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Hypothenar Hammer Syndrome
Aka: Hypothenar Hammer Syndrome
- See Also
- Overuse Syndromes of the Hand and Wrist
- Ulnar Tunnel Syndrome
- Mechanism
- Occlusion of ulnar artery at the wrist
- Secondary to thrombosis of ulnar artery
- Due to repetitive Trauma to ulnar hand
- Example: hand is used as a hammer
- Symptoms
- Hypothenar pain and pallor
- Hypothenar Paresthesias
- Affected digits are cool
- Signs
- Localized tenderness at hypothenar prominence
- Abnormal Allen Test
- Imaging
- Wrist XRay with Carpal Tunnel view
- Assess for Carpal BoneFracture (esp. pisiform Fracture, hook of hamate Fracture)
- Differential Diagnosis
- Ulnar Tunnel Syndrome
- Carpal BoneFracture at ulnar aspect (associated with Ulnar Nerve injury)
- Pisiform Fracture
- Hook of Hamate Fracture
- Management
- Eliminate precipitating factors
- Surgical resection of thrombosed section of vessel
- Indicated for persistent symptoms