The Effect of the Type of Screw Fixation Used in the Treatment of Slipped Capital Femoral Epiphysis

Table 4

Neck width, neck shaft angle, and articular-trochanteric distance.

	6 weeks	2 years	Observed difference (mm)
Neck width
Fully threaded	36.2	41.1	4.9
Partially threaded	37.9	43.3	5.4
			value 0.837
Neck shaft angle
Fully threaded	138.7	136.5	2.2 (degrees)
Partially threaded	137.9	136.7	1.2
			value 0.914
Articular-trochanteric distance
Fully threaded	26.3	22.3	4
Partially threaded	22.9	18.7	4.2
			value 0.017