Short-Term Results of MIS-UKA

• Published in: Orthopedics & Traumatology Vol. 60; no. 2; pp. 263 - 265
• Main Authors: Yamaoka, Kazuhiro, Shuto, Toshihide, Irie, Manabu, Yasuda, Junji
• Format: Journal Article
• Language: Japanese
• Published: West-Japanese Society of Orthopedics & Traumatology 25.03.2011
• Subjects: minimally invasive surgery; short term results; unicompartmental knee arthroplasty
• ISSN: 0037-1033; 1349-4333
• DOI: 10.5035/nishiseisai.60.263

Twenty consecutive minimally invasive unicompartmental knee arthroplasties (MIS-UKA) in 20 patients (mean age; 72.0 years) were studied retrospectively. Seven knees were diagnosed with medial osteoarthritis,and thirteen had osteonecrosis of the medial femoral condyle. The mean follow-up period was 15 months. The mean JOA score improved from 52.0 points to 87.5 points at the final follow-up. The mean range of motion improved from 122° to 132°. Radiographically, preoperative varus alignment (mean FTA 179°) improved to the normal range of alignment (mean FTA 175°). There were no surgical complication. We concluded that MIS-UKA is quite useful, especially for aged patients with unicompartmental osteoarthritis or necrosis.