Your web browser is out of date. For the best experience on Zimmer websites please upgrade to the latest version of Internet Explorer, Chrome, or Firefox.

Zimmer, Inc.

Zimmer® Gender Solutions™ Patello-Femoral Joint (PFJ)

Product Description

The Zimmer® Gender Solutions ® Patello-Femoral Joint (PFJ) System is designed to provide an early intervention option for patients with unresolved patello-femoral pain. The Gender Solutions PFJ incorporates science based design features and offers a precise surgical technique through the use of a reproducible milling system.

Anatomic Restoration

Zimmer was the first orthopedic company to recognize that when it comes to knees, men and women are different. The Gender Solutions PFJ System addresses the unmet clinical need for patello-femoral implants that more accurately address the differences between the shapes of male and female femurs.

Modified Anterior Flange

  • A thinner anterior flange is designed to help avoid overstuffing and overhang.

Increased Trochlear Groove Angle

  • An increased trochlear groove angle accommodates the documented difference in the Q-angle of the patellar tracks of male and female knees.

Comprehensive Sizing

  • The Zimmer Gender Solutions PFJ includes five left/right specific trochlear components. Gender Solutions female design characteristics are applied to smaller sizes (1-4), while the larger size implant is designed to match standard NexGen® Knee.

Reproducibility

Freehand instrumentation has long been the downfall of patello-femoral arthroplasty. The proprietary milling system of the Gender Solutions PFJ offers an unprecedented advancement in the preparation of the distal femoral trochlea, providing a reproducible surgical technique.  

  • Eliminates the need for freehand preparation
  • Provides accurate cartilage and bone preparation, delivering smooth patella transitions and correct depth, contour, and implant fit
  • Ensures that the system may be easily converted to a Zimmer Total Knee, if necessary in the future

Versatility

The Gender Solutions PFJ System may be used in combination with the Zimmer ® Unicompartmental High Flex Knee as an early intervention option for patients with bi-compartmental arthritis.

  • Patello-femoral and unicompartmental components provide 35 different sizing combinations to accommodate varying patient anatomies
  • Independently oriented components allow for precise alignment and rotation without compromise

Gender Solutions Technology

Zimmer Gender Solutions Implants are revolutionary in the way they compensate for the most important differences between women’s and men’s knees. It isn’t strictly a matter of size; it’s a matter of shape.

Proprietary Guided Milling System

Freehand instrumentation has long been the downfall of patello-femoral arthroplasty. The proprietary milling system of the Gender Solutions PFJ offers an unprecedented advancement in the preparation of the distal femoral trochlea, providing a reproducible surgical technique.

Minimally Invasive Solutions (MIS)

The Gender Solutions Patello-Femoral System instrumentation and implants are compatible with MIS approaches, which are designed to facilitate smaller incisions, less tissue trauma, and shorter hospital stays.

Indications

These devices are indicated for patients with:

  • Osteoarthritis, traumatic arthritis, polyarthritis, and/or severe chondrocalcinosis of the patello-femoral joint
  • The salvage of previously failed surgical attempts (e.g., arthroscopy, lateral release, cartilage transplantation)
  • History of patellar dislocation or patellar fracture
  • Dysplasia-induced degeneration

This device is intended for cemented use only

Contraindications

Contraindications include:

  • Previous history of infection in the affected joint and/or local/systemic infection that may affect the prosthetic joint
  • Insufficient bone stock
  • Insufficient menisci and/or ligament structures
  • Skeletal immaturity
  • Neuropathic arthropathy
  • Severe instability, maltracking, malalignment of the patella, patello-femoral and/or tibio-femoral joints

Patello-femoral arthroplasty is contraindicated in patients who have rheumatoid arthritis (RA) and an ulcer of the skin or a history of recurrent breakdown of the skin because their risk of postoperative infection is greater. RA patients using steroids may also have increased risk of infection. Late infections in RA patients have been reported 24+ months postoperative.