Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Part 7 Symptoms &Signs Male. 45 severe pain in his left this g h for 2 weeks symptoms evening rise of temperature for inability to bear weight the past I month no associated anorexia or ankylosing spondylitis Sequential revision total hip weight lOSS 强直性脊柱炎 arthroplasty Physical examination 20 years old 7 years before a tender swelling on the anterior aspect of the thigh with a discharging sinus 22 years old 2 months before bilateral total hip arthroplasty short intravenous course of infliximab because of acute polyarthralgia(多关节痛)Part 1 Part 2 2 Part 3 Part 4 Part 5 Part 6 Part 7 Symptoms &Signs Male, 45 severe pain in his left thigh for 2 weeks, inability to bear weight 20 years old ankylosing spondylitis 强直性脊柱炎 22 years old bilateral total hip arthroplasty Symptoms: evening rise of temperature for the past 1 month; no associated anorexia or weight loss Physical examination: a tender swelling on the anterior aspect of the thigh with a discharging sinus 7 years before Sequential revision total hip arthroplasty short intravenous course of infliximab, because of acute polyarthralgia (多关节痛) 2 months before