Possibilities for arthroscopic treatment of the ageing sternoclavicular joint

Table 1 Characteristics of the cadavers, the articular cartilage and the disc of the sternoclavicular joint

Age (yr)	Sex	Right thinnest/thickest part of disc mm1	Left thinnest/thickest part of disc mm1	Right attach-ment disc2	Left attach-ment disc2	Right cartilage C/S mm	Left cartilage C/S mm	Right cartilage quality C/S3	Left cartilage quality C/S3
59	F	2.1 i/3.1 s	2.2 i/4.4 s	1	5	21/15	22/14	2/2	3/3
60	F	0 i/3.9 s	0.5 i/3.9 s	5	1	23/18	25/20	0/0	0/0
65	M	2.3 i/4.3 s	4.4 i/6.4 s	1	1	24/17	26/17	2/1	2/1
65	F	1.7 i/4.8 s	0/2.4	1	5	27/18	24/21	1/1	4/4
66	M	2.2 i/4.3 s	0.9 i/4.2 s	5	1	30/19	26/21	1/1	3/1
71	M	1.2 i/4.5 s	2.2 i/6.3 s	4 + 5	1	32/20	29/21	3/2	2/3
71	M	0.6 i/1.6 s	0.9 i/2.2 s	3	5	21/17	22/13	3/3	3/3
72	F	0 i/1.4 s	0 c/2.6 s	2 + 5	1	25/18	26/19	3/2	3/2
73	M	Absent	Absent	Absent	Absent	31/20	29/21	3/3	3/3
73	M	0/3.2 anterior rim	0/4.0 anterior rim	3 + 4 + 5	3 + 4 + 5	28/18	24/17	3/4	3/4
74	M	2.9 i/3.8 s	2.0 s/3.3 i	2 + 4 + 5	1	29/19	28/17	3/2	3/2
75	F	Absent	2.1 i/2.8 s	Absent	5	19/15	18/14	3/2	1/1
75	M	2.5 i/3.5 s	1.1 i/4.1 s	5	1	25/14	25/18	3/3	2/3
76	M	0/2.2 i (flap)	2.3 i + s/3.8 c	3 + 4	1	27/17	25/17	4/4	2/3
78	M	3.5 i/4.5 s	3.5 i/5.7 s	3	1	27/19	25/22	3/3	3/3
78	M	2.3 i/3.0 s	1.0 i/2.9 s	5	5	26/17	27/18	2/1	2/1
78	M	Absent	0.9 i/3.4 s	Absent	1	25/17	29/19	4/4	3/3
79	M	0 i/0.8 s	0/2.7 s	5	5	21/17	21/17	2/3	3/2
79	M	2.0 i/3.7 s	Absent	5	Absent	29/21	28/20	3/3	2/2
79	M	0.5 i/3.9 s	0.1 i/4.4 s	1	1	24/16	21/16	3/2	4/2
79	M	Ankylosis	2.0 i/5.2 s	Ankylosis	4 + 5	25/20	23/16	Ankylosis	3/3
81	F	1.8 i/3.3 s	0/2.9 s	5	4 + 5	24/17	25/17	2/1	1/1
81	F	Absent	1.2 s/2.7 i	Absent	3	26/20	28/19	4/4	3/2
83	M	1.0 s/2.9 i	3.0 i/3.6 s	5	5	28/21	24/13	4/3	4/2
84	M	2.3 i/5.4 s	3.0 i/4.9 s	5	1	26/20	26/19	3/1	2/1
84	M	1.0 i/1.7 s	1.6 s/1.4 i	1	1	24/16	24/19	3/1	3/1
84	M	Absent	Absent	Absent	Absent	23/20	24/19	3/4	3/3
85	M	2.4 i/2.7 s	1.2 i/3.5 s	3 + 4 + 5	1	22/17	21/16	4/2	4/2
85	F	2.3 i/4.0 s	0/2.2 anterior rim	5	3 + 4 + 5	25/18	24/17	4/2	3/3
86	F	Absent	Absent	Absent	Absent	20/16	20/16	3/4	3/4
89	F	1.0 i/2.7 s	Absent	2 + 5	Absent	22/15	23/16	1/1	3/3
90	F	0.8 i/2.5 s	1.1 s/1.2 i	1	1	29/19	29/21	3/3	2/2
90	M	3.3 i/3.6 s	2.5 i/2.9 s	4 + 5	5	26/18	28/18	4/3	4/3
90	F	0/1.9 anterior rim	1.5 i/2.5 s	3 + 4 + 5	5	23/19	23/17	4/4	4/4
91	F	0 c/3.1 s	1.5 i/0 s	1	4	21/16	26/18	4/3	4/3
92	M	Absent	1.9 s/3.4 i	2 + 4 + 5	5	21/14	20/16	3/4	2/2
93	M	0/0 (absent)	0/3.2 s	Absent	4 + 5	31/18	31/17	3/3	4/4
94	M	1.7 i/3.3 s	Absent	2 + 5	Absent	26/21	27/21	3/2	4/4
96	M	0/2.2 anterior rim	0/3.8 anterior rim	3 + 4 + 5	3 + 4 + 5	26/18	28/17	4/4	4/4

¹i: Inferior; s: Superior.

²1: Full attachment; 2: Detachment anterior; 3: Detachment superior; 4: Detachment posterior; 5: Detachment inferior.

³Outerbridge classification: 0: Normal cartilage; 5: No cartilage. M: Male; F: Female.