PGR – implant for reconstruction of the knee joint block of the femur

Description

MPL/LPL – Medial/Lateral Patellar Luxation
Patellar luxation is a common orthopedic condition, predominantly affecting dogs (though cats may also be affected). It occurs more frequently in small-breed dogs, although any breed and size can be affected. The age of clinical onset varies: symptoms often begin in puppies or young adults, but older dogs are not exempt. Pets with a “hunched” posture are more prone to patellar luxation. A typical sign is “skipping” lameness — intermittent limping that resolves within a few steps. Some animals present persistent lameness, while others with bilateral luxation exhibit a stiff, awkward gait with incomplete knee extension.

Advantages of Custom PGR Implants for Femoral Trochlear Groove Reconstruction:

Precision
Surgical guides significantly reduce operative time and enable accurate implant placement. Each patient-specific PGR implant is developed based on CT imaging, accounting for the animal’s unique anatomical structure.

Tailored Design
Every PGR implant is custom-designed and manufactured to meet the specific anatomical and biomechanical needs of the patient, with variable shapes, sizes, and configurations.

Minimally Invasive Approach
The customized design of PGR implants allows for surgical intervention with minimal disruption to surrounding tissues, supporting faster healing and reducing the risk of complications.

Premium Materials
PGR implants are 3D-printed from titanium alloy (Ti6Al4V Grade 23 ELI), ensuring high strength, corrosion resistance, and excellent biocompatibility. The polished surface of the implant provides optimal patellar tracking across the groove, which is crucial for successful function and longevity.

Personalized Treatment
Custom implants enable precise execution of the surgical plan, offering the best possible outcome tailored to each individual patient’s condition.

Workflow: From Consultation to Postoperative Recovery

1. Consultation
   Schedule an appointment with a certified veterinary orthopedic surgeon to evaluate your pet and determine the appropriate treatment strategy.

2. CT Imaging
   A computed tomography (CT) scan provides detailed insight into the joint and creates a 3D model for implant design tailored to the pet’s anatomy.

3. Implant Design Process

   • CT segmentation and in-depth anatomical analysis

   • Collaboration between surgeon and biomedical engineer to discuss case-specific considerations

   • 3D modeling of the implant and surgical guides

   • Surgeon approval of the final designs

   • 3D printing of anatomical models, implant prototype, and guides using polymer for verification

   • Final review and approval by the surgeon

4. Manufacturing

   • Implant production using 3D-printed titanium alloy (Ti6Al4V Grade 23 ELI)

   • Surgical guides printed from NextDent SG photopolymer (CE-certified, Class I medical device, steam-sterilizable via autoclave)

   • Final quality check of implants and guides before shipment to the surgical team

5. Surgery
   A highly skilled orthopedic surgeon performs the procedure using the patient-specific implant and guides.

6. Rehabilitation
   Postoperative recovery may include physiotherapy to restore full stifle joint function.

This innovative approach helps improve your pet’s quality of life by restoring natural knee mechanics and ensuring long-term joint health.