title: OPEN DRAINAGE VERSUS PERCUTANEOUS DRAINAGE IN THE TREATMENT OF TROPICAL PYOMYOSITIS. PROSPECTIVE AND RANDOMIZED STUDY.
abstract: OBJECTIVE
  To compare the results from treating tropical pyomyositis through percutaneous drainage of abscesses versus open surgical drainage of abscesses, by means of a randomized prospective study.
  
  
  METHODS
  Twenty-five patients with tropical pyomyositis (Chiedozi grade II) were included in this study. They were randomized into two groups: group A (n = 13), treated with antibiotics and open drainage of the abscesses; and group B (n = 12), treated with antibiotics and percutaneous drainage of the abscesses.
  
  
  RESULTS
  The mean age was 35.3 years (± 19.2) in group A and 30.1 years (± 9) in group B (p = 0.41). There were eight female patients (61.5%) and five male patients (38.5%) in group A; in group B, three were female (25%) and nine were male (75%) (p = 0.11). Staphylococcus aureus was the microorganism most frequently found (72%). The mean hospital stay in group A was 12.7 days (± 2.3), and in group B, 10.6 days (± 1.6) (p = 0.01). The mean duration of antibiotic use in group A was 12.2 days (± 2.3), and in group B, 10.1 days (± 1.5) (p = 0.02).
  
  
  CONCLUSIONS
  Percutaneous drainage of the abscesses, in association with antibiotic therapy, is an efficient treatment method for tropical pyomyositis grade II, with shorter antibiotic use and hospital stay for patients.
authors.affiliation: Assistant Professor in the Department of Orthopedics and Traumatology, Marília School of Medicine, Marília, SP.
authors.forename: Evandro Pereira
authors.initials: EP
authors.lastname: Palacio
authors.affiliation: Resident Physician in the Department of Orthopedics and Traumatology, Marília School of Medicine, Marília, SP.
authors.forename: Nívea Gitahy
authors.initials: NG
authors.lastname: Rizzi
authors.affiliation: Resident Physician in the Department of Orthopedics and Traumatology, Marília School of Medicine, Marília, SP.
authors.forename: Gustavo Serra
authors.initials: GS
authors.lastname: Reinas
authors.affiliation: Resident Physician in the Department of Orthopedics and Traumatology, Marília School of Medicine, Marília, SP.
authors.forename: Melvis Michiuti
authors.initials: MM
authors.lastname: Júnior
authors.affiliation: Head of the Shoulder and Elbow Group, Department of Orthopedics and Traumatology, Marília School of Medicine, Marília, SP.
authors.forename: Alcides Durigan
authors.initials: AD
authors.lastname: Júnior
authors.affiliation: Head of Service and Head of the Knee Group, Department of Orthopedics and Traumatology, Marília School of Medicine, Marília, SP.
authors.forename: Roberto Ryuiti
authors.initials: RR
authors.lastname: Mizobuchi
authors.affiliation: Assistant Professor in the Department of Orthopedics and Traumatology, Marília School of Medicine, Marília, SP.
authors.forename: Ricardo Hideki
authors.initials: RH
authors.lastname: Yanasse
authors.affiliation: Assistant Professor in the Department of Orthopedics and Traumatology, Marília School of Medicine, Marília, SP.
authors.forename: Marcos Vinícius Muriano
authors.initials: MV
authors.lastname: da Silva
authors.affiliation: Fifth-year undergraduate student in the Medical Course, Marília School of Medicine, Marília, SP.
authors.forename: Rodrigo Borsatto
authors.initials: RB
authors.lastname: Branco
authors.affiliation: Head of the Hand Surgery Group, Department of Orthopedics and Traumatology, Marília School of Medicine, Marília, SP.
authors.forename: José Antônio
authors.initials: JA
authors.lastname: Galbiatti
keywords: Abscess; Myositis; Pyomyositis; Staphylococcus aureus