Distal Femur Fracture Above a High Below-The-Knee Amputation Managed With Lateral Locking Plate: A Case Report

Area of Science:

• Orthopedic surgery
• Trauma management
• Prosthetics and orthotics

Background:

• Complex femur fractures pose significant challenges, especially in patients with lower-limb amputations.
• Managing fractures near prosthetic interfaces requires careful consideration to preserve function.

Purpose of the Study:

• To evaluate the efficacy of a lateral locking plate for distal femur fractures in a patient with a below-the-knee amputation.
• To assess the impact of distal femur fixation on prosthetic ambulation and overall functional status.

Main Methods:

• A case report detailing the management of a complex distal femur fracture in a patient with a below-the-knee amputation.
• Surgical fixation using a lateral locking plate for the distal femur.
• Long-term follow-up (16 months) assessing functional recovery and prosthetic compatibility.

Main Results:

• The patient achieved return to pre-trauma functional status by 7 months post-surgery.
• The lateral locking plate fixation did not impede the use of a prosthesis.
• Successful management of a periprosthetic femur fracture in an amputee.

Conclusions:

• Distal femur fracture fixation with a lateral locking plate is a viable option for below-the-knee amputees.
• This surgical technique can preserve prosthetic function and restore patient mobility.
• Consideration of lateral locking plates for periprosthetic femur fractures is recommended to maintain prosthetic usage.