| In a typical Colles' fracture, the WristJack is capable of restoring and maintaining palmar tilt without compromising hand and median nerve function. The WristJack is designed with gear driven adjustments that take advantage of functionally intact soft tissue hinges to achieve ligamentotaxis in multiple planes, or MULTIPLANAR™ Ligamentotaxis. Palmar translation of the hand on the forearm tightens an intact dorsal periosteum and restores palmar tilt. Radial and ulnar translation forces address appositional alignment and radial tilt of the distal fragment.
The WristJack's independent gear mechanisms allow independent adjustment of: • palmar tilt
• radial length
• radial inclination
• rotational alignment In addition, the wrist lock feature allows the wrist to be placed in extension to help avoid both finger stiffness and carpal tunnel syndrome. Wrist position is independent of fracture reduction.
Other fixators simply maintain a manually manipulated reduction and attempts to improve one plane of fracture alignment risks losing alignment in the other planes. In contrast, the Agee WristJack is installed on pins placed in the hand and forearm after gentle manipulation obtains gross alignment of the fracture. Reduction is then accomplished through selective incremental adjustment of the gear mechanisms. Changing the alignment in one plane does not jeopardize previously obtained reductions in the other planes. The wrist may then be positioned in the position of function. Post-operatively, the Agee WristJack allows "fine tuning" of fracture alignment in the clinic, gently and without pain. The Agee WristJack Fracture Reduction System arrives with all instrumentation needed to apply the device, including a surgeon's manual, pins, drill guides and a WristJacket to cover the device during fracture healing. | | |
