Work

Haemophilus parainfluenzae septic arthritis following orthopedic procedures in immunocompetent patients with diverse management: A case report of 2 rare cases

Year: 2025

Type: article

Abstract: RATIONALE: H. parainfluenzae is an uncommon cause of musculoskeletal infection, particularly after orthopedic procedures. PATIENT CONCERNS: Two cases of H. parainfluenzae infection in immunocompetent patients following reverse shoulder arthroplasty and arthroscopic knee procedures. DIAGNOSES: H. parainfluenzae was identified as the causative pathogen through synovial fluid culture. Case 1 was identified as periprosthetic joint infection of the shoulder, and Case 2 as septic arthritis of the knee. INTERVENTIONS: Case 1 was managed with needle aspiration and oral antibiotics. Case 2 underwent arthroscopic debridement and received antibiotic therapy. OUTCOMES: Both patients recovered without recurrence of infection following appropriate treatment. In Case 2, the patient's C-reactive protein levels decreased from 18.3 mg/dL at presentation to 0.217 mg/dL by postoperative day 36, indicating resolution of inflammation and restoration of function. LESSONS: These cases highlight the potential of H. parainfluenzae infection in healthy individuals and underscore the importance of accurate diagnosis and appropriate management to ensure favorable outcomes.

Source: Medicine

DOI: 10.1097/md.0000000000046433

Authors: Min-Shiue Ho, Chang-Hao Lin, Shih-Hao Chen, Yu-Sian Ding, Chen-Hao Chiang

Institutions: Chia-Yi Christian Hospital, National Chiayi University

Language: English

Topic: Orthopedic Infections and Treatments

Subfield: Surgery

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,950