The hypothenar eminence, located on the ulnar side of the palm, controls abduction and assists with flexion of the little finger. Infection of the hypothenar space is very uncommon. However, when the hypothenar space does become infected, prompt emergent attention involving drainage, irrigation and systemic antibiotics is essential for a positive outcome. Potential concerns include complete removal of necrotic tissue, the increased risk for infections with community-acquired methicillin-resistant Staphylococcus aureus (ca-MRSA) and the heath status of the patient.
Pathophysiology
Related Anatomy
Incidence and Related Conditions
Differential Diagnosis
Reproduced from the International statistical classification of diseases and related health problems, 10th revision, Fifth edition, 2016. Geneva, World Health Organization, 2016 https://apps.who.int/iris/handle/10665/246208
The typical patient is likely to have a history of a penetrating injury, fracture, or spread of infection from the midpalmar space. In the antibiotic era, patients with hypothenar space infections are likely to either have a neglected puncture wound infection, have diabetes, be immunocompromised and/or be a drug user. Early surgical and antibiotic treatment within the first 12-48 hours will be critical for a positive outcome.
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