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Osteoarthritis in ankle and knee joints
K Huch1, K E Kuettner, P Dieppe
1Department of Biochemistry, Rush Medical College, Rush-Presbyterian-St. Luke's Medical Center, Chicago, IL 60612, USA.
Seminars in Arthritis and Rheumatism
|February 1, 1997
Summary
Osteoarthritis (OA) affects knee joints more severely than ankle joints. Differences in joint mechanics and cartilage may explain why ankle cartilage fissures rarely progress to debilitating knee osteoarthritis.
Area of Science:
- Orthopedics
- Biochemistry
- Rheumatology
Background:
- Osteoarthritis (OA) susceptibility varies significantly between different diarthrodial joints.
- The knee joint frequently develops OA, while the ankle joint appears more resistant.
Purpose of the Study:
- To review and synthesize existing literature comparing the susceptibility of ankle and knee joints to osteoarthritis (OA).
- To explore potential biological and biomechanical factors contributing to the differential progression of OA in these joints.
Main Methods:
- A comprehensive literature search was conducted using Medline.
- Bibliographies of relevant review articles were also searched to identify additional studies.
Main Results:
- Knee cartilage degeneration is strongly associated with OA development and clinical symptoms.
- Ankle cartilage typically develops fissures that do not progress to advanced OA stages, supported by epidemiological data.
- Potential explanatory factors include differences in joint motion, cartilage properties, mechanical loading, and evolutionary adaptations.
Conclusions:
- Significant differences exist in OA pathogenesis between the ankle and knee joints.
- Investigating chondrocyte responses and comparing joint cartilage from the same donor could elucidate OA mechanisms and inform early detection and treatment strategies.