1
Richard A Rosa, Vernon R Hartdegen, Eric A Stookey, Brian R Harris Jr, Robert M Fencl: Methods of minimally invasive unicompartmental knee replacement. Wright Medical Technology, November 28, 2006: US07141053 (271 worldwide citation)

A method of minimally invasive unicompartmental knee replacement includes accessing a knee through a minimal incision, forming a planar surface along a tibial plateau of the knee, forming a planar posterior surface along a posterior aspect of the corresponding femoral condyle, resurfacing a distal a ...


2
Richard A Rosa, Vernon R Hartdegen, Eric A Stookey, Brian R Harris Jr, Robert M Fencl: Instrumentation for minimally invasive unicompartmental knee replacement. Wright Medical Technology, June 13, 2006: US07060074 (257 worldwide citation)

Instrumentation for use in minimally invasive unicompartmental knee replacement includes a tibial cutting guide for establishing a planar surface along a tibial plateau and a tibial stylus having an anatomic contour for controlling the depth of the planar surface along the tibial plateau. The instru ...


3
Vernon R Hartdegen, Dean Hughes: Multi modular trialing system and instrumentation. Smith & Nephew, Kilpatrick Stockton, January 6, 2004: US06673114 (75 worldwide citation)

Methods, instrumentation and devices for humeral implant positioning, including an improved trialing system utilizing an adjustment instrument and orientation indicia.


4
David R Tuttle, Vernon R Hartdegen, Stephen E White, Robert M Fencl, Robert H Schmidt: Tibial knee prosthesis. Wright Medical Technology, August 28, 2007: US07261740 (48 worldwide citation)

A knee prosthetic including a tibial component defining medial and lateral concavities shaped to receive medial and lateral femoral condyles of the femur. The concavities have first portions for contact with the condyles during normal knee flexion and second portions for contact with the condyles du ...


5
Kian Ming, Vernon R Hartdegen: Drill guide assembly. Wright Medical Technology, Duane Morris, November 20, 2012: US08313492 (13 worldwide citation)

A drill guide assembly having an elongated body is configured with a first and second arm members extending from the elongated body. The second arm member is configured and adapted to be longitudinally movable along the elongated body towards and away from the first arm member for reducing fractured ...


6
Richard A Rosa, Vernon R Hartdegen, Eric A Stookey, Brian R Harris Jr, Robert M Fencl: Instrumentation for minimally invasive unicompartmental knee replacement. Wright Medical Technology, June 29, 2010: US07744601 (7 worldwide citation)

Instrumentation for surgically resurfacing a femoral condyle to receive a prosthetic femoral component in minimally invasive unicompartmental knee replacement surgery. The instrumentation includes a resurfacing guide for attachment to a femur and a rail member externally delineating an area of a fem ...


7
Charles L Nelson, Stephen R McDaniel, Vernon R Hartdegen Jr, Trung Ho Pham, Darryll Leonard Charles Fletcher, Nathan D Brown: Straight intramedullary fracture fixation devices and methods. Sonoma Orthopedic Products, Knobbe Martens Olson & Bear, February 24, 2015: US08961516 (3 worldwide citation)

A straight intramedullary bone fracture fixation device is provided with an elongate body having a longitudinal axis for deployment in a long bone, such as a clavicle. Methods of repairing a fracture of a bone are also disclosed. One such method comprises inserting a bone fixation device into an int ...


8
Charles L Nelson, Trung Ho Pham, Vernon R Hartdegen Jr, Nathan D Brown: Segmented intramedullary fracture fixation devices and methods. Sonoma Orthopedic Products, Knobbe Martens Olson & Bear, June 23, 2015: US09060820 (3 worldwide citation)

A segmented bone fixation device is provided with an elongate body having a longitudinal axis and having a first state in which at least a portion of the body is flexible and a second state in which the body is generally rigid. Methods of repairing a fracture of a bone are also disclosed. One such m ...


9
Robert M Fencl, J David Blaha, Vernon R Hartdegen, William J Maloney, Stephen E White: Reference mark adjustment mechanism for a femoral caliper and method of using the same. Wright Medical Technology, Womble Carlyle Sandridge & Rice PLLC, October 25, 2011: US08043294 (1 worldwide citation)

A femoral caliper having one or more anatomical referencing members for placement against portions of the femur, such as the anterior cortex and posterior portion of the femoral condyles, to measure the femur for sizing of the femoral component. A reference mark positioning guide of the femoral cali ...


10
Chad J Patterson, Gary W Lowery, Vernon R Hartdegen: Bone screw washer. Wright Medical Technology, Duane Morris, May 13, 2014: US08721694 (1 worldwide citation)

A washer for use with a bone screw in the reduction and fixation of bone fragments includes a frusto-conical body having a leading end, a trailing end, an exterior surface and an interior surface. A central bore defined by the interior surface for insertion of a bone screw extends longitudinally thr ...