Biologic scaffold remodeling in a dog model of complex musculoskeletal injury.

Background: Current treatment principles for muscle injuries with volumetric loss have been largely derived from empirical observations. Differences in severity or anatomic location have determinant effects on the tissue remodeling outcome. Biologic scaffolds composed of extracellular matrix (ECM) have been successfully used to restore vascularized, innervated, and contractile skeletal muscle in animal models but limited anatomic locations have been evaluated.

Do iatrogenic punctures of the labrum affect the clinical results of hip arthroscopy?

Purpose: To document the effect of iatrogenic labral punctures (ILPs) on the clinical results of hip arthroscopy.

Methods: From a database of 250 consecutive patients who had their hip arthroscopy performed by the senior author, 50 patients with ILPs were identified. Results of hip arthroscopy in these patients were compared with those of a matched group of 50 patients who did not have labral puncture (NLP).

Extracellular matrix bioscaffolds for orthopaedic applications. A comparative histologic study.

Background: Biologic scaffold materials prepared from extracellular matrix are currently available for the surgical repair of damaged or missing musculotendinous tissue. These scaffolds differ in their species and tissue of origin, methods of processing, and methods of terminal sterilization. The purpose of the present study was to evaluate the host-tissue morphologic response to five commercially available extracellular matrix-derived biologic scaffolds used for orthopaedic soft-tissue repair in a rodent model.