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Device to intra-operatively measure joint stability for total knee arthroplasty

Maack, Thomas L.

Abstract Details

2008, Master of Science, Ohio State University, Mechanical Engineering.

Despite the recognized importance of proper soft tissue balancing during a total knee arthroplasty, instability remains a major cause for revision surgery. During surgery, indicators such as joint space are used to help achieve a balanced knee, and a subjective manual check of stability is performed after trial components are in place. This contrasts with biomechanics researchers who use complex devices to apply known loads and measure resultant motions to find stability. However, none of these devices are appropriate for use during a total knee arthroplasty to provide surgeons with immediate feedback.

I created a novel device to help surgeons apply known loads, intra-operatively, for varus/valgus, internal/external, and anterior/posterior stability tests. The device employs a load cell and surgical navigation system. Validation of the device showed high accuracy and error standard deviations of no greater than 2.50 Nm varus/valgus moment, 1.38 Nm internal/external moment, and 5.45 N anterior/posterior force.

Robert Siston (Advisor)
Alan Litsky (Advisor)
John Bolte (Committee Member)
Henry Busby (Committee Member)
248 p.

Recommended Citations

Citations

  • Maack, T. L. (2008). Device to intra-operatively measure joint stability for total knee arthroplasty [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1213366766

    APA Style (7th edition)

  • Maack, Thomas. Device to intra-operatively measure joint stability for total knee arthroplasty. 2008. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1213366766.

    MLA Style (8th edition)

  • Maack, Thomas. "Device to intra-operatively measure joint stability for total knee arthroplasty." Master's thesis, Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1213366766

    Chicago Manual of Style (17th edition)