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Thomas S Thornhill - One of the best experts on this subject based on the ideXlab platform.
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unicompartmental Knee Arthroplasty
Journal of The American Academy of Orthopaedic Surgeons, 2008Co-Authors: Todd Borus, Thomas S ThornhillAbstract:AbstractRecent increased interest in less invasive surgical techniques has led to a concurrent resurgence in unicompartmental Knee Arthroplasty. The procedure has evolved significantly over the past three decades. Proponents of unicompartmental Knee Arthroplasty cite as advantages lower perioperativ
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Revision total Knee Arthroplasty after failed unicompartmental Knee Arthroplasty or high tibial osteotomy.
Clinical Orthopaedics and Related Research, 1995Co-Authors: Thomas J. Gill, Emil H. Schemitsch, Gregory W. Brick, Thomas S ThornhillAbstract:A retrospective matched-pair comparative analysis was done between 30 total Knee arthroplasties following failed high tibial osteotomies and 30 total Knee arthroplasties following failed unicompartmental Knee arthroplasties. The groups were matched according to age, gender, type of prosthesis, primary disease, and length of followup. A minimum followup of 2 years was required for inclusion in the study, and the average followup was 3.8 years (range, 2-9 years). The Knee Society Knee Score for the high tibial osteotomy group was significantly higher than that for the unicompartmental Arthroplasty group. More osseous reconstructions were required in the unicompartmental revisions. Difficulty with exposure was not significantly greater in the osteotomy group. Rates of component loosening were not significantly different between the groups. A failed unicompartmental Knee Arthroplasty and a failed high tibial osteotomy can be revised successfully to a total Knee Arthroplasty. The results confirm that revisions after unicondylar Arthroplasty and high tibial osteotomy are technically demanding. In this series, the results of total Knee Arthroplasty following unicompartmental Knee Arthroplasty approached but did not equal those obtained after high tibial osteotomy.
Todd Borus - One of the best experts on this subject based on the ideXlab platform.
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unicompartmental Knee Arthroplasty
Journal of The American Academy of Orthopaedic Surgeons, 2008Co-Authors: Todd Borus, Thomas S ThornhillAbstract:AbstractRecent increased interest in less invasive surgical techniques has led to a concurrent resurgence in unicompartmental Knee Arthroplasty. The procedure has evolved significantly over the past three decades. Proponents of unicompartmental Knee Arthroplasty cite as advantages lower perioperativ
Andrew Quoc Dutton - One of the best experts on this subject based on the ideXlab platform.
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Computer-assisted minimally invasive total Knee Arthroplasty compared with standard total Knee Arthroplasty. A prospective, randomized study.
Journal of Bone and Joint Surgery American Volume, 2020Co-Authors: Andrew Quoc Dutton, Kuang-ying Yang, Ngai-nung Lo, Kui-un Chia, Hwei-chi ChongAbstract:BACKGROUND: There is little information on the feasibility of computer navigation when using a minimally invasive approach for total Knee Arthroplasty, during which the anatomic landmarks for registration may be obscured. The purpose of the present study was to determine the radiographic accuracy of this technique and to compare the rate of functional recovery between patients who underwent computer-assisted minimally invasive Arthroplasty and those who underwent conventional total Knee Arthroplasty. METHODS: One hundred and eight consecutive patients were randomized to undergo computer-assisted minimally invasive total Knee Arthroplasty or conventional total Knee Arthroplasty. Perioperative pain management was standardized. The clinical parameters, long-leg radiographs, and functional assessment scores were evaluated for six months postoperatively. RESULTS: Patients who underwent computer-assisted minimally invasive total Knee Arthroplasty had a significantly longer operative time (by a mean of twenty-four minutes) and a significantly shorter inpatient stay (3.3 compared with 4.5 days) in comparison with those who underwent conventional Arthroplasty (p
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Computer-Assisted Minimally Invasive Total Knee Arthroplasty Compared with Standard Total Knee Arthroplasty Surgical Technique
