Comparison of the Tendon Damage Caused by Four Different Anchor Systems Used in Transtendon Rotator Cuff Repair

Table 1

Areas of tendon damage caused by anchors.

Sample number	(a) Healix Peek anchor (5.5 mm)	(b) Fastin RC anchor (5.0 mm)	(c) Bio-Corkscrew Suture anchor (5.0 mm)	(d) Healix Transtend anchor inserted through the Percannula system (4.0 mm)	(e) Healix Transtend anchor (3.4 mm) without cannula
1	25.0	17.4	23.3	7.0	13.0
2	28.6	22.6	21.4	10.7	10.0
3	31.6	22.8	22.9	9.1	10.1
4	37.5	18.6	24.7	10.9	16.7
5	25.8	22.7	22.9	6.6	18.7
6	26.8	18.3	23.7	7.5	14.1
7	28.5	20.2	24.8	11.7	13.1
Mean	29.1	20.4	23.4	9.1	13.7
SD	4.3	2.3	1.2	2.1	3.2
𝑃 (versus a)		0.0005	0.0052	0.0000	0.0000
𝑃 (versus b)			0.0099	0.0000	0.0008
𝑃 (versus c)				0.0000	0.0000
𝑃 (versus d)					0.0078

Note: SD represents standard deviation. 𝑃 values were obtained by the two-tailed Student’s t-test, comparing between two types of anchors as indicated.