An open socket technique for through-knee amputations in relation to skin problems of the stump: an explorative study

Objective: To compare the conventional socket for through-knee amputees with an open socket system for skin problems and other relevant items. Design: All data were collected during three visits to the prosthetic clinic. At the second visit the conventional socket was replaced by the open socket. The use of both socket types was evaluated with a questionnaire and stump inspection. Setting: The subjects were evaluated at the Rehabilitation Centre, St Maartenskliniek, Nijmegen, the Netherlands. Subjects: Twenty subjects with a unilateral through-knee amputation were included and 13 subjects had a trial with the open socket. Results: There is a significant decrease of hyperhydrosis when wearing the open socket, there is no significant decrease in skin irritation or ulcers. The open socket also gives more comfort in sitting position. Conclusion: A further trial is needed in a selected group of prosthesis users among through-knee amputees to establish the long-term acceptance and benefits of the prosthesis with an open socket.