Table 2.

Rerevisions, complications, stem subsidence, and Harris pain and hip scores

Series	Number of hips	Stem rerevision for		Vancouver A or B postoperative fracture	Subsidence (mm) at 12 months*
		Aseptic loosening	Infection		Prosthesis-bone interface	P value†	Prosthesis-cement interface	P value†	Cement-bone interface	P value†
1	23	4	1	3	4.1 (0.3–13.1)‡	1v2 < 0.001	2.1 (0.1–7.2)‡	1v2 < 0.05	1.3 (0–5.9)‡	1v2 < 0.01
2	12	0	1	0	1.0 (0–1.6)	2v3 > 0.05	0.5 (0–2.5)	2v3 > 0.05	0.1 (0–0.9)	2v3 > 0.05
3	21	0	0	0	0.8 (0–4.2)	1v3 < 0.001	0.7 (0–1.6)	1v3 < 0.05	0.1 (0–1.8)	1v3 < 0.05

* Values are expressed as median, with range in parentheses; ^†nonparametric Kruskal-Wallis test; ^‡excludes cases revised for loosening.