Clinical efficacy of greater trochanter osteotomy with tension wire fixation in total hip arthroplasty for Crowe type IV developmental dysplasia of the hip

Table 2 The comprision of radiographic data of the patients in the two groups

Variable	GTT group (n = 13)	STO group (N = 11)	P value
Mean cup orientation (range)
Inclination	48.0° (39.3°–57.5°)	46.5° (38.5°-55.2°)	0.34
Anteversion	18.2° (10.2°–23.8°)	17.6° (12.5°-22.8°)	0.68
Stem alignment within − 3° to 3° (n)	13	11	ns
The time of bone healing (month)	3.4 (2.6–4.0)	4.3 (3.0–5.1)	0.32
Nonunion	1/13	2/11	0.58

GTT grochanteric osteotomy combined with tension wire fixation, STO subtrochanteric osteotomy, ns no significant difference

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