Medial Joint Opening in the Operated Knee After Unilateral High Tibial Osteotomy: Risk of Osteoarthritis and Future Surgery in the Operated and Nonoperated Knee

Background: High tibial osteotomy (HTO) modifies the mechanics of the affected knee but can also affect the nonoperated knee. However, no research has reported on the prognosis and risk factors related to the nonoperated knee after unilateral HTO. Purpose: To assess the radiological parameters assoc...

Full description

Saved in:
Bibliographic Details
Published in:The American journal of sports medicine 2024-11, Vol.52 (13), p.3266-3276
Main Authors: Gimm, Geunwu, Ji, Hyunjun, Ro, Du Hyun, Lee, Myung Chul, Han, Hyuk-Soo
Format: Article
Language:English
Subjects:
Adult
Aged
Disease Progression
Female
Humans
Joint surgery
Knee
Knee Joint - surgery
Male
Middle Aged
Osteoarthritis
Osteoarthritis, Knee - surgery
Osteotomy - methods
Radiography
Retrospective Studies
Risk Factors
Tibia - surgery
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Background: High tibial osteotomy (HTO) modifies the mechanics of the affected knee but can also affect the nonoperated knee. However, no research has reported on the prognosis and risk factors related to the nonoperated knee after unilateral HTO. Purpose: To assess the radiological parameters associated with osteoarthritis (OA) progression and the need for surgery in the nonoperated knee after unilateral HTO, with concurrent assessment of the operated knee. Study Design: Case series; Level of evidence, 4. Methods: The medical charts of 197 patients with knee OA who underwent unilateral HTO between March 2007 and December 2020 were retrospectively investigated. Radiological parameters such as the Kellgren-Lawrence grade, weightbearing line ratio, joint line convergence angle (JLCA), and joint line obliquity angle were assessed preoperatively and 1 year postoperatively. Results: The mean follow-up length for the 197 patients was 5.9 ± 3.2 years for the operated knee and 5.5 ± 3.2 years for the nonoperated knee. A smaller postoperative JLCA in the operated knee was a significant risk factor for OA progression (P = .027) and undergoing surgery (P = .006) in the nonoperated knee. Conversely, a larger postoperative JLCA in the operated knee was a significant risk factor for OA progression (P = .014) and conversion to arthroplasty (P = .027) in the operated knee. A postoperative JLCA >1.5° (P < .001) and
ISSN:0363-5465
1552-3365
1552-3365
DOI:10.1177/03635465241285455