Isokinetic Strength Testing of Minimally Invasive Total Knee Arthroplasty Recovery

Abstract Fifty patients underwent isokinetic muscle strength testing before surgery and at 6 weeks, 3 months, 6 months, and 1 year after unilateral total knee arthroplasty using the minisubvastus surgical technique. Quadriceps muscle strength returned to preoperative levels by 3 months postoperative...

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Veröffentlicht in:The Journal of arthroplasty 2010-02, Vol.25 (2), p.274-279
Hauptverfasser: Schroer, William C., MD, Diesfeld, Paul J., PA-C, Reedy, Mary E., RN, LeMarr, Angela R., RN
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container_end_page 279
container_issue 2
container_start_page 274
container_title The Journal of arthroplasty
container_volume 25
creator Schroer, William C., MD
Diesfeld, Paul J., PA-C
Reedy, Mary E., RN
LeMarr, Angela R., RN
description Abstract Fifty patients underwent isokinetic muscle strength testing before surgery and at 6 weeks, 3 months, 6 months, and 1 year after unilateral total knee arthroplasty using the minisubvastus surgical technique. Quadriceps muscle strength returned to preoperative levels by 3 months postoperatively and was 17% stronger at 6 months and 30% stronger at 1 year than preoperative levels ( P < .05). At 1 year, the quadriceps strength of the involved knee was equivalent to that of the uninvolved knee ( P = .81). When the entire study population was subdivided by age, weight, sex, and the presence of arthritis in the uninvolved knee, each subgroup still had equivalent quadriceps strength between the involved and uninvolved knees. This prospective study demonstrated that the minisubvastus total knee arthroplasty technique led to a more rapid and more complete recovery of muscle strength than has been previously demonstrated after total knee arthroplasty with a medial parapatellar arthrotomy.
doi_str_mv 10.1016/j.arth.2008.09.017
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Quadriceps muscle strength returned to preoperative levels by 3 months postoperatively and was 17% stronger at 6 months and 30% stronger at 1 year than preoperative levels ( P &lt; .05). At 1 year, the quadriceps strength of the involved knee was equivalent to that of the uninvolved knee ( P = .81). When the entire study population was subdivided by age, weight, sex, and the presence of arthritis in the uninvolved knee, each subgroup still had equivalent quadriceps strength between the involved and uninvolved knees. 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source MEDLINE; Elsevier ScienceDirect Journals Complete
subjects Aged
Aged, 80 and over
Arthroplasty, Replacement, Knee - methods
Biomechanical Phenomena
Female
Follow-Up Studies
Humans
Kinetics
Knee Joint - physiology
Knee Joint - surgery
Male
Middle Aged
Minimally Invasive Surgical Procedures - methods
MIS TKA
Muscle Strength - physiology
Orthopedics
Prospective Studies
Quadriceps Muscle - physiology
quadriceps recovery
Range of Motion, Articular - physiology
Recovery of Function - physiology
strength testing
Torque
title Isokinetic Strength Testing of Minimally Invasive Total Knee Arthroplasty Recovery
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