Table 1.

Mean bone mineral density (BMD) in grams per square centimetre (g/cm²) over the course of 2 years after Metha short-stem implantation

ROI	1 week preoperatively	SD	1 week postoperatively (baseline value)	SD	6 months postoperatively	SD	1 year postoperatively	SD	2 years postoperatively	SD
1	0.73	0.13	0.78	0.15	0.73**	0.19	0.69**	0.17	0.72**	0.24
2	1.16	0.23	1.48*	0.29	1.46	0.33	1.52	0.23	1.46	0.26
3	1.51	0.29	1.71*	0.31	1.69	0.33	1.71	0.24	1.56**	0.30
4	1.66	0.29	1.70	0.32	1.65**	0.29	1.78	0.23	1.61	0.25
5	1.53	0.27	1.68*	0.30	1.60**	0.31	1.71	0.17	1.58	0.25
6	1.18	0.20	1.23	0.23	1.34	0.34	1.34	0.21	1.36**	0.25
7	1.06	0.22	1.05	0.26	1.06	0.33	0.95	0.27	1.11	0.27

Regions of interest 1–7

SD standard deviation

*Significant change to preoperative value (Wilcoxon signed-ranks test, p < 0.05)

**Significant change to baseline value 1 week after surgery (Wilcoxon signed-ranks test, p < 0.05)