Related Experiment Video

Updated: Aug 24, 2026

Knee Arthrocentesis in Adults
04:41

Knee Arthrocentesis in Adults

Published on: February 25, 2022

Septic arthritis of the elbow after chickenpox

Arpad Konyves1, Sunny D Deo, James R D Murray

  • 1Department of Orthopaedics, Frenchay Hospital, Bristol, UK.

Insights

Musculoskeletal complications like septic arthritis are rare after chickenpox (varicella) in healthy children. Early MRI is crucial for diagnosing and treating this rare complication, regardless of the causative bacteria.

Area of Science:

  • Pediatric infectious diseases
  • Musculoskeletal infections

Background:

  • Chickenpox (varicella) is a common viral illness in children.
  • Musculoskeletal complications, such as septic arthritis, are infrequent sequelae.

Observation:

  • A rare case of elbow septic arthritis caused by Staphylococcus aureus following chickenpox is presented.
  • Literature review indicates Group A Streptococcus is the most common pathogen, typically affecting the knee.

Findings:

  • Septic arthritis post-chickenpox can be caused by various bacteria, including Staphylococcus aureus.
  • Diagnosis and management should follow established guidelines for de novo septic arthritis.

Implications:

  • Early Magnetic Resonance Imaging (MRI) is recommended for prompt diagnosis.
  • Timely and appropriate treatment is essential for favorable outcomes in pediatric septic arthritis.

Related Concept Videos

Chickenpox01:20

Chickenpox

Chickenpox is an acute, highly contagious disease caused by the varicella-zoster virus (VZV), a double-stranded DNA virus belonging to the Herpesviridae family. Its transmission occurs primarily through the inhalation of respiratory droplets or direct contact with vesicular fluid from skin lesions. The incubation period typically ranges from 10 to 21 days, during which the virus replicates and disseminates through sequential phases within the host. Although generally self-limiting in children,...
Bacterial Meningitis01:24

Bacterial Meningitis

Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...
Poliomyelitis01:17

Poliomyelitis

Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...
Streptococcal Pharyngitis01:27

Streptococcal Pharyngitis

Streptococcal pharyngitis, commonly known as “strep throat,” is an acute infection of the oropharyngeal tissues caused by the Gram‑positive Group A Streptococcus (Streptococcus pyogenes). Transmission occurs primarily through respiratory droplets expelled during coughing, sneezing, or talking.Mechanisms of Host Entry and Immune EvasionUpon entering the host, S. pyogenes adheres to the mucosal epithelial cells of the pharynx via surface proteins, notably lipoteichoic acid and the antiphagocytic...
Endocarditis I: Introduction01:25

Endocarditis I: Introduction

Introduction:Endocarditis is the infection of the endocardium, the inner lining of the heart and its valves. When the heart muscle is involved, the condition is termed myocarditis, while an infection of the outer lining is called pericarditis. Infective endocarditis (IE) primarily affects the endocardium, where pathogens adhere to the valves or lining, forming vegetation that can lead to severe complications. Infective endocarditis occurs when microorganisms, usually bacteria from other body...
Rocky Mountain Spotted Fever01:26

Rocky Mountain Spotted Fever

Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.