About this trial
The use of biologic acellular matrices for the surgical augmentation of rotator cuff lesions has greatly expanded inrecent years. The study team patented a method for removing cells from human dermis (Acellular Dermal Matrix), maintaining unaltered biological and structural integrity. Acellular Dermal Matrix has been succesfully used for rotator cuff surgical repair augmentation beside in a limited number of patients. The aim of the project is to demonstrate the therapeutical efficacy of this strategy in patients affected by rotator cuff massive tears. Acellular Dermal Matrix will be also combined with autologous orthobiologics.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
patients affected by large to massive lesion according to Gerber involving supraspinatus and infraspinatus tendons
tendon retraction <=3 according to Thomazeau
fatty degeneration <=3 according to Goutallier
possibility to obtain tendon reduction,
Disqualifiers
patients affected by osteoarthritic degeneration,
frozen shoulder,
symptomatic acromioclavicular arthritis,
revision surgeries,
Trial design
Parallel
Treatments tested in this trial
Acellular Dermal Matrix
Other interventionPatinets will be treated with acellular dermal matrix with standard arthroscopic technique performed as per normal clinical practice. For the tendon repair the acellular dermal matrix patch will be placed over the repaired tendon with dedicated sutures and anchors.
Acellular Dermal Matrix with autologous orthobiologics
Other interventionPatinets will be treated with acellular dermal matrix enriched with autologous humeral bone marrow concentrate and subacromial bursa with standard arthroscopic technique. Humeral bone marrow concentrate will be harvested from the proximal humeral head inthe operating room and concentrated by an automatic close system.
Treatment groups
Trial outcomes
Primary outcomes
re-tear rate
Presence/absence of re-tear on magnetic resonance imaging
Secondary outcomes
cell yeld
number of stromals cells contained in the humeral bone marrow concentrate
subacromial bursa
Half of the subacromial bursal tissue wll be assessed for determining the cell yield (number of stromal cells contained for mg of tissue) and half for histological processing
Sponsors and contacts
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