[A clinical study on septic arthritis of temporomandibular joint: culture and identification of pathogenic bacteria].
OBJECTIVE
To explore the pathogenic organism of septic arthritis of temporomandibular joint and the culture condition of the available bacteria.


METHODS
Joint fluid was aspirated from 30 patients in recent 5 years. Smear and Gram stain of joint fluid were done immediately, then cultured in blood agar, bacteria-preserving culture medium, trypticase soy agar(TSA) or trypticase soy broth(TSB) under aerobic or anaerobic condition, respectively. Pathogen identification was performed with biochemical methods.


RESULTS
Microorganism were found with Gram staining in 15 out of 30 cases, but the culture of bacteria only succeeded in 5 cases. Staphylococcus saprophyticus and Staphylococcus aureus were the bacteria isolated. Bacteria was isolated in TSB mostly.


CONCLUSIONS
2 kinds of microorganism were isolated from joint fluid, and S. saprophyticus was reported for the first time. However, the positive rate was low, and the better technique for culture was expected.
Cai
Xie-yi
XY
Dept. of Oral & Maxillofacial Surgery, Afficiated Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China.
Yang
Chi
C
Zhang
Zhi-yuan
ZY
Qiu
Wei-liu
WL
Ha
Qi
Q
Wang
Xu-dong
XD
D001170:Arthritis, Infectious / Q000382:microbiology*; D006801:Humans; D013210:Staphylococcus / Q000302:isolation & purification*; D013211:Staphylococcus aureus / Q000302:isolation & purification*; D013704:Temporomandibular Joint / Q000382:microbiology*