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Ulnar diaphyseal stress injuries: a case series
1Department of Radiology, University of Florida College of Medicine, PO Box 100374, 1600 SW Archer Rd, Gainesville, FL 32611, USA.
Clinical Radiology
|March 31, 2022
Summary
Ulnar diaphyseal stress injuries (UDSIs) are uncommon, often affecting young adults involved in sports or occupational activities. These injuries are linked to the flexor digitorum profundus (FDP) muscle attachment, suggesting a role in their development.
Area of Science:
- Orthopedics
- Sports Medicine
- Radiology
Background:
- Ulnar diaphyseal stress injuries (UDSIs) are rare and not well-characterized.
- Understanding their demographics, clinical presentation, and etiology is crucial for diagnosis and management.
Purpose of the Study:
- To describe the characteristics of UDSIs in a case series.
- To propose a unifying mechanism for UDSIs based on imaging findings.
Main Methods:
- Retrospective analysis of seven patients with UDSIs.
- Data collected included demographics, clinical context, imaging findings, and management.
- Injuries were analyzed for location and association with the flexor digitorum profundus (FDP) origin.
Main Results:
- Seven UDSIs were identified in patients aged 19 ± 4.4 years (3 females, 4 males).
- All injuries occurred in the ulnar diaphysis, specifically at the proximal-mid, mid, or mid-distal junction.
- All cases involved the ulnar origin of the FDP and were managed conservatively.
Conclusions:
- UDSIs are associated with occupational or sports activities.
- The ulnar origin of the FDP plays a significant role in the development of UDSIs due to forces exerted on the bone.
