Histological and molecular features of the subacromial bursa of rotator cuff tears compared to non-tendon defects: a pilot study

Table 1 Demographic parameters of groups

	Group
	1	2	3	4
Pathology	Shoulder / AC joint instability (healthy group)	Osteochondral pathology (Necrosis^a/Arthrosis^b)	Partial SSP tear	Full-thickness SSP tear
RC lesion	Macroscopically intact RC	Macroscopically intact RC	Partial SSP tear	Full-thickness SSP tear
n	5	7	6	16
Age	28.8 ± 7.6	64.7 ± 15.5	55.0 ± 9.4	59.0 ± 9.0
BMI	23.7 ± 4.4	26.9 ± 6.6	27.8 ± 6.8	26.0 ± 5.2
Sex (f/m)	1/4	4/3	1/5	5/11
Patte score	–	–	0: 6x	1: 9x; 2: 5x; 3: 2x
Bateman score	–	–	–	2: 11x; 3: 3x; 4: 2x
Snyder classification	–	–	A3: 1x; B1: 2x; B2: 1x; B3: 1x, intratend.: 1x	–

AC acromioclavicular
^aone avascular, and one posttraumatic humeral head necrosis
^bone grade 1 omarthrosis with humeral head fracture and four grade 3 omarthrosis

ISSN: 1471-2474