Journal of Bone and Joint Surgery American Volume, 2009Co-Authors: Andrew Quoc Dutton, Seng Jin YeoAbstract:BACKGROUND: There is little information on the feasibility of computer navigation when using a minimally invasive approach for total Knee Arthroplasty, during which the anatomic landmarks for registration may be obscured. The purpose of the present study was to determine the radiographic accuracy of this technique and to compare the rate of functional recovery between patients who underwent computer-assisted minimally invasive Arthroplasty and those who underwent conventional total Knee Arthroplasty. METHODS: One hundred and eight consecutive patients were randomized to undergo computer-assisted minimally invasive total Knee Arthroplasty or conventional total Knee Arthroplasty. Perioperative pain management was standardized. The clinical parameters, long-leg radiographs, and functional assessment scores were evaluated for six months postoperatively. RESULTS: Patients who underwent computer-assisted minimally invasive total Knee Arthroplasty had a significantly longer operative time (by a mean of twenty-four minutes) and a significantly shorter inpatient stay (3.3 compared with 4.5 days) in comparison with those who underwent conventional Arthroplasty (p 0.001). Significantly more patients in the computer-assisted minimally invasive total Knee Arthroplasty group were able to walk independently for more than thirty minutes at one month (p = 0.04). The percentage of patients with a coronal tibiofemoral angle within ±3° of the ideal was 92% for the computer-assisted minimally invasive total Knee Arthroplasty group, compared with 68% for the conventional total Knee Arthroplasty group (p = 0.003). CONCLUSIONS: Although specific clinical parameters reflect an early increased rate of functional recovery in association with computer-assisted minimally invasive total Knee Arthroplasty within the first postoperative month, the main advantage of this technique over conventional total Knee Arthroplasty is improved postoperative radiographic alignment without increased short-term complications. LEVEL OF EVIDENCE: Therapeutic Level I. See Instructions to Authors for a complete description of levels of evidence.
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Computer-assisted minimally invasive total Knee Arthroplasty compared with standard total Knee Arthroplasty. Surgical technique.
The Journal of bone and joint surgery. American volume, 2009Co-Authors: Andrew Quoc DuttonAbstract:There is little information on the feasibility of computer navigation when using a minimally invasive approach for total Knee Arthroplasty, during which the anatomic landmarks for registration may be obscured. The purpose of the present study was to determine the radiographic accuracy of this technique and to compare the rate of functional recovery between patients who underwent computer-assisted minimally invasive Arthroplasty and those who underwent conventional total Knee Arthroplasty. One hundred and eight consecutive patients were randomized to undergo computer-assisted minimally invasive total Knee Arthroplasty or conventional total Knee Arthroplasty. Perioperative pain management was standardized. The clinical parameters, long-leg radiographs, and functional assessment scores were evaluated for six months postoperatively. Patients who underwent computer-assisted minimally invasive total Knee Arthroplasty had a significantly longer operative time (by a mean of twenty-four minutes) and a significantly shorter inpatient stay (3.3 compared with 4.5 days) in comparison with those who underwent conventional Arthroplasty (p 0.001). Significantly more patients in the computer-assisted minimally invasive total Knee Arthroplasty group were able to walk independently for more than thirty minutes at one month (p = 0.04). The percentage of patients with a coronal tibiofemoral angle within +/-3 degrees of the ideal was 92% for the computer-assisted minimally invasive total Knee Arthroplasty group, compared with 68% for the conventional total Knee Arthroplasty group (p = 0.003). Although specific clinical parameters reflect an early increased rate of functional recovery in association with computer-assisted minimally invasive total Knee Arthroplasty within the first postoperative month, the main advantage of this technique over conventional total Knee Arthroplasty is improved postoperative radiographic alignment without increased short-term complications.
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Computer-assisted minimally invasive total Knee Arthroplasty compared with standard total Knee Arthroplasty. A prospective, randomized study.
