Medial three-finger drop in high-energy forearm trauma: An unrecognized peripheral nerve injury. A report of two cases

Absent active extension at metacarpophalangeal (MCP) joints of medial three fingers with intact extension of index finger and thumb following high energy forearm trauma due to recurrent branch of posterior interosseous nerve (RBPIN) injury has not been reported yet. The aim is to highlight an unreco...

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Bibliographic Details
Published in:Trauma case reports 2022-02, Vol.37, p.100579, Article 100579
Main Author: Gopalan, Balachandar
Format: Article
Language:English
Subjects:
Case Report
Forearm injury
Medial three-finger drop
Missed diagnosis
Partial posterior interosseous nerve palsy
Peripheral nerve injuries
Recurrent branch of posterior interosseous nerve
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Summary:Absent active extension at metacarpophalangeal (MCP) joints of medial three fingers with intact extension of index finger and thumb following high energy forearm trauma due to recurrent branch of posterior interosseous nerve (RBPIN) injury has not been reported yet. The aim is to highlight an unrecognized sequel of a commonly encountered forearm trauma in two patients who sustained fractures around the elbow and forearm. In the acute traumatic setting, medial three-finger drop due to RBPIN injury can be missed or misdiagnosed. This has medico-legal and prognostic implications.
ISSN:2352-6440
2352-6440
DOI:10.1016/j.tcr.2021.100579