Press-Fit Bone-Anchored Prosthesis for Patients with Short Transfemoral Amputation

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Rehabilitation Medicine

Background:

• High transfemoral amputations with short residual limbs often result in poor outcomes with traditional socket prostheses due to instability and discomfort.
• Bone-anchored prostheses (BAP) offer a stable, direct skeletal connection, potentially improving function and quality of life.

Purpose of the Study:

• To evaluate the effectiveness of osseointegration (OI) implant surgery in patients with short residual limbs following transfemoral amputation.
• To assess improvements in prosthesis wear time, mobility, and quality of life.

Main Methods:

• A prospective study followed 16 patients with short residual limbs who received a gamma-type osseointegration implant.
• Patient outcomes were measured using the Questionnaire for Persons with a Transfemoral Amputation (QTFA) prosthetic use and global scores at 1-year follow-up.

Main Results:

• Significant improvements in prosthesis wear time and quality of life were observed from baseline to 1-year follow-up.
• Fifty percent of patients who did not use a prosthesis at baseline showed substantial quality-of-life improvements.

Conclusions:

• Osseointegration implant surgery is an acceptable treatment option for select patients with short residual limbs after transfemoral amputation.
• The procedure demonstrates short-term efficacy in enhancing prosthesis use and patient well-being.