PT - JOURNAL ARTICLE AU - Al-Asfar, Said M. AU - Attar, Mohammad AU - Shacfeh, Hasan TI - Infliximab treatment for resistant Achilles tendonitis DP - 2009 Sep 01 TA - Saudi Medical Journal PG - 1228--1230 VI - 30 IP - 9 4099 - http://smj.org.sa/content/30/9/1228.short 4100 - http://smj.org.sa/content/30/9/1228.full SO - Saudi Med J2009 Sep 01; 30 AB - Undifferentiated spondyloarthropathies USPA can sometimes be refractory to usual disease modifying agents. Anti-tumor necrosis factor TNF-alpha agents have been shown to be effective in spondyloarthropathies. Few articles described the efficacy of TNF-alpha antagonists in USPA. Our patient had refractory Achilles tendonitis as an early manifestation of USPA which responded dramatically to infliximab treatment.