Journal of Bone and Joint Surgery American Volume, 2008Co-Authors: Andrew Quoc Dutton, Seng Jin Yeo, Kuang-ying Yang, Ngai-nung Lo, Kui-un Chia, Hwei-chi ChongAbstract:Background: There is little information on the feasibility of computer navigation when using a minimally invasive approach for total Knee Arthroplasty, during which the anatomic landmarks for registration may be obscured. The purpose of the present study was to determine the radiographic accuracy of this technique and to compare the rate of functional recovery between patients who underwent computer-assisted minimally invasive Arthroplasty and those who underwent conventional total Knee Arthroplasty. Methods: One hundred and eight consecutive patients were randomized to undergo computer-assisted minimally invasive total Knee Arthroplasty or conventional total Knee Arthroplasty. Perioperative pain management was standardized. The clinical parameters, long-leg radiographs, and functional assessment scores were evaluated for six months postoperatively. Results: Patients who underwent computer-assisted minimally invasive total Knee Arthroplasty had a significantly longer operative time (by a mean of twenty-four minutes) and a significantly shorter inpatient stay (3.3 compared with 4.5 days) in comparison with those who underwent conventional Arthroplasty (p ≤ 0.001). Significantly more patients in the computer-assisted minimally invasive total Knee Arthroplasty group were able to walk independently for more than thirty minutes at one month (p = 0.04). The percentage of patients with a coronal tibiofemoral angle within ±3° of the ideal was 92% for the computer-assisted minimally invasive total Knee Arthroplasty group, compared with 68% for the conventional total Knee Arthroplasty group (p = 0.003). Conclusions: Although specific clinical parameters reflect an early increased rate of functional recovery in association with computer-assisted minimally invasive total Knee Arthroplasty within the first postoperative month, the main advantage of this technique over conventional total Knee Arthroplasty is improved postoperative radiographic alignment without increased short-term complications.
Martin W Roche - One of the best experts on this subject based on the ideXlab platform.
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Minimally invasive robotic-arm-guided unicompartmental Knee Arthroplasty.
The Journal of Bone and Joint Surgery, 2009Co-Authors: Michael A. Conditt, Martin W RocheAbstract:Unicompartmental Knee Arthroplasty is an underused procedure in orthopaedic surgery due to its level of difficulty and the unpredictability of results, which can be related to component malalignment. New robotic arm technology has been developed to assist the surgeon in accurately and reproducibly preparing the femur and the tibia for a minimally invasive bone-sparing unicompartmental Knee Arthroplasty. This new procedure provides comprehensive three-dimensional planning of unicompartmental Knee Arthroplasty components, including soft-tissue balancing, followed by accurate resection of the femur and the tibia. This paper reviews this new technology.
Andrew D. Pearle - One of the best experts on this subject based on the ideXlab platform.
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Unicompartmental Knee Arthroplasty versus total Knee Arthroplasty: Which type of artificial joint do patients forget?
Knee Surgery Sports Traumatology Arthroscopy, 2015Co-Authors: Hendrik A. Zuiderbaan, Jelle P. Van Der List, Saker Khamaisy, Danyal H. Nawabi, Ran Thein, C. Ishmael, Sophia Paul, Andrew D. PearleAbstract:Purpose During recent years, there has been an intensive growth of interest in the patient’s perception of functional outcome. The Forgotten Joint Score (FJS) is a recently introduced score that measures joint awareness of patients who have undergone Knee Arthroplasty and is less limited by ceiling effects. The aim of this study was to compare the FJS between patients who undergo medial unicompartmental Knee Arthroplasty (UKA) and patients who undergo total Knee Arthroplasty (TKA) 1 and 2 years post-operatively.
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Effect of age on cost-effectiveness of unicompartmental Knee Arthroplasty compared with total Knee Arthroplasty in the U.S.
Journal of Bone and Joint Surgery American Volume, 2015Co-Authors: Hassan M.k. Ghomrawi, Ashley A. Eggman, Andrew D. PearleAbstract:Unicompartmental Knee Arthroplasty, which replaces only the Knee compartment affected by osteoarthritis, is an alternative to total Knee Arthroplasty, a procedure that replaces the entire Knee joint. Unicompartmental Knee Arthroplasty preserves bone tissue that will be valuable if prosthetic revision is needed1,2. In addition, unicompartmental Knee Arthroplasty has fewer complications, requires less rehabilitation, and may provide a better range of motion and superior function compared with total Knee Arthroplasty3. Because it is associated with a higher risk of revision compared with that of total Knee Arthroplasty, unicompartmental Knee Arthroplasty remains a controversial procedure that may be underutilized. Retrospective studies indicate that 12.0% to 21.0% of patients who undergo total Knee Arthroplasty were candidates for unicompartmental Knee Arthroplasty4, whereas
