Moving forward
in partial knee


MOTO Patello-Femoral Joint (PFJ) is a compartment-specific implant conceived to restore a painless patellar movement throughout the whole articular range of motion when the osteoarthritis is localized in the femoral trochlea region. Together with MOTO Medial and MOTO Lateral, MOTO PFJ is part of Medacta’s MOTO Partial Knee System, which provides for surgeons a complete portfolio to manage any type of unicompartmental knee arthroplasty.  

MOTO PFJ features a completely guided surgical procedure that avoids the need for any free-hand step and preserves the femoral intramedullary canal. These unique features, together with an optimized implant design, would provide the surgeon a reliable and reproducible system for treating the patellofemoral joint osteoarthritis as well.


MOTO PFJ features an onlay anterior design that immediately captures the patella during the knee extension, preventing patellar subluxation and instability. Distally, the implant has an inlay design to provide the smoothest transition from mid-flexion to complete flexion, thereby decreasing the risk of overstuffing the patella and limiting the load on the PFJ component in complete flexion, where patellar load stress is usually the most elevated. 

A dedicated resurfacing patella component, thin and fully congruent with the PFJ trochlea, completes the MOTO PFJ system to further reduce trochlear anterior pressure and compartment overstuffing.

Each component of the MOTO Partial Knee System was designed with the following clear goals:

  • accommodate the individual anatomy in order to achieve optimal coverage and fit.
  • provide correct and individualized balance and alignment at every step of the procedure, with the potential of decreasing the incidence of loosening and progression of the disease, which is the main reason for revision of unicompartmental knee replacement.

To achieve improvements in patient outcomes, surgeons can rely on the following unique and superior MOTO System features:



Anatomic side-specific design
6 sizes for Right side paired with 6 sizes for Left side 
Material: Cobalt-Chrome (Co-Cr-Mo ISO 5832-4)


Circular symmetric design
6 sizes with increasing diameters
2 groups of dome thickness: 7.5mm for size 1, 2, 3; 8.5mm for size 4, 5, 6.
Material: UHMWPE (ISO5834-2) or vitamin E highly-crosslinked UHMWPE (E-CROSS)



Extensive anthropometric research was performed on selected cases from our internal database containing now more than 100,000 CT and MRI scans of knees from all countries to validate the MOTO PFJ implant design.

  • Anatomic bone preserving design featuring an onlay anterior design and an inlay distal design. The anterior and distal aspects, together with the Q-angle set at 9° and lateralized wide trochlea region, work together to improve the patella tracking and possibly avoid any overstuffing or subluxation of the patella.
  • Wide size range and side-specific design to optimize the implant coverage without compromising on its fit thanks to a deep anthropometric research and a careful design validation process.


Minimally invasive and reproducible surgical technique, where all the steps are well-guided by the intuitive nature of the instruments.

  • The anterior cut is guided by means of a stylus and a spiked rod, thereby avoiding intramedullary canal violation. Fine-tuning of resection thickness, flexion and int/ext rotation can be tailored to each patient's needs.
  • Distal finishing and box preparation are performed by means of dedicated cutting guides allowing for easy and reproducible surgical steps.
  • A bone preserving patella resurfacing can be performed to optimize the placement of the dedicated MOTO Patella implant.


MOTO offers you MORE to deliver the best outcomes for your patients.

  • A dedicated and unique Education Program created around the MOTO System provides top level medical education and continuous support to healthcare professionals.
  • Expert and passionate surgeons share their experience on how to leverage MOTO’s unique design features, along with the instruments and surgical technique, to treat each individual’s anatomy.
  • Educational courses with live surgeries, wet lab hands-on sessions and direct interaction with Partial Knee Mentors to explore philosophy, indications and advantages of this procedure.
  • Educational path tailored to every surgeon’s needs, with continuous support and proctoring assistance.
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