Article

The TC double socket above-knee prosthesis.

Prosthetics and Orthotics International (Impact Factor: 0.62). 01/1982; 5(3):129-34.
Source: PubMed

ABSTRACT The conventional total contact suction AK prosthesis presents several disadvantages, such as difficulty in wearing the socket in a sitting position, difficulty in obtaining a favourable disposition of the stump soft tissues in the socket and difficulty in avoiding stump perspiration problems. In an attempt to solve these disadvantages, a new AK prosthesis with a thermoplastic double socket was developed at the Tokyo Metropolitan Rehabilitation Center for the Physically and Mentally Handicapped. The double socket is composed of an external socket attached to the lower parts and a detachable internal socket, and appears to solve all the disadvantages of the conventional prosthesis. This prosthesis is called the TC prosthesis, and abbreviation for the Tokyo Metropolitan Rehabilitation Center. The first model of this prosthesis, (TC-1) has a metal valve. A new rubber sheet valve was developed to solve several disadvantages of the metal valve in the TC-2 prosthesis. Since November 1978 the TC-1 has been fitted to 295 AK amputees, including 9 bilateral AK amputees, and since March 1980, 145 AK amputees have received the TC-2, including 6 bilateral amputees. Satisfactory results have been obtained with both prostheses.

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    ABSTRACT: OBJECTIVE: To compare a seal-in liner with the common suction socket with regards to patient satisfaction and problems experienced with the prosthesis. DESIGN: Retrospective survey. SETTING: Janbazan Medical and Engineering Research Center (JMERC), Tehran, Iran and Department of Biomedical Engineering, Faculty of Engineering, University Malaya, Malaysia. PARTICIPANTS: Ninety males with traumatic transfemoral amputation who had used both suspension systems participated in the study. Two questionnaires were completed by each subject to evaluate their satisfaction and problems experienced with the two suspension systems. Interventions: Two prosthetic suspension systems: a seal-in liner and common suction socket. Main Outcome Measures:Satisfaction and problems with the prosthetic suspension systems were analyzed in terms of fitting, donning and doffing, sitting, walking, stair negotiation, appearance, sweating, wounds, pain, irritation, pistoning, edema, smell, sound and durability. RESULTS: The study revealed that the respondents were more satisfied with the seal-in liner with regards to fitting, sitting, donning and doffing. Overall satisfaction increased with the use of the seal-in liner compared to the suction socket (P<0.05). However, satisfaction with the prosthesis showed no significant differences in terms of walking (flat and uneven surfaces), appearance and stair negotiation. Furthermore, problems experienced differed significantly between the two suspension systems (P<0.05). Sweating, wounds, pain, irritation, pistoning, edema, smell and sound were less problematic with the use of the seal-in liner; whereas durability was significantly better with the suction socket. CONCLUSIONS: The results of the survey suggest that satisfaction and problems with prosthetic suspension in persons with transfemoral amputation can be improved with the seal-in liner compared to the suction socket provided that the durability of the liner is enhanced.
    Archives of physical medicine and rehabilitation 12/2012; · 2.18 Impact Factor

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