February 14, 2008
Institutional Review Board, Hospital for Special Surgery
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Helene Pavlov, MD, FACR
Patrick Lee, MD
Daniel Kendoff, MD
Joseph Lipman, MD, PhD
Alex B. Maderazo MD, MBA
This is a Pilot Study of 10 patients approximately ages 50-80
Bilateral long leg hip to ankle examination and non-weight bearing cross-sectional imaging (CT) of the affected limb will be preformed on the hip, knee and ankle according to the attached protocol as standard of care currently used for surgical planning. Weight-bearing cross sectional imaging of the hip, knee and ankle of the affected extremity will be performed using the Philips MultiDiagnostic Eleva with 3 D imaging following a similar CT protocol. These methods will be compared for diagnostic information and for variations in angulation and alignment accuracy in surgical planning..
Inclusion criteria: Patients who are candidates for unicondylar knee resurfacing with surgical robotics (Makoplasty). Candidates for unicondylar knee resurfacing will have the following:
Medial compartment radiographic DJD
Medial compartment symptoms of one or more of the following:
Medial sided pain, standing pain, difficulty ambulating)
Preservation of lateral and patellofemoral cartilage (on MRI or by arthroscopy)
Less than 10 degree flexion contracture
Varus deformity correctable to neutral alignment and be between the ages of 50-80
Exclusion criteria: Patients with hardware that may obscure imaging of the lower extremity. Unable to stand without assistance. Patients unable to give
informed consent. Patients who are pregnant. Patients whom are under the age of 18.
Andrew D. Pearle,MD
pearlea@hss.edu
212.774.2878
Helene Pavlov,MD,FACR
pavlovh@hss.edu
212.606.1665
Joseph Lipman, MD,PhD
lipmanj@hss.edu
212.606.1420
Alex Maderazo MD,MBA
maderazoa@hss.edu
212.774.3053