1. Salter and Penberton shortening operation for DDH patients Mazloumi M MD Associated professor Orthopedic Surgeon

2. Patients We retrospectively reviewed 31 patients with DDH treated in Gaem hospital in last 5 years. Six patients excluded of this study because of other treatment modalities. 25 patient include in this study.

3. Patients Number of patients 25 Number of bilateral involvement 12 Number of the affected hip 37 Follow up Between 6 month to six years (min 3 years)

4. Age of patients Age ( months ) No. % 7 14.0 11 14.0 19 14.0 24 ( 2 years ) 728.0 36 ( 3 years ) 624.0 48 (4 years ) 520.0 60 28.0 84 14.0 108 14.0 Total 25100.0

5. Patients Sex No. % Boy624.0 Girl1976.0 Total25100.0

6. Patients Associated disease No. % Non 1872.0 Club foot 28.0 Mental retardation 14.0 Arthrogriposis 14.0 Myelomeningocell 14.0 Vertical talus 28.0 Total 25100.0

7. Patients Affected sideNo. % Left520.0 Right832.0 Bilateral1248.0 Total25100.0

8. Patients Type of operation No. % Left Salter Shortening416.0 Right pemberton Shortening624.0 Right Salter Shortening416.0 Left pemberton Shortening14.0 Left close reduction & Right Salter Shortening14.0 Right & Left Salter Shortening936.0 Total25100.0

9. Number of dislocated hip joint Type of operation No.% Left Salter Shortening1540.0 Right pemberton Shortening616.0 Right Salter Shortening1438.0 Left pemberton Shortening13.0 Left close reduction13.0 Total37100.0

10. Severin,s classification system C E angle 19 degreeIaClass I 16 degreeIbNorma 19 degreeIIaClass II 15 – 19 degreeIIbModerate deformity 15 degreeIIIaClass III IIIbDysplasia without subluxation 0IVaClass IV 0IVbSubluxation PseudoacetabulumClass V RedislocationClass VI

11. Severin,s classification system Number of operated hips 5IaClass I 7IbNorma 10IIaClass II 13IIbModerate deformity IIIaClass III IIIbDysplasia without Subluxation 1IVaClass IV IVbSubluxation PseudoacetabulumClass V 1RedislocationClass VI

12. Complication

15. A.I. = Graft failure

16. Complication

18. 1 year after operation A. I. =

19. 17 year after operation