What is the primary difference between PMax and Precice 2.2 nails?

The primary difference is weight-bearing capacity. The PMax nail features reinforced internal mechanics and materials designed to allow patients to support weight-bearing during active distraction significantly earlier, whereas the Precice 2.2 nail requires strict weight restrictions and reliance on a wheelchair or crutches.

How does the PMax nail extend during stature surgery?

The PMax nail contains an internal magnetic motor actuated externally by an External Remote Control (ERC). When held over the limb, the ERC rotates the internal magnet, gradually lengthening the nail at controlled increments (typically 1 mm per day split into multiple sessions).

When can I begin walking after PMax stature surgery?

Under the direction of Dr. Dror Paley and the specialized Paley Institute physical therapy team, patients with PMax nails typically begin assisted walking and weight-bearing exercises as early as Week 2 post-op.

PMax Stature Surgery & Weight-Bearing Technology | Paley Institute Stature Center

Transforming the Stature Patient Experience

PMax is engineered for weight-bearing as tolerated as early as 2 weeks after surgery.

What are the Benefits of PMax?

Faster Weight Bearing

A thicker titanium wall allows weight bearing as tolerated as soon as two weeks after surgery.

Less Pain

Early mobility helps keep muscles stretched, greatly reducing the discomfort from “tightness”.

Fewer Complications

Reduces risks of common complications associated with long periods of inactivity.

What Is PMax?

PMax is our newest-generation internal lengthening nail — a fully implantable, magnetically driven device that gradually lengthens bone from the inside. There are no external pins, rods, or visible hardware. You control the lengthening process yourself with a handheld External Remote Control (ERC), which activates a small internal magnet that drives the lengthening mechanism in precise, quarter-millimeter increments.

Designed in Coordination with Dr. Paley

Dr. Paley has been directly involved in the design and refinement of the PRECICE Max (PMax) nail system since its earliest generations. PMax is custom-designed to his protocols to improve the patient experience throughout the stature lengthening process.