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Abstract Number: 402

Preoperative Physical Function Influences on Stair Climbing Ability 1 Month after Total Knee Arthroplasty

Jinseok Kim1 and Bo Ryun Kim2, 1Department of Medicine, Jeju National University Hospital, University of Jeju School of Medicine, Jeju, Korea, Republic of (South), 2Jeju National University Hospital, University of Jeju School of Medicine, Jeju, Korea, Republic of (South)

Meeting: 2018 ACR/ARHP Annual Meeting

Keywords: functions, Knee, osteoarthritis and rehabilitation, Total Knee Arthroplasty (TKA)

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Session Information

Date: Sunday, October 21, 2018

Session Title: Orthopedics, Low Back Pain and Rehabilitation Poster – ACR/ARHP

Session Type: ACR/ARHP Combined Abstract Session

Session Time: 9:00AM-11:00AM

Background/Purpose:

This study was undertaken to identify preoperative physical performance factors predictive of stair climbing ability 1 month following total knee arthroplasty.

Methods:

In this prospective cohort study, we assessed a total of 84 patients (8 males and 76 females; average age 72.0 ± 6.0 years) who underwent a primary unilateral total knee arthroplasty (TKA). Before and 1 month after TKA, patients completed physical performance tests including stair climbing test (SCT), 6-minute walk test(6MWT), timed up and go test (TUG), isometric knee flexor and extensor strength of the surgical and non-surgical knees, and instrumental gait analysis for spatiotemporal parameters. Self-reported disease-specific physical function measured by using the Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) and self –reported quality of life measured by using Euro QOL five dimensions (EQ-5D) questionnaire.

Results:

In the bivariate analyses, the postoperative SCT-ascent had a significant positive correlation with the SCT-ascent (r=0.29, p=0.01), SCT-descent (r=0.28, p=0.01), TUG (r=0.37, p<0.01), preoperative age (r=0.25, p=0.02), and a significant negative correlation with the preoperative 6MWT (r= -0.33, p<0.01), peak torque (PT) extensor of surgical knee (r=-0.29, p=0.01), PT flexor of surgical knee (r=-0.26, p=0.02), PT extensor of the non-surgical knee (r=-0.26, p=0.02), PT flexor of the nonsurgical knee(r=-0.25, p=0.02). The postoperative SCT-descent had a significant positive correlation with the SCT-ascent (r=0.28 p=0.01), SCT-descent (r=0.40, p<0.01), TUG (r=0.38, p<0.01), preoperative age (r=0.27, p=0.01), WOMAC function (r=0.30, p<0.01), and a significant negative correlation with 6-MWT (r=-0.33, p<0.01), PT extensor of surgical knee (r=-0.23 p=0.04), PT flexor of surgical knee (r=-0.24, p=0.03), PT extensor of the nonsurgical knee (r=-0.25, p=0.03), PT flexor of the nonsurgical knee(r=-0.23, p=0.03). In the linear regression analyses, the postoperative SCT-ascent had a significant positive correlation with the preoperative TUG (ß=0.28, p<0.01), PT extensor of surgical knee (ß=-0.23, p=0.03) and the postoperative SCT-descent had a significant positive correlation with preoperative SCT-descent (r=0.28, p=0.01), and the age (ß=0.20, p=0.04).

Conclusion:

This study demonstrated that preoperative physical function influenced on postoperative stair climbing ability 1month after TKA. Using variables easily measured before surgery, it may be possible to predict with good accuracy for postoperative stair climbing ability. In addition, these results could be of importance in determining variable preoperative rehabilitation strategies to improve stair climbing ability, especially focusing on balance, endurance and strengthening exercises.


Disclosure: J. Kim, None; B. R. Kim, None.

To cite this abstract in AMA style:

Kim J, Kim BR. Preoperative Physical Function Influences on Stair Climbing Ability 1 Month after Total Knee Arthroplasty [abstract]. Arthritis Rheumatol. 2018; 70 (suppl 9). https://acrabstracts.org/abstract/preoperative-physical-function-influences-on-stair-climbing-ability-1-month-after-total-knee-arthroplasty/. Accessed May 29, 2023.
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