A 7/M complaints of fever and pain right hip. On examination he has swelling in right hip region, there is mild reduction in movements in right hip region. Hip is in flexion, Abduction and External rotation. On xray there is mild increase in medial joint space. Diagnosis is:
1.Septic arthritis
2.Transient synovitis
3.Tubercular arthritis
4.Dislocation hip
Explanation
Patient is in age group 6 to 12 years of life with decreased movement at joint with non toxic presentation goes towards transient synovitis. Remember tubercular synovitis will have same presentation but tubercular arthritis will have Flexion, Adduction and Internal rotation thus will not be diagnosis here.