Robot-Assisted Unicompartmental Knee Arthroplasty

The outcomes of unicompartmental knee arthroplasties (UKAs) have demonstrated inconsistent long-term survival. We report the first clinical series of UKA using a semiactive robotic system for the implantation of an inlay unicondylar knee arthroplasty. Ten patients were selected for this study. Preop...

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Bibliographic Details
Published in:The Journal of arthroplasty Vol. 25; no. 2; pp. 230 - 237
Main Authors: Pearle, Andrew D., O'Loughlin, Padhraig F., Kendoff, Daniel O.
Format: Journal Article
Language:English
Published: United States Elsevier Inc 01.02.2010
Subjects:
Aged
Aged, 80 and over
Arthroplasty, Replacement, Knee - instrumentation
Arthroplasty, Replacement, Knee - methods
Biomechanical Phenomena
Female
haptic guidance system
Humans
Knee Joint - diagnostic imaging
Knee Joint - physiology
Knee Joint - surgery
Knee Prosthesis
Male
medial osteoarthritis
Middle Aged
Orthopedics
Osteoarthritis, Knee - surgery
Range of Motion, Articular - physiology
Retrospective Studies
robot assisted
Robotics - instrumentation
Robotics - methods
Surgery, Computer-Assisted - instrumentation
Surgery, Computer-Assisted - methods
Time Factors
Tomography, X-Ray Computed
Treatment Outcome
uniknee arthroplasty
medial osteoarthritis
haptic guidance system
robot assisted
uniknee arthroplasty
ISSN:0883-5403, 1532-8406, 1532-8406
Online Access:Get full text
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Summary:The outcomes of unicompartmental knee arthroplasties (UKAs) have demonstrated inconsistent long-term survival. We report the first clinical series of UKA using a semiactive robotic system for the implantation of an inlay unicondylar knee arthroplasty. Ten patients were selected for this study. Preoperative mechanical leg alignment values ranged from 0.3° varus to 9.8° varus. A haptic guidance system was used; a detailed description is given in the manuscript. The setup time for the robot was 41 minutes; intraoperative registration process, 7.5 minutes (6-13 minutes); skin incision, 8 cm; robot-assisted burring, 34.8 minutes (18-50 minutes); mean tourniquet time, 87.4 minutes (68-113 minutes); and overall operation time, 132 minutes (118-152 minutes). The planned and intraoperative tibiofemoral angle was within 1°. The postoperative long leg axis radiographs were within 1.6°. Haptic guidance in combination with a navigation module allows for precise planning and execution of both inlay components in UKA.
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ISSN:0883-5403
1532-8406
1532-8406
DOI:10.1016/j.arth.2008.09.024