Amputation after failure or complication of total knee arthroplasty: prevalence, etiology and functional outcomes.

Objective: Identify the etiology and incidence, as well to assess functional outcomes of patients, undergoing lower limb amputation after failure or complication of total knee arthroplasty. These patients were treated at the Center for Knee Surgery at the National Institute of Traumatology and Orthopedics (INTO), during the period of January 2001 to December 2010.

Methods: The patients were interviewed and their charts were retrospectively analyzed to evaluate their functional outcome.