title: Revision Arthroplasty for the Management of Stiffness After Primary TKA.
abstract: The aim of this study was to evaluate the results of revision surgery for the treatment of stiffness after total knee arthroplasty (TKA).
  
  
  
  An IRB-approved retrospective review was performed to identify patients who were revised due to stiffness after a primary TKA. Patients were included when at least one major component had to be revised due to stiffness after primary TKA with a minimum follow-up of 2 years. Patients with history of previous infection and those treated with isolated polyethylene exchange were excluded.
  
  
  
  The study group involved 42 knees. Mean follow-up was 47 months (24-109 months). Mean flexion contracture improved from 9.7° (0°-35°) preoperatively to 2.3° (0°-20°) postoperatively (P < .00). Mean flexion improved from 81.5° (10°-125°) preoperatively to 94.3° (15°-140°) postoperatively (P .02). Mean range of motion improved from 72.0° preoperatively (10°-100°) to 92° (15°-140°) postoperatively (P < .00). Mean Knee Society knee scores improved from 43.9 points (15-67) preoperatively to 72.0 points (50-93) at latest follow-up and mean Knee Society Function scores improved from 48.7 (35-80) preoperatively to 70.1 points (30-90) postoperatively. Pain improved in 73% of the patients.
  
  
  
  Revision surgery appears to be a reasonable option for patients presenting with pain and stiffness after TKA. However, the benefits may be modest as the outcomes still do not approach those achieved with primary TKA.
authors.affiliation: Department of Orthopedic Surgery, Lenox Hill Hospital, New York, New York.
authors.forename: Joaquin
authors.initials: J
authors.lastname: Moya-Angeler
authors.affiliation: Department of Orthopedic Surgery, Lenox Hill Hospital, New York, New York.
authors.forename: Marcel A
authors.initials: MA
authors.lastname: Bas
authors.affiliation: Department of Orthopedic Surgery, Lenox Hill Hospital, New York, New York.
authors.forename: H John
authors.initials: HJ
authors.lastname: Cooper
authors.affiliation: Department of Orthopedic Surgery, Lenox Hill Hospital, New York, New York.
authors.forename: Matthew S
authors.initials: MS
authors.lastname: Hepinstall
authors.affiliation: Department of Orthopedic Surgery, Lenox Hill Hospital, New York, New York.
authors.forename: Jose A
authors.initials: JA
authors.lastname: Rodriguez
authors.affiliation: Department of Orthopedic Surgery, Lenox Hill Hospital, New York, New York.
authors.forename: Giles R
authors.initials: GR
authors.lastname: Scuderi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000209:etiology*; D011184:Postoperative Period; D016059:Range of Motion, Articular; D012086:Reoperation / Q000706:statistics & numerical data*; D012189:Retrospective Studies; D016896:Treatment Outcome
keywords: arthrofibrosis; primary TKA; results; revision arthroplasty; stiffness