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Updated: Apr 25, 2026

Knee Arthrocentesis in Adults
Published on: February 25, 2022
Pyogenic knee arthritis caused by group A β-hemolytic Streptococcus: a toxic shock-prevented case
Masafumi Goto1, Masafumi Gotoh, Yasuhiro Mitsui
1Department of Orthopedic Surgery, Kurume University Medical Center.
Abstract:
Pyogenic knee arthritis caused by group A β-hemolytic Streptococcus (GAS) is rare. GAS sometimes causes group A β-hemolytic streptococcal toxic shock syndrome. We encountered a case of pyogenic knee arthritis caused by GAS that resolved after appropriate treatment (emergency arthroscopic synovectomy and medication) administered within 48 h of onset. In cases of a history of another infection with acute knee joint pain, the possibility of GAS-induced pyogenic knee arthritis should be considered, and proper treatment should be administered immediately.
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