[Disarticulation of the knee. Surgical technic--prosthesis fitting]

Area of Science:

• Orthopedic Surgery
• Prosthetics and Artificial Limbs
• Biomechanical Engineering

Context:

• Knee joint disarticulation surgery presents challenges in achieving optimal prosthetic fit and aesthetic outcomes.
• Traditional techniques can result in scar placement that interferes with prosthesis wear and function.
• Improving the stability and appearance of artificial limbs following amputation is a key goal in reconstructive surgery.

Purpose:

• To describe a modified knee joint disarticulation technique that minimizes scar interference with prosthesis use.
• To evaluate the prosthetic rotational stability and aesthetic results of the modified surgical approach.
• To outline a post-operative rehabilitation protocol utilizing advanced alignment and prosthetic ankle components.

Summary:

• A modified knee disarticulation technique involves creating medial and lateral flaps, resulting in a posterior, longitudinal scar.
• Surgical abrasion of the condyles and re-covering with the joint capsule enhance prosthetic rotational stability and limb appearance.
• Post-operative rehabilitation employs a 3D alignment jig and a multi-degree-of-freedom prosthetic ankle to facilitate the swing phase.

Impact:

• The described technique offers improved prosthetic rotational stability and a more aesthetically pleasing artificial limb.
• The posterior scar placement avoids contact areas with the prosthesis, reducing potential complications.
• The specialized rehabilitation protocol aids in optimizing gait and function for individuals with knee disarticulation amputations.