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Ulnar Nerve Injury and Froment's Test: A Case Report
1Emergency Medicine, University of Stellenbosch, Cape Town, ZAF.
Cureus
|January 14, 2020
Summary
Peripheral nerve injuries, like isolated ulnar nerve transection, are often missed. Early recognition using clinical tests such as Froment
Area of Science:
- Trauma Surgery
- Neurology
- Orthopedic Surgery
Background:
- Traumatic peripheral nerve injuries can be subtle and easily overlooked in emergency settings.
- A high index of suspicion is crucial for diagnosing extremity injuries in the emergency department.
Observation:
- A case report of a 28-year-old male with penetrating forearm trauma resulting in an isolated ulnar nerve transection is presented.
- Clinical examination findings and relevant anatomy are discussed, focusing on the specific injury pattern.
Findings:
- Froment's test is highlighted as a valuable clinical adjunct for identifying ulnar nerve injuries.
- The test demonstrates disruption of thumb motor innervation, evidenced by compensatory hyperflexion due to intact median nerve function.
Implications:
- Early and accurate diagnosis of peripheral nerve injuries, including ulnar nerve transection, is vital.
- Prompt referral and appropriate management can significantly improve patient outcomes and functional recovery.
