A peripheral ulnar nerve injury at the wrist could be orthotically managed with a:

A peripheral ulnar nerve injury at the wrist primarily affects the small finger and part of the ring finger, leading to issues with motor control and sensation. The goal of orthotic management in this situation is to support the hand while allowing for optimal positioning and function of the remaining fingers.

Using a hand orthosis (HO) with an MP (metacarpophalangeal) extension stop is particularly beneficial because it allows for the stabilized alignment of fingers during activities while preventing unwanted motion at the MP joints of the involved fingers. This design prevents hyperextension and helps maintain a functional position, especially since the ulnar nerve innervates the intrinsic muscles that aid in finger flexion and abduction.

The MP extension stop focuses on maintaining the integrity of the grasping function and minimizes the risk of clawing or weakness in the affected fingers, allowing the individual to maximize the use of remaining functional abilities. Therefore, an HO configured with an MP extension stop specifically addresses the needs resulting from ulnar nerve dysfunction, making it a suitable choice for managing this type of injury effectively.