Differences in patellofemoral contact mechanics associated with patellofemoral pain syndrome
| Autor: | Jessica C. Küpper, K. D. Connolly, Richard Frayne, Lindsey Westover, Janet L. Ronsky |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Adult
Male musculoskeletal diseases Biomedical Engineering Biophysics Isometric exercise Patellofemoral Joint Humans Medicine Orthopedics and Sports Medicine Femur Range of Motion Articular Orthodontics medicine.diagnostic_test business.industry Rehabilitation Healthy subjects Magnetic resonance imaging Patella Anatomy medicine.disease Contact mechanics Patellofemoral Pain Syndrome Female business Contact area Range of motion Patellofemoral pain syndrome |
| Zdroj: | Journal of Biomechanics. 42:2802-2807 |
| ISSN: | 0021-9290 |
| DOI: | 10.1016/j.jbiomech.2009.07.028 |
| Popis: | Patellofemoral pain syndrome (PFPS) is a disorder of the patellofemoral (PF) joint in which abnormal tracking is often cited as a factor in pain development. PF tracking is partially dependent on passive stabilizers (ex: PF geometry). Relations amongst PFPS, PF tracking, and contact mechanics are poorly understood. In-vivo investigation of passive PF joint stabilizers including PF tracking, contact mechanics, cartilage thickness, and patellar shape will allow structural characterization of the PF joint and may highlight differences associated with PFPS. This study examined the role that passive stabilizers play in PFPS (n=10) versus healthy subjects (n=10). PF tracking (contact area centroid migration), cartilage thickness, shape, congruence, and contact patterns were quantified using magnetic resonance imaging during isometric loading at 15 degrees , 30 degrees , and 45 degrees of knee flexion. Distinct relationships were identified between patellar shape and tracking and contact, particularly at low flexion (15-30 degrees ). Healthy subjects exhibited distinct PF tracking and contact patterns related to Type I patella shape (80%) with increasing total contact area (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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