A novel suture anchor constructed of cortical bone for rotator cuff repair: a biomechanical study on sheep humerus specimens

Abstract

In vitro, this experimental study suggested no statistically significant difference in initial fixation stability between the new type anchor and titanium screw anchor at a chosen level of significance (P < 0.05). The new type of suture anchor constructed of cortical bone provides comparable initial fixation strength to a similar metallic anchor for rotator cuff repair.

Rotator cuff repair with biodegradable high-purity magnesium suture anchor in sheep model

“…According to Qi et al. [ 36 ], the failure load of titanium screw anchor was 328.45 ​± ​89.58 ​N. There is no definite conclusion on the minimum load required after rotator cuff repair, Mazzocca et al.…”

Large animal models for the study of tendinopathy

“…This model has been gradually used in various orthopedic studies, including studies on rotator cuff repair, due to its easy availability, ease of rearing, and relatively low cost. The large size of the infraspinatus tendon in sheep makes them particularly suitable for in vitro biomechanical studies ( Camenzind et al, 2016 ; Guo et al, 2016 ). In addition, the sheep model has also been used to investigate the effect on rotator cuff repair of engineered tissue grafting ( Novakova et al, 2018 ), perforated anchors, or collagen scaffolds loaded with tenocytes ( Roßbach et al, 2020 ).…”