ISSN:1040-8800    

出版商:OVID    

年代:1999

数据来源: OVID

摘要:

Posterior tibial tendon dysfunction (PTTD), which results in painful pes planus, is a common clinical problem that requires careful orthotic management. The purpose of this study was to conduct a chart review and telephone survey to determine the effectiveness of orthotic treatment. In this preliminary study the authors define effective orthotic treatment as treatment that reduces pain and assists the patient in returning to pre-PTTD activity levels. When comparing orthotic management among foot orthoses fabricated from cork and pelite, UCB-type foot orthoses, and various types of AFOs, strong trends were noted. UCBs andAFOs reduced pain in five and seven subjects respectively, but only AFO management successfully increased activity levels of the subjects.

ISSN:1040-8800    

出版商:OVID    

年代:1999

数据来源: OVID

摘要:

Stress analysis using finite element models is now being implemented in prosthetics to overcome empirical socket design procedures and to further improve computer-aided systems. This article describes the use of anatomical data from magnetic resonance images of a single subject to produce a generic mathematical model of the residual soft tissues and skeletal structure. The model, validated through experimentally measured parameters, was employed to theoretically evaluate the mechanical behavior of tissues, predict interface stresses, and aid in shaping the socket. Numerical analysis could improve socket design criteria and advance rehabilitation services to enhance the quality of life of individuals with amputations.

ISSN:1040-8800    

出版商:OVID    

年代:1999

数据来源: OVID

摘要:

This article presents the rationale for designing the Slip-Fit Joint. The Slip-Fit Joint eases stress on a patient in donning and doffing an orthosis that crosses the hip joint, such as a HKAFO or a TLSO with a thigh component, especially in a bilateral situation. The Slip-Fit Joint allows a practitioner to separate the orthosis into pelvic and lower sections, and reassemble the two with initial alignment preserved. Once the two are separated, the lower section can be donned independent of the pelvic section. This feature is extremely helpful when fitting bilateral patients or patients whose risk of dislocation while in bed is high. With the Slip-Fit Joint one can also make nearly unlimited internal/external rotational adjustments.

ISSN:1040-8800    

出版商:OVID    

年代:1999

数据来源: OVID

摘要:

Instability and balance impairment is common in patients with diabetic sensory neuropathy placing them at a higher risk of falling when performing more challenging daily tasks. The report describes the results of a dynamic balance tests of a subject with neuropathy due to the long-standing diabetes. The Computerized Dynamic Posturography was performed with and without ankle-foot orthoses (AFOs). The apparatus provided six test conditions designed to systematically manipulate vestibular, somatosensory, or visual information. With no orthoses the patient had falls performing most of the tests. Bilateral orthoses improved his balance: a derived composite balance score increased four times. In view of these findings, AFOS, in addition to correcting the patient's foot placement during locomotion, could also be expected to improve the maintenance of balance during quiet stance or dynamic perturbation.

ISSN:1040-8800    

出版商:OVID    

年代:1999

数据来源: OVID

摘要:

This article discusses a new design in achieving humeral rotation in the bodypowered prosthesis for the transhumeral bilateral and unilateral amputees. The humeral rotator (H.R.) unit has the ability to rotate 220°: 165° to the medial range and 55° to the lateral range. It affords positive locking in all positions to overcome side pressures. Side pressure is any force that causes the prosthetic arm to involuntarily move to the medial or lateral side.Working models have been constructed and tested to evaluate the concept. The result was a 75% improvement in function, efficiency, and appearance. To increase the independence of a transhumeral amputee, it is recommended that the H.R. unit be used whenever possible.

ISSN:1040-8800    

出版商:OVID    

年代:1999

数据来源: OVID