Prognostic factors that predict failure of manipulation under anesthesia for the stiff total knee arthroplasty: A systematic review.

Authors :: Gu A
Michalak AJ
Cohen JS
Stepan JG
Almeida ND
McLawhorn AS
Sculco PK
Source :: Journal of orthopaedics [J Orthop] 2018 Aug 16; Vol. 15 (3), pp. 842-846. Date of Electronic Publication: 2018 Aug 16 (Print Publication: 2018).
Publication Year :: 2018
Abstract: Purpose: Prognostic factors associated with Manipulation under anesthesia (MUA) failure remain unknown.<br />Methods: A systematic review of the literature was performed to identify studies that reported prognostic factors associated with MUA for postoperative stiffness.<br />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°.<br />Conclusions: The strongest prognostic factor for decreased ROM after MUA is severe pre-MUA stiffness.

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