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Obturator internus muscle abscess caused by methicillin-resistant Staphylococcus aureus in an adult: A case report

Akinori Maeda1, Isaku Saku1, Shotaro Kanda1

  • 1Department of Orthopeadic Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan.

International Journal of Surgery Case Reports
|February 18, 2018
PubMed
Abstract

Insights

Obturator internus muscle (OIM) abscess is rare in adults. This case highlights methicillin-resistant Staphylococcus aureus (MRSA) OIM abscess originating from a toe infection, successfully treated with surgery and antibiotics.

Area of Science:

  • Infectious Diseases
  • Musculoskeletal Infections
  • Surgical Case Reports

Background:

  • Obturator internus muscle (OIM) abscess is an uncommon condition, predominantly reported in children following trauma or exertion.
  • Staphylococcus aureus is the typical pathogen, with positive blood cultures frequently observed.
  • Adult cases of OIM abscess are exceptionally rare in medical literature.

Purpose of the Study:

  • To report a unique case of OIM abscess in an adult patient.
  • To identify the causative pathogen and its origin.
  • To detail the successful management strategy for this rare condition.

Main Methods:

  • A case study of a 24-year-old male presenting with right hip pain and fever.
  • Diagnostic workup included bacterial examination identifying methicillin-resistant Staphylococcus aureus (MRSA).
  • Treatment involved surgical drainage, debridement, and systemic antibiotic therapy.

Main Results:

  • The patient was diagnosed with an OIM abscess caused by MRSA.
  • A concurrent intractable acronyx of the right great toe was identified as a potential source of infection.
  • Successful clinical recovery was achieved through surgical intervention and antibiotic treatment.

Conclusions:

  • This case represents the first reported instance of OIM abscess in an adult attributed to MRSA.
  • A distal infection, such as a toe infection, can potentially lead to systemic bacteremia and OIM abscess.
  • Prompt surgical drainage and appropriate antibiotic therapy are crucial for successful outcomes in adult OIM abscess cases.
Keywords:
AbscessMethicillin-resistant Staphylococcus aureusObturator internus muscle

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