Pressures in critical regions of the below-knee patellar-tendon-bearing prosthesis.

Development of Refined Fitting Procedures for Lower-extremity Prosthese

With the development of the patellar-tendon-bearing prosthesis by the University of California at Berkeley, many new advantages in simplicity, comfort, and function were available to the below-knee amputee. However, there still exists the problem of concentrated pressures over small areas of the stump. The original design of the patellar-tendonbearing prosthesis was intended to distribute the l...

Application of prosthetics-orthotics principles to treatment of fractures.

1 School of Medicine, University of Miami, Jackson Memorial Hospital, Miami, Fla. 33152. Greater knowledge and understanding of bioengineering by the prosthetics and orthotics industries during the past twenty years have resulted in the development of highly functional and sophisticated appliances. For example, modern prostheses for lowerand upperextremity amputees are now designed with proper ...

Variants of the PTB (patellar-tendon-bearing) below-knee prosthesis.

The evolution of functional bracing of fractures.

©2006 British Editorial Society of Bone and Joint Surgery doi:10.1302/0301-620X.88B2. 16381 $2.00 J Bone Joint Surg [Br] 2006;88-B:141-8. Functional fracture bracing, described in 1967, 1 was inspired by the patellar-tendonbearing prosthesis which had recently been developed for below-knee amputees. This prosthesis had eliminated the traditional thigh corset and allowed the transfer of weight-b...

Analysis of a below-knee patellar tendon-bearing prosthesis: a finite element study.

In this study, a finite element (FE) model of a below-knee prosthesis of patellar tendon-bearing (PTB) design, and several altered variations of the model have been constructed. A load of approximately 1.5 times normal body weight (984 N) was applied at the heel of the model to simulate heelstrike conditions. The "base" model was then analyzed and revised iteratively until a model which provide...