期刊
JOURNAL OF BIOMECHANICS
卷 42, 期 14, 页码 2323-2329出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jbiomech.2009.06.049
关键词
Patella; Patellofemoral joint; Strength; Structural properties; Lateral retinaculum; Iliotibial band
资金
- University of Malaya Medical Centre, Kuala Lumpur
- Arthritis Research Campaign (ARC)
Although lateral retinacular releases are not uncommon. there is very little scientific knowledge about the properties of these tissues. on which to base a rationale for the surgery We hypothesised that we could identify specific tissue bands and measure their structural properties. Eight fresh-frozen knees were dissected. and the lateral soft tissues prepared into three distinct structures. a broad tissue band linking the iliotibial band (ITB) to the patella, and two capsular ligaments patellofemoral and patellomeniscal. These were individually tensile tested to failure by gripping the patella in a vice jaw and the soft tissues in a freezing clamp. Results: the ITB-patellar band was strongest, at a mean of 582 N. and stiffest. at 97 N/mm The patellofemoral ligament failed at 172 N with 16 N/mm stiffness: the patellomeniscal ligament failed at 85 N, with 13 N/mm stiffness These structural properties suggest that most of the load in-vivo is transmitted to the patella by the transverse fibres that originate from the ITB. (C) 2009 Elsevier Ltd All rights reserved.
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