Range of motion (ROM™) hinges feature an adjustable joint angle and allow a variable range of motion as selected by the surgeon. Each size contains a multi-toothed locking nut that allows the surgeon to lock-in any desired starting position or “normal standing angle.” The opposite end features a central flat that determines the locked position and two adjacent arcs that allow for a chosen degree of motion. The ability to progressively increase the allotted range of motion during the healing period is unique to the ROM™ hinge and can be utilized or ignored depending on patient management requirements.
ROM™ hinges should be reserved for challenging situations that demand controlled motion or intermittent therapy. They should not be considered for most routine transarticular fixation frames.