Table 1.

Specimens inspected in this study sorted by age for females and males

No. of specimens	Sex	Age (years)	n left side	n right side
1	f	72	6	6
2	f	75	7	8
3	f	79	10	9
4	f	81	8	8
5	f	86	10	10
6	f	87	7	7
7	f	87	8	8
8	f	87	10	9
9	f	91	10	10
10	f	92	8	8
11	m	59	10	10
12	m	67	8	8
13	m	72	10	10
14	m	74	8	8
15	m	92	8	8
	10 f:5 m	Mean = 80; SD = 10; median = 81; min = 59; max = 92	Sum = 128	Sum = 127

n number of left- and right-sided facet joint surfaces per specimen. The left-sided surfaces were finally evaluated. Their number varied from specimen to specimen since the length of the specimens differed and single facet surfaces were damaged during harvesting and could therefore not be included into the evaluation. SD standard deviation