[Callotasis for segmental bone defects in the femur]

Area of Science:

• Orthopedic surgery
• Pediatric orthopedics
• Regenerative medicine

Context:

• Pathological segmental defects in pediatric femurs often result from conditions like suppurative osteomyelitis.
• Traditional treatments may have limitations in restoring bone length and function.
• External fixation and intramedullary callotasis offer potential solutions for complex bone defects.

Purpose:

• To evaluate the clinical efficacy of callotasis in treating pathological segmental defects of the child femur.
• To assess bone healing, length restoration, and complication rates associated with callotasis.

Summary:

• Thirty-nine pediatric patients with femoral segmental defects due to suppurative osteomyelitis underwent treatment using external fixation or intramedullary callotasis.
• A mean lengthening of 49% was achieved, with a healing index of 30 days/cm and a non-union healing time of 134 days.
• All patients demonstrated successful bone healing and length restoration without recurrent osteomyelitis or fractures during a 13-57 month follow-up.

Impact:

• Callotasis presents a reliable, simple, and highly adaptable surgical technique for managing complex femoral segmental defects in children.
• This method facilitates significant bone regeneration and functional recovery, improving outcomes for pediatric patients.
• The study supports callotasis as a valuable treatment option, potentially reducing the need for more invasive procedures.