Unicompartmental Knee Arthroplasty with Use of Novel Patient-Specific Resurfacing Implants and...
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Transcript of Unicompartmental Knee Arthroplasty with Use of Novel Patient-Specific Resurfacing Implants and...
Unicompartmental Knee Arthroplasty with Use of Novel Patient-Specific Resurfacing Implants and Personalized
Jigs
by Wolfgang Fitz
J Bone Joint Surg AmVolume 91(Supplement 1):69-76
February 1, 2009
©2009 by The Journal of Bone and Joint Surgery, Inc.
Implants and instrumentation are derived from computed tomographic scans and full-length radiographs of the limb.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
Instrumentation and implants are delivered in one sterile box.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
The patient-specific navigation and balancing block matches the tibial surface and comes in 1-mm increments.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
The cutting block is attached to the extramedullary alignment guide and, while protecting the medial collateral ligament with a retractor, the horizontal tibial cut is completed.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
After complete removal of all cartilage and osteophytes, the femoral iJig is placed on the condyle.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
Final femoral preparation: preparation of the anterior recess; rounding of the edge, transitioning to the flat posterior cut; and drilling multiple small holes for cement interdigitation.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
Trial components are inserted for a final assessment.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.
An individualized tibial template is used to complete the tibial preparation.
Wolfgang Fitz J Bone Joint Surg Am 2009;91:69-76
©2009 by The Journal of Bone and Joint Surgery, Inc.