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1996ChenHH_LeeMC

 

Abstract of the article Chen HH, Li AF, Li KC, Wu JJ, Chen TS, Lee MC. Adaptations of ligamentum teres in ischemic necrosis of human femoral head (1996). The authors investigate the strength of the ligamentum capitis femoris (LCF) in avascular necrosis and femoral neck fracture. The text in Russian is available at the following link: 1996ChenHH_LeeMC.


Annotation 

Little is known about the biomechanical properties of human ligamentum teres. To more fully understand the ligamentum teres, its dimensions and mechanical properties were measured in 22 cases of acute fracture of the femoral neck and 21 cases of ischemic necrosis of the femoral head. The specimens first were preconditioned and then loaded to failure with a testing machine at a fast strain rate of 100% s(-1). The ischemic necrosis group had a significantly larger volume (3.09 +/- 1.81 ml versus 1.30 +/- 0.62 ml) and cross section area (65.3 +/- 59.1 mm2 versus 30.6 +/- 27.2 mm2) than did the acute fracture group. The former also had a significantly greater ultimate load (234 +/- 168 N versus 130 +/- 111 N) and strain energy to failure (1.22 +/- 1.04 J versus 0.41 +/- 0.39 J), but a significantly smaller linear modulus (4.72 +/- 3.31 MPa versus 8.69 +/- 7.97 MPa) than did the latter. Histologic studies showed differences in the amount of organized collagen and components of subsynovial tissue between the 2 groups. Mechanical and morphologic adaptations of the ligamentum teres in a group of ischemic femoral heads are described, and a possible biomechanical role is suggested for the ligamentum teres in the hip joint in conjunction with the ischemic necrosis of the femoral head.


Source & links

Chen HH, Li AF, Li KC, Wu JJ, Chen TS, Lee MC. Adaptations of ligamentum teres in ischemic necrosis of human femoral head. Clin Orthop Relat Res. 1996;328:268-75. journals.lww.com , pubmed.ncbi.nlm.nih.gov , PMID: 8653968 DOI: 10.1097/00003086-199607000-00041


Authors & Affiliations

Chen, Hsiang-Ho PhD - Department of Orthopaedics & Traumatology, Taipei-Veterans General Hospital, Taipei, Republic of China.

Li, Anna Fen-Yau MD, PhD  

Li, Kung-Chia MD, PhD

Wu, Jiunn-Jer MD

Chen, Tain-Shiung MD

Lee, Maw-Chang PhD


Keywords

ligamentum capitis femoris, ligamentum teres, ligament of head of femur, role, pathology, properties, strength, physical properties


NB! Fair practice / use: copied for the purposes of criticism, review, comment, research and private study in accordance with Copyright Laws of the US: 17 U.S.C. §107; Copyright Law of the EU: Dir. 2001/29/EC, art.5/3a,d; Copyright Law of the RU: ГК РФ ст.1274/1.1-2,7

                                                                   

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