Friday, July 17, 2020

"Repair" of large and massive cuff tears: failure in almost 90% of cases!

Arthroscopic Repair of Large and Massive Rotator Cuff Tears: Complete Repair with Aggressive Release Compared with Partial Repair Alone at a Minimum Follow-up of 5 Years

These authors assessed the clinical and radiographic outcomes of large and massive rotator tears that were unable to be treated with arthroscopic complete repair with an anterior interval slide and margin convergence alone that were treated with
(1) arthroscopic complete repair with an additional posterior interval slide and a subsequent side-to-side repair of the interval slide edge (complete-repair group)  
compared with 
(2) arthroscopic partial repair with margin convergence and without the additional posterior interval slide (partial-repair group) 
at a minimum follow-up of 5 years.

Patient assignment to treatment group was not randomized.

While both groups had significant improvements in clinical outcomes, a retear was identified in almost 90% of the patients: 
22 (88%) of the 25 patients in the complete-repair group and 
28 (85%) of the 33 patients in the partial-repair group.

Patients in the complete-repair group had larger retear sizes (p = 0.001) and reduced acromiohumeral intervals (p = 0.007) compared with those in the partial-repair group.

There were no significant differences in the clinical outcomes between groups.

Comment: This paper failed to examine the effect of repair integrity on the clinical outcome. The observation that patients were clinically improved in spite of an almost 90% repair failure rate suggests that the "repair" may have had little to do with the outcome.

It is of interest that in spite of having "large and massive" tears, these patients had excellent active motion before surgery as shown in the table below.









In that the clinical outcomes were improved in spite of the lack of cuff integrity at followup suggests that these patients may have equally benefitted from a simpler surgery that did not attempt to re-establish cuff integrity, such as a smooth and move procedure (see this link).

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