Knee Joint Rescue in a Traumatic Amputation With Coverage by a Fillet-Free Flap From the Amputated Leg

Traumatic amputation is a severe injury that requires urgent surgical care. A fillet-free flap from the amputated limb is the most conservative way to ensure proper coverage of the stump when replantation is not possible. We report the case of a male patient who suffered from a traumatic limb amputation in a motorcycle accident. A free fillet flap from the posterior compartment of the leg carrying the posterior tibial pedicle, the soleus muscle, and skin tissue harvested from the amputated limb was performed to cover the amputation stump and thus allow preservation of the knee joint. In our case report, the patient conserved almost maximal knee joint range of motion (130°). He regained the ability to walk only two months after the initial trauma. Prosthetic fitting occurred quickly and without any particular issues throughout the process. Regarding quality of life, after one year, our patient had a five-level EQ-5D version (EQ-5D-5L) score of 21,221, and his 36-Item Short Form Survey (SF-36) score was divided between the five components in 85 points in physical functioning, 100 points in role limitations due to physical health, 100 points in role limitations due to emotional problems, 50 points in energy/fatigue, 68 points in emotional well-being, 75 points in social functioning, 45 points in pain, and 95 points in general health. This technique helped provide good coverage of the stump while preserving a functional knee joint, allowing for effective prosthetic fitting in the future and therefore optimizing our patient’s quality of life.