Prognostic factors that predict failure of manipulation under anesthesia for the stiff total knee arthroplasty: A systematic review.
Academic Article
Overview
abstract
Purpose: Prognostic factors associated with Manipulation under anesthesia (MUA) failure remain unknown. Methods: A systematic review of the literature was performed to identify studies that reported prognostic factors associated with MUA for postoperative stiffness. Results: 7 studies analyzing prognostic factors associated with MUA outcomes were included. Several studies note pre-MUA ROM to be a significant prognostic factor affecting post-MUA ROM at final follow-up. Knees with <70° of flexion pre-MUA had less final flexion arc than those with >70°. Conclusions: The strongest prognostic factor for decreased ROM after MUA is severe pre-MUA stiffness.