Table 4.

Studies of acetabular anterior coverage after Salter osteotomy

Variable	Takashi et al. [12]	Dora et al. [3]	Robb et al. [10]	Barnes et al. [1]	Current study
Type of surgery	Salter osteotomy	Salter osteotomy, triple pelvic osteotomy	Salter osteotomy	Salter osteotomy	Salter osteotomy, Pemberton acetabuloplasty
Number of hips/patients	30 / 30	90 / 73	17 / 16	36 / 30	42 / 42
Mean age of patients at surgery (years)	6	4.8	5	2.8	1.6
Mean followup (years)	10.4	11.5	15	> 40	17.7
Measurement method	AP radiograph, computer program [6]	AP radiograph, Hefti template [4]	AP radiograph, Hefti template [4]	AP radiograph, Hefti template [4]	False profile radiograph, direct measurement
Radiographic results	Anterior-half coverage of the involved side was greater than the values for the unaffected side; anterior inclination of the distal fragment obtained by Salter osteotomy continues until bone maturation.	Anterior overcoverage after Salter and triple pelvic osteotomy was frequent; acetabular remodeling during growth seems not to be sufficient to correct this malalignment until maturity.	Only 2 patients (12%) showed retroversion; acetabular remodeling may occur with age.	No significant difference between anterior coverage; Salter osteotomy before the age of 5 years did not consistently cause acetabular retroversion that persisted into adulthood.	Acetabular anterior coverage increased after Pemberton acetabuloplasty compared with the nonoperated side and after the Salter acetabuloplasty.
Functional results	No functional results were provided.	Only 6 of 26 hips showing anterior overcoverage were available for clinical examination; only one patient reported spontaneously about pain in groin after physical activity.	The mean average Harris hip score was 85; neither of the 2 patients with retroversion had signs of impingement.	No functional results were provided.	The Harris hip score and SF-36 with at least 10 years followup were good and similar for Salter and Pemberton procedures.