nine patients had early indications for surgery (53%). All patients completed ten year follow-up. All patients improved IKDC ( p