✦ LIBER ✦

Mechanism of failure of the ligamentum flavum of the spine during in vitro tensile tests

✍ Scribed by Dr. T. A. Sikoryn; Dr. D. W. L. Hukins

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 537 KB
Volume: 8
Category: Article
ISSN: 0736-0266
DOI: 10.1002/jor.1100080415

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Thirty ligamenta flava were dissected from pig lumbar spines with their attachments to the bone of the laminae still intact. These specimens were tested to failure, in tension, at strain rates of 0.03 and 0.2s‐^1^. Video recordings ligaments became detached from the bone. The maximum stress that the ligaments were able to transmit was approxmately 3 MPa. However, the corresponding strain was higher when testing at the slower strain rate than at the faster rate; these strains were 1.6 ± 0.5 and 1.0 ± 0.3, respectively. All specimens were able to transmit stress after the maximum value had been attained because threads of ligament continued to remain attached to bone. Complete failure did not occur until the last of these threads had pulled away. Scanning electron micrographs showed no ligament, other than a few isolated pieces of fibre, adhering to bone after failure had occurred.

📜 SIMILAR VOLUMES

In vitro mechanical testing of the ligam

In vitro mechanical testing of the ligaments of the human foot

✍ Lloyd T. Walker; Alexander C. Nicol 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 144 KB

Mechanical overload decreases the therma

Mechanical overload decreases the thermal stability of collagen in an in vitro tensile overload tendon model

✍ Thomas L. Willett; Rosalind S. Labow; J. Michael Lee 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 134 KB

## Abstract Musculoskeletal soft tissue injuries are very common, yet poorly understood. We investigated molecular‐level changes in collagen caused by tensile overload of bovine tail tendons in vitro. Previous investigators concluded that tensile tendon rupture resulted in collagen denaturation, bu

Chemical and mechanical degradation of U

Chemical and mechanical degradation of UHMWPE: Report of the development of an in vitro test

✍ Clare M. Rimnac; Albert H. Burstein; James M. Carr; Robert W. Klein; Timothy M. 📂 Article 📅 1994 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 510 KB

Ultra high molecular weight polyethylene (UHMWPE), used in total joint replacement implants, undergoes oxidative degradation due to gamma radiation sterilization and to exposure to oxidizing agents in the body environment. UHMWPE components also experience large stresses both on and near the articul

Evaluation of the interactions between c

Evaluation of the interactions between collagen and the surface of a bioactive glass during in vitro test

✍ Rodrigo Oréfice; Larry Hench; Anthony Brennan 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 223 KB

## Abstract Interactions between biomaterials and the body environment usually determine the lifetime and performance of biomedical devices used as implants. Among a variety of different types of interactions that occur whenever biomaterials are implanted into the body, adsorption of biomacromolcul

The influence of support conditions in t

The influence of support conditions in the loading fixture on failure mechanisms in the push-out test: A finite element study

✍ Dr. T. P. Harrigan; J. Kareh; W. H. Harris 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 647 KB

## Abstract The usefulness of the push‐out test as an indicator of interface strength was evaluated using finite element models of intact and partially failed cylindrical push‐out specimens loaded against a rigid annular support. The irregular stress distributions that were found in intact specimen

Effect of in vitro testing over extended

Effect of in vitro testing over extended periods on the low-load mechanical behaviour of dense connective tissues

✍ Graham J. W. King; Corrie L. Pillon; James A. Johnson 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 345 KB

## Abstract Many biomechanical studies are performed on dense connective tissues in the laboratory over a substantial time period; however, the effect of the __in vitro__ testing environment on the cyclic load‐relaxation behaviour of these structures is not well established. This study evaluated th