The tensile and stress relaxation responses of human patellar tendon varies with specimen cross-sectional area

被引:78
作者
Atkinson, TS
Ewers, BJ
Haut, RC
机构
[1] Michigan State Univ, Coll Osteopath Med, Orthopaed Biomech Lab, E Lansing, MI 48824 USA
[2] Michigan State Univ, Coll Engn, Dept Mech & Mat Sci, E Lansing, MI 48824 USA
关键词
tendon; poroelasticity; collagen sub-fascicle; model; water;
D O I
10.1016/S0021-9290(99)00089-5
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
In order to provide insight into the mechanical response of the collagen fascicle structures in tendon, a series of constant strain rate and constant displacement, stress relaxation mechanical tests were performed on sequentially sectioned human patellar tendon specimens (protocol 1) and specimens with both small ( similar to 1 mm(2)) and large ( similar to 20 mm(2)) cross-sectional areas (protocol 2). These data described the stress relaxation and constant strain rate tensile responses as a function of cross-sectional area and water content. The experimental data suggested that small portions of tendon exhibit a higher tensile modulus, a slower rate of relaxation and a lower amount of relaxation in comparison to larger specimens from the same location in the same tendon. The decrease in relaxation response and the increase in tensile modulus with decreasing cross-sectional area was nonlinear. These data suggest that there may be structures other than the subfascicle, such as the epitenon and other connective tissue components, which influence the tensile and stress relaxation responses in tendon. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:907 / 914
页数:8
相关论文
共 26 条
[1]   A poroelastic model that predicts some phenomenological responses of ligaments and tendons [J].
Atkinson, TS ;
Haut, RC ;
Altiero, NJ .
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, 1997, 119 (04) :400-405
[2]  
ATKINSON TS, 1997, P 1997 BIOENG C SUNR
[3]   MICROSTRUCTURALLY BASED MODEL ANALYSIS OF GAMMA-IRRADIATED TENDON ALLOGRAFTS [J].
BELKOFF, SM ;
HAUT, RC .
JOURNAL OF ORTHOPAEDIC RESEARCH, 1992, 10 (03) :461-464
[4]   BIOMECHANICS OF CRANIAL CRUCIATE LIGAMENT RECONSTRUCTION IN THE DOG .2. MECHANICAL-PROPERTIES [J].
BUTLER, DL ;
HULSE, DA ;
KAY, MD ;
GROOD, ES ;
SHIRES, PK ;
DAMBROSIA, R ;
SHOJI, H .
VETERINARY SURGERY, 1983, 12 (03) :113-118
[5]   COMPARISON OF MATERIAL PROPERTIES IN FASCICLE-BONE UNITS FROM HUMAN PATELLAR TENDON AND KNEE LIGAMENTS [J].
BUTLER, DL ;
KAY, MD ;
STOUFFER, DC .
JOURNAL OF BIOMECHANICS, 1986, 19 (06) :425-432
[6]   SURFACE STRAIN VARIATION IN HUMAN PATELLAR TENDON AND KNEE CRUCIATE LIGAMENTS [J].
BUTLER, DL ;
SHEH, MY ;
STOUFFER, DC ;
SAMARANAYAKE, VA ;
LEVY, MS .
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, 1990, 112 (01) :38-45
[7]  
BUTLER DL, 1987, T 33 ANN M ORTH RES
[8]  
CHEN C, 1995, P 1995 BIOENG C BEAV
[9]  
CHEN CT, 1997, ADV BIOENG, V36, P185
[10]  
CHEN CT, 1993, P 1993 BIOENG C BREC