A failure envelope approach to characterizing strength of an amputated femur with a bone-anchored percutaneous implant.

Bone-anchored percutaneous implants, commonly referred to as osseointegrated implants, are gaining popularity as an alternative to sockets for attaching a prosthetic limb to an amputated femur. While these implants have several advantages, femoral fractures are relatively common in these patients, occurring in 6.3% of femurs within 4 years.