Epidemiological review of upper and lower extremity joints dislocations among visiting patients in Imam Khomeini hospital Ahvaz in 2005

Objects: The aim of this study was to review of incidental pattern of upper and lower extremity joints dislocations among patients in Imam Khomeini Hospital, Ahvaz in 2005 for the first time which is the referral university hospital in the province of Khuzestan, Iran.Subjects and This was a retrospective and descriptive study among in and out patients in orthopedic surgery department of Imani Khomeini hospital during 2005 on the basis of a total amount of 64000 cases (62000 outpatient and 2000 admitted cases).The study was done for the presence of any dislocation, involved limb, age, sex, side of the involvement, accompanying injuries, mechanism of injury, open or closed dislocation. There was a total amount of 128 dislocations (Men=85% Women =l5%) 52.3% in the right side and 47, 7% in the left side 64% of dislocations accompanied by a fracture and 30,5% needed hospital admission. In all cases there was only one joint involvement and the most common age of joint dislocation was in the third decade of life more than 77% of dislocation occurred among patients between 10-40 years old. Neurological damage was found in only one case and there was no vascular injury. Incidence of closed dislocation was 98.4% and the most common mechanism of injury as accident (32.8%).Joint dislocations were more common in the upper extremity (73.4%) in shoulder (21.1%) and in hand Mp joint (16.4%) In the lower extremity hip dislocation was more common (81. 8%).Gallezia fracture dislocation was the most common form of a fracture dislocation combination (20.3%). Dislocation was more common in the male gender, upper extremity, right side and third decade of life. Accident was the most common mechanism of joint dislocation. Shoulder was the most common dislocated joint in the upper extremity and hip was so in the lower extremity. Most cases required short term admission in the Emergency Orthopedic Department and only one case of ulnar nerve injury was discovered among joint dislocation cases.