Lengthening and Deformity Correction of a Femur Malunion Using an EBI Monolateral Frame

Patient: Nancy


Nancy, a psychology professor, wrote this editorial to the NY times.

Nancy is a 55 y/o woman who broke her leg as a child. She developed shortening and deformity. The valgus (knock-knee deformity) was causing arthritis and pain in her knee and the shortening caused back pain.

An osteotomy and acute correction of the femur was performed through a percutaneous approach. Gradual lengthening (4 cm) was accomplished with an EBI frame over 2 months to optimize leg lengths. Note the early new bone formation in the gap.


The frame was removed after 6 months after complete bone healing.

Weightbearing and exercise were encouraged throughout the treatment.


Nancy, a psychology professor, wrote this editorial to the NY times.


view animation of this proceedure