title: Study of the porcine dermal collagen repair patch in morpho-functional recovery of the rotator cuff after minimum follow-up of 2.5 years.
abstract: Tendon augmentation grafts have the potential to facilitate the repair of massive or otherwise unrepairable rotator cuff tears. In our clinic, between 2009 and 2013, 25 patients underwent surgery to treat massive symptomatic rotator cuff tears with porcine dermal collagen patch. This study is a clinical and instrumental assessment of 9 patients with the longest follow-up. These patients were evaluated with Constant score, the American Shoulder and Elbow Surgeons Evaluation Form, ultrasound imaging, magnetic resonance imaging, and electromyography. The clinical evaluations have shown good outcomes. The magnetic resonance imaging results were comparable with those of the ultrasound scan. In all cases, we found covering of humeral head, centering of the humeral head, maintenance of the tropism of the supraspinatus, no appearance of fatty degeneration, no worse in cases with fatty degeneration. With the electromyographic examination a complete functional recovery was observed with the possibility of performing maximal contraction against resistance in all cases. We believe that porcine dermal collagen is effective as an augmentation graft in the treatment of chronic extensive rotator cuff tears, providing excellent pain relief with an improvement in active ranges of motion and strength.
authors: University of Pisa Pisa, Italy.
authors: Stefano
authors: S
authors: Giannotti
authors: University of Pisa Pisa, Italy.
authors: Marco
authors: M
authors: Ghilardi
authors: University of Pisa Pisa, Italy.
authors: Giacomo
authors: G
authors: Dell'osso
authors: University of Pisa Pisa, Italy.
authors: Luca
authors: L
authors: Magistrelli
authors: University of Pisa Pisa, Italy.
authors: Giulia
authors: G
authors: Bugelli
authors: University of Pisa Pisa, Italy.
authors: Frederica
authors: F
authors: Di Rollo
authors: University of Pisa Pisa, Italy.
authors: Giulia
authors: G
authors: Ricci
authors: University of Pisa Pisa, Italy.
authors: Rosanna
authors: R
authors: Calabrese
authors: University of Pisa Pisa, Italy.
authors: Gabriele
authors: G
authors: Siciliano
authors: University of Pisa Pisa, Italy.
authors: Giulio
authors: G
authors: Guido
mesh_terms: D000818:Animals; D001705:Bioprosthesis / Q000009:adverse effects / Q000706:statistics & numerical data; D003094:Collagen / Q000009:adverse effects / Q000627:therapeutic use; D005500:Follow-Up Studies; D006801:Humans; D016059:Range of Motion, Articular / Q000502:physiology*; D020127:Recovery of Function; D017006:Rotator Cuff / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D013552:Swine; D016896:Treatment Outcome
chemical_list: D003094:Collagen