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Function after through-knee compared with below-knee and above-knee amputation.

E Hagberg1, O K Berlin, P Renström

  • 1Department of Orthopaedics, Sahlgren Hospital, University of Göthenburg, Sweden.

Prosthetics and Orthotics International
|December 1, 1992
PubMed
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Prosthetic use and function significantly decrease with higher amputation levels. Through-knee amputation is a viable alternative to above-knee amputation when below-knee amputation isn't possible.

Area of Science:

  • Orthopedics
  • Rehabilitation Medicine
  • Prosthetics Engineering

Background:

  • Prosthetic limb replacement is common for amputees.
  • Assessing prosthetic function across different amputation levels is crucial for rehabilitation outcomes.

Purpose of the Study:

  • To quantitatively and qualitatively evaluate prosthetic function in amputees with below-knee (BK), through-knee (TK), and above-knee (AK) amputations.
  • To determine the impact of amputation level on prosthetic usability and daily use.

Main Methods:

  • A questionnaire-based assessment was used for 59 amputees (24 BK, 17 TK, 18 AK).
  • Evaluated parameters included ease of donning the prosthesis and daily usage frequency.
  • Assessed functional usefulness and instances of non-usage.

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Main Results:

  • Prosthetic donning was successful in 100% of BK, 70% of TK, and 56% of AK amputees.
  • Daily prosthesis use was reported by 96% of BK, 76% of TK, and 50% of AK amputees.
  • Higher amputation levels correlated with significantly lower rehabilitation degrees and prosthesis usefulness, with 39% of AK amputees finding their prosthesis unusable.

Conclusions:

  • Prosthetic function and rehabilitation success significantly decrease with increasing amputation level (BK > TK > AK).
  • Through-knee (TK) amputation should be strongly considered as a preferred alternative to above-knee (AK) amputation when below-knee (BK) amputation is not feasible.
  • Optimizing prosthetic design and surgical techniques for TK amputations can improve patient outcomes.