摘要:

The mechanical properties of a number of commercially available bone cements have been investigated. Tests were carried out on specimens in compression, in bending and in tension. Using the compression test as a standard, the effects of the following variables were studied: the addition of antibiotics, strain rate, environmental temperature, and age. It was concluded that age, temperature and rate of straining have a marked effect on the strength of the cement, while the addition of small quantities of antibiotics only marginally weakens the cement.

ISSN:0309-1902    

DOI:10.3109/03091907709160626

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

摘要:

One of the major requirements of the medical consultant treating paraplegic patients is to have them upright for at least a few hours a day associated, if possible with some physical exercise. This paper deals with the construction and operation of an appliance which makes this possible.

ISSN:0309-1902    

DOI:10.3109/03091907709160627

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

摘要:

If a fracture of the tibia is incorrectly reduced and a plate fixed across the fracture site, then all of the load during subsequent weight bearing can be considered to be taken by the screws fixing the plate to the bone. An analysis of this extreme situation and determination of the magnitude of the consequent forces on the screws indicate that the screws are in danger of failing due to the shear forces but are in little danger from the tensile forces.

ISSN:0309-1902    

DOI:10.3109/03091907709160628

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

摘要:

This study was undertaken to assess the effects of certain common modes of load carrying by hand in the BK amputee-PTB prosthesis system. The energy costs of a test group consisting of BK amputees using PTB prostheses werecompared to those of a control group made up of normal able-bodied individuals and the difference between the two groups was observed to be more marked when walking was performed on the level with load in one hand only in comparison with the both-hand carrying conditions. Single handed load carrying by either hand did not seem to make any observable difference. Stair ascending with equal load in both hands did not produce any appreciable difference between the two groups. Indications were obtained that the BK amputee with a PTB prosthesis system is capable of performing industrial tasks of“moderate”grade.

ISSN:0309-1902    

DOI:10.3109/03091907709160629

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907709160630

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907709160631

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907709160632

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907709160633

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907709160634

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor

ISSN:0309-1902    

DOI:10.3109/03091907709160635

出版商:Taylor&Francis    

年代:1977

数据来源: Taylor