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Manipulation under Anesthesia for Stiffness after Total Knee Arthroplasty
Ju-Hyung Yoo1, Jin-Cheol Oh1, Hyun-Cheol Oh1
1Department of Orthopedic Surgery, National Health Insurance Corporation Ilsan Hospital, Goyang, Korea.
Knee Surgery & Related Research
|December 18, 2015
Summary
Manipulation under anesthesia (MUA) for total knee arthroplasty (TKA) stiffness is uncommon (0.5% incidence). Early MUA leads to satisfactory joint motion recovery, improving range of motion significantly.
Area of Science:
- Orthopedic Surgery
- Rehabilitation Medicine
Background:
- Stiffness is a potential complication following total knee arthroplasty (TKA).
- Manipulation under anesthesia (MUA) is an intervention to address TKA stiffness.
Purpose of the Study:
- To evaluate the incidence of MUA for TKA stiffness.
- To assess the degree of joint motion recovery after MUA.
Main Methods:
- Retrospective review of 4,449 TKAs (2,973 patients) performed between 2000 and 2014.
- Analysis of cases undergoing MUA for post-TKA stiffness, comparing conventional and minimally invasive procedures.
- Investigation of preoperative range of motion (ROM), timing of MUA, diagnosis, and ROM before and after MUA.
Main Results:
- The overall incidence of MUA for TKA stiffness was 0.5% (22 cases).
- Incidence was lower with minimally invasive TKA (0.4%) compared to conventional TKA (1.2%).
- MUA, performed 4.7 weeks post-TKA, resulted in an average ROM improvement of 49.9°, reaching 113.4° at long-term follow-up.
Conclusions:
- MUA is an effective procedure for improving range of motion in stiff total knee arthroplasty.
- Early MUA intervention after TKA is associated with satisfactory joint movement recovery.

