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. 2022 Jun;46(6):1253-1279.
doi: 10.1007/s00264-022-05344-x. Epub 2022 Mar 18.

Treatment of arthrofibrosis and stiffness after total knee arthroplasty: an updated review of the literature

Amer Haffar  1 , Graham S Goh  1 , Yale A Fillingham  1 , Michael T Torchia  2 , Jess H Lonner  3
Affiliations

Treatment of arthrofibrosis and stiffness after total knee arthroplasty: an updated review of the literature

Amer Haffar et al. Int Orthop. 2022 Jun.

Abstract

Purpose: There is currently no consensus regarding the optimal treatment for stiffness following total knee arthroplasty (TKA). With the increased utilization of value-based models, it is important to determine the most effective treatments that will reduce the need for further intervention and additional expenditure. A systematic review was performed to compare the outcomes of manipulation under anaesthesia (MUA), arthroscopic lysis of adhesions (aLOA), and revision TKA (rTKA) for arthrofibrosis and stiffness following TKA.

Methods: PubMed and MEDLINE databases were reviewed for articles published through October 2020. Studies were included if they reported patient-reported outcome measures (PROMs) following MUA, aLOA, or rTKA. The primary endpoint was PROMs, while secondary outcomes included range of motion and the percentage of patients who pursued further treatment for stiffness.

Results: A total of 40 studies were included: 21 on rTKA, 7 on aLOA, and 14 on MUA. The mean or median post-operative arc ROM was > 90° in 6/20 (30%) rTKA, 5/7 (71%) aLOA, and 7/10 (70%) MUA studies. Post-operative Knee Society (KSS) clinical and functional scores were the greatest in patients who underwent MUA and aLOA. As many as 43% of rTKA patients required further care compared to 25% of aLOA and 17% of MUA patients.

Conclusion: Stiffness following TKA remains a challenging condition to treat. Nonetheless, current evidence suggests that patients who undergo rTKA have poorer clinical outcomes and a greater need for further treatment compared to patients who undergo MUA or aLOA.

Keywords: Arthrofibrosis; Arthroscopic lysis of adhesions; Complication; Manipulation under anesthesia; Outcomes; Range of motion; Revision total knee arthroplasty; Stiffness; Systematic review.

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