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NexGen® Complete Knee Solution MIS Intramedullary Instrumentation
Successful total knee arthroplasty depends in part on re-establishment of
normal lower extremity alignment, proper implant design and orientation,
secure implant fixation, and adequate soft tissue balancing and stability.
The NexGen Complete Knee Solution System and the Zimmer Minimally
Invasive Solutions™ (MIS™) Intramedullary (IM) Knee Instrument System are
designed to help the surgeon accomplish these goals by combing optimal
alignment accuracy with a simple, straight-forward technique. Furthermore,
the MIS IM Instrumentation is designed to:
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Accommodate bone cuts for total knee arthroplasty through a smaller skin
incision.
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Provide accurate, reproducible, bone cuts.
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Minimize soft tissue disruption.
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Allow adjustment and control of alignment prior to performing any bone
cuts.
Accurate Referencing and External Rotation
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The external Rotation Alignment Guide is designed to assist the surgeon
with establishing proper alignment and external rotation. There are four
degree options available for setting external rotation of the femoral
component in relation to the non-deformed posterior condyles. If
desired, the surgeon can decide the angle based on anatomic landmarks of
the distal femoral bone.
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After a preliminary anterior cut, the Distal Femoral Cutting Guide is
attached to the IM Alignment Guide to make the distal femoral cut. The
appropriate angle is selected as determined by preoperative radiographs.
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Precise Femoral Resection
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The MIS Femoral Finishing Guide allows the physician to make the
posterior cut, the chamfer cuts, the anterior finishing cut, the
preparation for the trochlear recess and ped holes quickly and
accurately with one cutting guide.
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