[The endo-exo prosthesis for patients with a problematic amputation stump]

Area of Science:

• Orthopedic surgery
• Biomedical engineering
• Rehabilitation medicine

Background:

• Conventional prosthetic limbs utilize sockets, often causing discomfort, instability, and skin issues for amputees.
• The rigid nature of traditional sockets contrasts with the soft body, leading to poor fit and associated problems like pain and pressure sores.

Observation:

• A novel osseointegrated, intramedullary prosthesis with a bone-like surface was implanted in two trauma patients (one transfemoral, one lower leg amputation).
• The prosthesis bypasses the need for a socket, integrating directly with the bone for a more secure attachment.

Findings:

• Both patients demonstrated excellent functional outcomes over one year post-implantation.
• No infectious complications were observed, indicating a safe and effective integration process.

Implications:

• Osseointegrated prostheses represent a promising solution for patients with problematic amputation stumps who cannot use conventional socket prostheses.
• This technology may significantly improve the quality of life and mobility for selected lower limb amputees.