Clinical effects of different center of rotation reconstructions in total hip arthroplasty after femoral neck fractures: a cohort study including a follow-up analysis on patient’s mobility and daily living ability

Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 7 Mann–Whitney U test between groups with positive (pos) and negative (neg) CPS

	Groups	N	Mean rank	p-Value
Barthel Index upon discharge	Neg	33	23.85	0.095 (two-sided)
	Pos	19	31.11
	Total	52
Barthel Index after 6 months	Neg	21	16.69	0.316 (two-sided)
	Pos	14	19.96	0.359 (one-sided significance)
	Total	35
Barthel Index after 12 months	Neg	21	16.69	0.283 (two-sided)
	Pos	14	19.96	0.359 (one-sided significance)
	Total	35
PMS after 6 months	Neg	23	17.22	0.093 (two-sided)
	Pos	15	23	0.121 (one-sided significance)
	Total	38
PMS after 12 months	Neg	23	15.61	0.003 (two-sided)
	Pos	15	25.47	0.007 (one-sided significance)
	Total	38
NRS after 6 months	Neg	22	17.36	0.093 (two-sided)
	Pos	17	23.41	0.104 (one-sided significance)
	Total	39
NRS after 12 months	Neg	23	18.89	0.29 (two-sided)
	Pos	17	22.68	0.315 (one-sided significance)
	Total	40