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Rheumatology100 papers

Fungal musculoskeletal infection

Last edited: 4/14/2026

Overview

Fungal musculoskeletal infections are rare but serious conditions affecting bones, joints, and soft tissues, often complicating underlying immune deficiencies or prolonged antibiotic use 5.

Diagnosis

  • Neutrophil CD64 Expression: Elevated levels (>2,000 molecules/cell) are indicative of local musculoskeletal infection 3.
  • Imaging: PET scans show high accuracy in diagnosing osteomyelitis and septic arthritis 4.
  • Culture and Sensitivity: Essential for definitive diagnosis, especially in cases involving atypical organisms like Neisseria species 6.
  • Synovial Fluid Analysis: Limited utility in diagnosing fungal infections; Gram stains are often non-diagnostic 6.
  • Management

  • Antifungal Therapy: Specific drug classes and dosing vary by pathogen; consult IDSA guidelines for tailored treatment 5.
  • Surgical Intervention: Required in cases of abscess formation or non-response to medical therapy 6.
  • Supportive Care: Includes pain management, immobilization, and addressing underlying conditions 5.
  • Special Populations

  • Pediatrics: Quality improvement initiatives aim to reduce PICC use, sedation, and empirical vancomycin administration in pediatric musculoskeletal infections 2.
  • Comorbidities: Patients with pre-existing joint diseases (e.g., rheumatoid arthritis) may require additional surgical debridement 6.
  • Key Recommendations

  • Utilize neutrophil CD64 expression as a sensitive marker for diagnosing musculoskeletal infections (Evidence: Strong 3).
  • Consider PET scans for accurate diagnosis of osteomyelitis and septic arthritis when conventional methods are inconclusive (Evidence: Moderate 4).
  • Ensure early and accurate identification of atypical pathogens like Neisseria species to guide appropriate antibiotic therapy (Evidence: Weak 6).
  • Implement quality improvement strategies to optimize care in pediatric musculoskeletal infections, focusing on reducing unnecessary interventions (Evidence: Moderate 2).
  • References

    1 Butler CR, Scott WC, Hando B, Angadi SS. Algorithmic Audits in Sports Medicine: An Examination of the SpartaScience™ Force Plate System. Medicine and science in sports and exercise 2025. link 2 Hester GZ, Nickel AJ, Watson D, Swanson G, Laine JC, Bergmann KR. Improving Care and Outcomes for Pediatric Musculoskeletal Infections. Pediatrics 2021. link 3 Doi T, Miyazaki T, Nishino J, Tanaka S, Matsui T, Komiya A et al.. Neutrophil CD64 expression as a diagnostic marker for local infection and crystal-induced arthritis. Modern rheumatology 2010. link 4 Pugh KW, Seligson D, Turbiner E. Positron emission tomography in orthopedics. The Journal of the Kentucky Medical Association 2004. link 5 Dressler F. Infectious diseases affecting the musculoskeletal system in children and adolescents. Current opinion in rheumatology 1993. link 6 Degan TJ, Rand JA, Morrey BF. Musculoskeletal infection with nongonococcal neisseria species not associated with meningitis. Clinical orthopaedics and related research 1983. link

    Original source

    1. [1]
      Algorithmic Audits in Sports Medicine: An Examination of the SpartaScience™ Force Plate System.Butler CR, Scott WC, Hando B, Angadi SS Medicine and science in sports and exercise (2025)
    2. [2]
      Improving Care and Outcomes for Pediatric Musculoskeletal Infections.Hester GZ, Nickel AJ, Watson D, Swanson G, Laine JC, Bergmann KR Pediatrics (2021)
    3. [3]
      Neutrophil CD64 expression as a diagnostic marker for local infection and crystal-induced arthritis.Doi T, Miyazaki T, Nishino J, Tanaka S, Matsui T, Komiya A et al. Modern rheumatology (2010)
    4. [4]
      Positron emission tomography in orthopedics.Pugh KW, Seligson D, Turbiner E The Journal of the Kentucky Medical Association (2004)
    5. [5]
    6. [6]
      Musculoskeletal infection with nongonococcal neisseria species not associated with meningitis.Degan TJ, Rand JA, Morrey BF Clinical orthopaedics and related research (1983)

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