2. Dart Thrower’s Motion Orthosis
This chapter will introduce the viewer to a dynamic wrist mobilization orthosis used pre-
and post-operatively for clients recovering from a scapho-lunate ligament sprain and/or following a scapho-lunate ligament repair. The Dart Thrower’s motion is the functional motion of the wrist, incorporating wrist extension and radial deviation moving towards wrist flexion and ulnar deviation. The Dart thrower’s motion appears to limit extensive motion at the proximal carpal row, (specifically between the scaphoid and adjacent lunate bones) and therefore preserves the scapho -lunate ligament while allowing for restricted, yet protected, wrist motion. The Dart Thrower’s motion orthosis is a dynamic orthosis that allows this pattern of wrist extension with radial deviation moving towards wrist flexion with ulnar deviation. The dynamic orthotic fabrication techniques of making this complex orthosis in a simple way along with the relevant rehabilitation protocol will be covered. The chapter will highlight the pattern making process, fabrication steps, important guidelines for adding outriggers and checking the correct fit, and precautions for the use of dynamic orthoses.