PMID- 37271235
OWN - NLM
STAT- MEDLINE
DCOM- 20231023
LR  - 20231024
IS  - 1532-8406 (Electronic)
IS  - 0883-5403 (Linking)
VI  - 38
IP  - 11
DP  - 2023 Nov
TI  - Impact of Alignment and Alignment Correction on Outcomes Following Robotic Medial 
      Unicompartmental Knee Arthroplasty.
PG  - 2282-2287
LID - S0883-5403(23)00570-3 [pii]
LID - 10.1016/j.arth.2023.05.046 [doi]
AB  - BACKGROUND: The purpose of this study was to retrospectively examine the 
      relationship between preoperative and postoperative alignment in robotic 
      unicompartmental knee arthroplasty (UKA) and postoperative patient-reported 
      outcome measures. METHODS: A retrospective review of 374 patients who underwent 
      robotic-assisted UKA was conducted. Patient demographics, history, and 
      preoperative and postoperative Knee Injury and Osteoarthritis Outcome Score for 
      Joint Replacement (KOOS-JR) scores were obtained via chart review. Average 
      follow-up period was 2.4 years (range: 0.4 to 4.5 years) to chart review and 9.5 
      months (range: 6 to 48 months) to latest KOOS-JR. Preoperative and postoperative 
      robotically-measured knee alignment was obtained from operative reports. 
      Incidence of conversion to total knee arthroplasty (TKA) was determined by review 
      of a health information exchange tool. RESULTS: Multivariate regressions showed 
      no statistically significant relationship between preoperative alignment, 
      postoperative alignment, or degrees of alignment correction and change in KOOS-JR 
      score or achievement of KOOS-JR minimal clinically important difference (MCID) (P 
      > .05). Patients who had >8 degrees of postoperative varus alignment had on 
      average a 20% lower achievement of KOOS-JR MCID compared to patients who had <8 
      degrees of postoperative varus alignment; however, this difference was not 
      statistically significant (P > .05). There were 3 patients who required 
      conversion to TKA in the follow-up period, with no significant relationship to 
      alignment variables (P > .05). CONCLUSION: There was no significant difference in 
      KOOS-JR change for those patients who had a larger or smaller degree of deformity 
      correction, and correction did not predict MCID achievement.
CI  - Copyright (c) 2023 Elsevier Inc. All rights reserved.
FAU - Rahman, Tahsin M
AU  - Rahman TM
AD  - Department of Orthopaedic Surgery, Henry Ford Hospital, Detroit, Michigan. 
      Electronic address: https://twitter.com/trahman1994wsu.
FAU - Hansen, Logan
AU  - Hansen L
AD  - Department of Orthopaedic Surgery, Henry Ford Hospital, Detroit, Michigan.
FAU - Blackmond, Nicholas
AU  - Blackmond N
AD  - Department of Orthopaedic Surgery, Henry Ford Hospital, Detroit, Michigan.
FAU - Sandhu, Amar
AU  - Sandhu A
AD  - Department of Orthopaedic Surgery, Henry Ford Hospital, Detroit, Michigan.
FAU - Shaw, Jonathan H
AU  - Shaw JH
AD  - Department of Orthopaedic Surgery, Henry Ford Hospital, Detroit, Michigan.
FAU - Davis, Jason J
AU  - Davis JJ
AD  - Department of Orthopaedic Surgery, Henry Ford Hospital, Detroit, Michigan.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20230602
PL  - United States
TA  - J Arthroplasty
JT  - The Journal of arthroplasty
JID - 8703515
SB  - IM
MH  - Humans
MH  - *Arthroplasty, Replacement, Knee
MH  - Retrospective Studies
MH  - *Robotic Surgical Procedures
MH  - *Osteoarthritis, Knee/surgery
MH  - Knee Joint/surgery
MH  - Treatment Outcome
OTO - NOTNLM
OT  - correction
OT  - deformity
OT  - patient-reported outcome measures
OT  - survivorship
OT  - unicompartmental knee arthroplasty
EDAT- 2023/06/05 00:41
MHDA- 2023/10/23 00:43
CRDT- 2023/06/04 19:24
PHST- 2022/12/24 00:00 [received]
PHST- 2023/05/15 00:00 [revised]
PHST- 2023/05/20 00:00 [accepted]
PHST- 2023/10/23 00:43 [medline]
PHST- 2023/06/05 00:41 [pubmed]
PHST- 2023/06/04 19:24 [entrez]
AID - S0883-5403(23)00570-3 [pii]
AID - 10.1016/j.arth.2023.05.046 [doi]
PST - ppublish
SO  - J Arthroplasty. 2023 Nov;38(11):2282-2287. doi: 10.1016/j.arth.2023.05.046. Epub 
      2023 Jun 2.