UNIVERSITY OF PENNSYLVANIA ORTHOPAEDIC JOURNAL comminution. Correction to a volar tilt of 11 1/2 5 degrees has been shown to restore biomechanical function of the wrist. Prior to the use of volar locking plates, in order to restore volar tilt it would be necessary to use a dorsal approach, bone graft, and a dorsal plate. In the case discussed in this paper osteotomy and bone graft was used due ...

The anterior cruciate ligament (ACL) is the most commonly injured intra-articular ligament of the knee. The insufficient vascularization of this tissue prevents it from healing completely after extreme tearing or rupture, creating a need for ACL grafts for reconstruction. The limitations of existing grafts have motivated the investigation of tissue-engineered ACL grafts. A successful tissue-eng...

The use of autografts versus allografts for anterior cruciate ligament (ACL) reconstruction is controversial. The current popular options for ACL reconstruction are patellar tendon or hamstring autografts, yet advances in allograft technologies have made allogeneic grafts a favorable option for repair tissue. Despite this, the mismatched biomechanical properties and risk of osteoarthritis resul...

OBJECTIVES We investigated the biomechanical characteristics of anterior or posterior tibial tunnel placement of the soft tissue graft with a soft tissue interference screw in anterior cruciate ligament (ACL) reconstruction. METHODS Twelve bovine tibiae and digital extensor tendons were divided into two homogeneously equal groups after they were stripped of all soft tissues. Tibial tunnels we...

Tendon never restores the complete biological and mechanical properties after healing. Several techniques are available for tissue-engineered biological augmentation for tendon healing like stem cells. Recently, synovium has been investigated as a source of cells for tissue engineering. In the present study, we investigated potentials of fibroblast like synoviocytes (FLSs) in tendon healing. Si...

background: autoregulation of blood flow is a marvelous phenomenon balanc- ing blood supply and tissue demand. although many chemically-based explanations for this phenomenon have been proposed and some of them are commonly used today, biomechanical aspects of this phenomenon was neglected. the biomechanical aspect provides insights to us to model vessel diameter changes more precisely and comp...

Freeze-drying and gamma irradiation are the techniques widely use in tissue banking for preservation and sterilization of tissue grafts respectively. However, the effect of these techniques on biomechanical properties of bovine pericardium is poorly known. A total of 300 strips of bovine pericardium each measured 4 cm 1 cm were used in this study to evaluate the effect of freeze-drying on biome...

ABSTRACT Introduction: Recent studies have shown that the likelihood of semitendinosus-gracilis graft rupture is inversely correlated to its diameter. A can be prepared in a five-strand or four-strand fashion increase However, biomechanical superiority grafts still under debate. Objective: This study aimed evaluate characteristics matched and human grafts. Methods: We evaluated tendons harveste...

Anterior cruciate ligament (ACL) reconstruction is one of the most commonlyperformed orthopedic surgeries in this country. As ACL reconstruction techniques have evolved and improved dramatically over the past few years from nonanatomic to anatomic, controversies regarding graft selection remain. While conclusions drawn from past studies regarding graft choice in ACL surgery have resulted from p...