Table 1.

Results of freehand cup placement in the literature.

Reference	Anteversion	Abduction	Inside safe zone
Bosker et al. (14)	5–25°	30–50°	70.5%
Callanan et al. (15)	5–25°	30–45°	47%
DiGioia et al. (16)	5–25°	30–50°	20.3%
Grammatopoulos et al. (45)	5–25°	30–50°	50%
Hassan et al. (17)	5–25°	30–50°	58%
Leichtle et al	10–30°	35–55°	65.5%
Reize et al. (18)	5–25°	30–50°	41%
Saxler et al. (19)	5–25°	30–50°	25.7%