Knee arthrodesis using combined intramedullary rod and plate fixation.

Intramedullary arthrodesis of the knee is a satisfactory method for treating difficult salvage cases of infected arthroplasty, bone loss, and severe osteoporosis. In eight cases, a medial compression plate was routinely used for complete fixation. Union occurred in all cases, including two proximal tibial segmental allografts. Five previously infected cases were healed at follow-up examination (average, six to 44 months). Complications included proximal rod prominence, partial peroneal nerve palsy, recurrent sepsis in one case, and tibial shaft perforation on nail insertion. Seven of the eight patients used some form of walking aid for extended ambulation. Leg length was generally 1.5-2.5 cm shorter than the opposite limb.