Functional and Structural Details about the Fabella: What the Important Stabilizer Looks Like in the Central European Population

Table 1

Fabella occurrence in accordance with selected age groups.

Distribution of fabella occurrence
Age group		Male	Female	Number of knees	Fabellae present	Bilat./Unilat. per	Percentage per age group (%)	Relative distribution
20–29	5	3	2	10	0	0	0.00	0.00
30–39	5	4	1	10	2	B-1	1.90	0.38
40–49	17	11	6	34	9	B-4; U-1	8.57	0.50
50–59	8	4	4	16	2	B-1	1.90	0.24
60–69	14	10	4	28	6	B-3	5.71	0.41
70–79	38	20	18	76	17	B-8; U-1	16.19	0.43
80–89	65	30	35	130	41	B-17; U-7	39.05	0.60
90–99	45	17	28	90	28	B-11; U-6	26.67	0.59
100–109	3	0	3	6	0	0	0.00	0.00
Sum	200	99	101	400	105	B-45; U-15	100.00

CT-studies of both knees.
B: bilateral; U: unilateral.