A propensity score-matched analysis between patients with high hip dislocation after childhood pyogenic infection and Crowe IV developmental dysplasia of the hip in total hip arthroplasty with subtrochanteric shortening osteotomy

Table 4 Radiographic Outcomes

Parameters	HDACI (n = 29)	DDH (n = 29)	P value
Time for union of SSO (mo)^a	4 (3-10) ^b	4 (2-10)	0.388
Radiolucency around cup	2 (7%)	2 (7%)	1.000
Radiolucency around stem	3 (10%)	2 (7%)	1.000
Stem subsidence	1 (3%)	0 (0%)	1.000
Stem stability			0.670
Bone ingrowth	25(87%)	27(93%)
Fibrous stable	3 (10%)	2 (7%)
Loosening	1 (3%)	0 (0%)
Heterotopic ossification	6 (21%)	4 (14%)	0.487

HDACI high dislocation after childhood infection, DDH developmental dysplasia of the hip, SSO subtrochanteric shortening osteotomy
^aThe values are given as the median with the range in parentheses
^bOne outliner is removed from the data

ISSN: 1749-799X