# US 2016/0256283 A1 · Systems and methods for providing a femoral component with a modified posterior condyle

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- Number: US 2016/0256283 A1
- Document ID: US20160256283A1
- Status: Published application
- Kind: A1
- Application number: 15/156,050
- Filed: 2016-05-16
- Published: 2016-09-08
- Earliest claimed: 2007-08-27
- Inventors: Kent M. Samuelson; Connor E. Samuelson
- Web page: https://patentgrep.com/patent/US20160256283A1

## CPC

- A61F 2/46: Special tools for implanting artificial joints
- A61B 17/155: {Cutting femur}
- A61B 17/1675: {for the knee}
- A61F 2/30734: {Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect}
- A61F 2/30756: {Cartilage endoprostheses (A61F2/3603 takes precedence)}
- A61F 2/30767: {Special external or bone-contacting surface, e.g. coating for improving bone ingrowth}
- A61F 2/38: for elbows or knees
- A61F 2/3859: {Femoral components}
- A61F 2/3886: {for stabilising knees against anterior or lateral dislocations}
- A61F 2/389: {Tibial components (A61F2/3868 takes precedence)}
- A61F 2/30965: {Reinforcing the prosthesis by embedding particles or fibres during moulding or dipping}
- A61F 2/3877: {Patellae or trochleae}
- A61F 2002/30116: {partial circles, i.e. circular segments}
- A61F 2002/30245: {Partial spheres}
- A61F 2002/30604: {modular}
- A61F 2002/30607: {Kits of prosthetic parts to be assembled in various combinations for forming different prostheses}
- A61F 2002/30934: {Special articulating surfaces}
- A61F 2002/3863: {Condyles fitted on an anchored base}
- A61F 2002/3895: {unicompartimental}
- A61F 2230/0006: circular
- A61F 2230/0071: spherical
- A61F 2310/00011: Metals or alloys
- A61F 2310/00179: Ceramics or ceramic-like structures
- A61F 2310/00329: Glasses, e.g. bioglass
- A61F 2310/00353: Bone cement, e.g. polymethylmethacrylate or PMMA
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Systems and methods for providing deeper knee flexion capabilities. In some instances, such systems and methods include a knee prosthesis that includes a femoral component for replacing at least a portion of a distal end of a femur. In some cases, the femoral component has a posterior condyle that is configured to articulate against a tibial articular surface. In such cases, an articular surface at a proximal portion of the posterior condyle is sized and shaped to extend at least half of an antero-posterior distance between a most posterior portion of the posterior condyle and a plane that is a continuation of a distal one fourth to one third of a posterior cortex of a femoral shaft of the femur. Other implementations are also discussed.

## Claims

### Claim 1

A knee prosthesis comprising:
a femoral component for replacing at least a portion of a distal end of a femur, the femoral component comprising:
at least a portion of a posterior condyle,
an interior surface configured to face a resected surface of the distal end of the femur, and
a projection providing an articular surface at a proximal portion of the posterior condyle.