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