Table 1.

Summary of results of our study

Parameter	Mean	Range
Patient age at surgery	13.05 ± 1.41 years	11–15.5 years
Time from symptom onset till surgery	25.86 days	2–60 days
Duration of surgery	146.16 ± 19.48 min	120–200 min
Estimated blood loss	239 ± 79.03 ml	150–400 ml
Pre-operative slip angle	53.53 ± 7.37°	45°–65°
Post-operative slip angle	9.9° ± 3.78°	5°–15°
Slip angle correction	43.63° ± 8.42°	23°–55°
Post-operative alpha angle	33.63° ± 4.14	28°–45°
Harris Hip Score	81.833 ± 7.12 points	55–90 points
Duration of follow-up	25.36 months	13–60 months