Effect of lateral wedge insole on medial meniscus extrusion and its association with knee osteoarthritis progression.
Prosthet Orthot Int
; 2024 Mar 05.
Article
em En
| MEDLINE
| ID: mdl-38441477
ABSTRACT
BACKGROUND:
Medial meniscus extrusion (MME) is associated with knee osteoarthritis (OA) progression because of increased loading stress in the medial compartment of the knee. Using a lateral wedge insole (LWI) decreases loading stress and immediately reduces MME.OBJECTIVE:
To investigate whether the wearing duration of LWI affects the midterm response to MME and is associated with knee OA progression. STUDYDESIGN:
Cohort study.METHODS:
Twenty-three patients with knee OA who were conservatively treated with LWI were classified according to the duration of the LWI wear per day less than 5 h (short-duration group) or over 5 h (long-duration group). MME was evaluated in the single-leg standing position by ultrasound. Knee OA progression and limb alignment were evaluated radiographically. These evaluations were performed thrice at the initial office visit as a baseline without LWI (time 0), with LWI (LWI-time 0), and 1 year after intervention with LWI (LWI-1 year).RESULTS:
In both groups, the MMEs at LWI time 0 were significantly decreased compared with those at time 0. In the long-duration group, this reduction in MME was maintained 1 year after the intervention compared with time 0 (time 0 3.9 ± 0.9, LWI-1 year 2.6 ± 1.1), but this improvement was not observed in the short-duration group (time 0 3.8 ± 1.7, LWI-1 year 3.6 ± 1.7). In addition, three of four patients demonstrated OA progression, and varus alignment had significantly progressed compared with that at time 0 in the short-duration group. However, the long-duration group showed OA progression only in one patient and maintained limb alignment.CONCLUSIONS:
The duration of wearing LWI affects the midterm reduction of MME and knee OA progression while maintaining limb alignment.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Prosthet Orthot Int
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Japão