Rotator cuff tests on intact goat model
The project is to design a fixture for testing the behaviour of rotator cuff using a goat model. In ten fresh goat shoulders, all soft tissues were removed from the proximal humerus, leaving the infraspinatus tendon intact with attached scapula. The infraspinatus tendons of the goat are...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Final Year Project |
| Language: | English |
| Published: |
2013
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/51083 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | The project is to design a fixture for testing the behaviour of rotator cuff using a goat
model.
In ten fresh goat shoulders, all soft tissues were removed from the proximal humerus,
leaving the infraspinatus tendon intact with attached scapula. The infraspinatus tendons
of the goat are similar to those of the human rotator cuff in size, shape and
microstructure. The specimen was clamped onto a custom-designed fixture with
shoulder abduction at 60°. A preload of 20 N was set at the crosshead of the testing
machine. Fifty cycles with tensile loads of 75 N were then applied with a crosshead
extension rate of 20 mm per minute. Incremental cyclic loading of 25 N per fifty cycles
were applied until failure.
The results showed that the incremental deformation ranged from 25mm to 48 mm with
loads reaching up to 425 N. |
|---|