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Related Concept Videos

Rotational Motion about a Fixed Axis01:26

Rotational Motion about a Fixed Axis

A rigid body's rotation around a fixed axis makes every point within it trace a circular path around a specific line or point. The term given to this type of spinning is defined by the angular position, symbolized by the angle θ. This angle is gauged from a static reference line to the revolving object. From this angular position, any variation is referred to as angular displacement, denoted by dθ. The extent of this displacement can be calculated in degrees, radians, or revolutions, where one...
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Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
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Principles of rotationplasty.

Sumit Kumar Gupta1, Nabil Alassaf, A Robertson Harrop

  • 1Department of Surgery, University of Calgary, Calgary, Canada.

The Journal of the American Academy of Orthopaedic Surgeons
|October 3, 2012
PubMed
Summary

Rotationplasty offers a limb-sparing solution for lower extremity bone deficiency, enabling the ankle to function as a knee. This procedure shows favorable functional outcomes and high patient satisfaction compared to amputation.

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Area of Science:

  • Orthopedic surgery
  • Reconstructive surgery
  • Biomedical engineering

Background:

  • Lower extremity bone deficiency presents significant challenges in limb salvage and reconstruction.
  • Traditional treatments like amputation have functional limitations and varying patient acceptance.
  • Rotationplasty is a specialized reconstructive technique for specific lower extremity bone deficiencies.

Purpose of the Study:

  • To evaluate the efficacy and patient outcomes of rotationplasty as a limb-sparing procedure.
  • To compare functional results and patient satisfaction of rotationplasty with above-knee amputation.
  • To identify the primary limitations and considerations for rotationplasty.

Main Methods:

  • Surgical technique involves intercalary resection and 180° rotation of the distal limb.
  • Ankle joint is adapted to function as a knee joint.
  • Patients are fitted with a modified below-knee prosthesis.
  • Gait analysis and functional outcome assessments were performed.

Main Results:

  • Rotationplasty demonstrated favorable gait analysis and functional outcomes compared to above-knee amputation.
  • Patient satisfaction rates were higher with rotationplasty than with other limb salvage procedures.
  • The primary drawback identified was patient acceptance of the limb's altered appearance.

Conclusions:

  • Rotationplasty is a viable limb-sparing option for lower extremity bone deficiency.
  • It offers significant functional advantages and high patient satisfaction.
  • Addressing aesthetic concerns is crucial for optimal patient acceptance of rotationplasty.