Tuesday, March 11, 2014

Rotator cuff repair - the use of grasping suture in a sheep model

Medial grasping sutures significantly improve load to failure of the rotator cuff suture bridge repair.

The authors point out that the failure rates of cuff repair continue to be high, especially in large and massive tears.

They studied 7 matched pairs of sheep infraspinatus tendons were randomly repaired with either a suture bridge or suture bridge with grasping suture. 

They found that the rotator cuff footprint displacement was less during tensile loading with the addition of the medial grasping suture. 
The ultimate load to failure was significantly greater with the addition of the grasping suture.

Interestingly, in all cases the mode of failure was the tendon pulling off the footprint with suture cutting through the tendon.

Comment: It is not surprising that the addition of more sutures increases the load to failure, see the post linked here..

It is important to note that cuff repairs fail by suture tension overload. This study was performed using healthy sheep tendons. Poor quality of tendon or insufficient quantity of tendon can be expected to increase the risk of failure with any repair technique. It remains to be seen whether the addition of another stitch improves the success rate in chronic large tears.

Consultation for those who live a distance away from Seattle.

Check out the new Shoulder Arthritis Book - click here.

To see the topics covered in this Blog, click here

Use the "Search" box to the right to find other topics of interest to you.

You may be interested in some of our most visited web pages including:shoulder arthritis, total shoulder, ream and runreverse total shoulderCTA arthroplasty, and rotator cuff surgery as well as the 'ream and run essentials'