PURPOSE To mechanically test different reconstruction techniques of the anterior cruciate ligament (ACL) under incremental cyclic loading and to evaluate the impact of the level and method of graft fixation on tensile properties of each technique. TYPE OF STUDY In vitro biomechanical study. METHODS Four hamstring and 1 patellar tendon reconstruction techniques were performed on 40 young to ...

STUDY DESIGN An experimental pilot study using an acrylic interbody cage in a dog cervical spine fusion model. OBJECTIVE To compare bony fusion in autologous bone grafting with a novel acrylic cage in terms of preservation of disc height, biomechanical properties, and histologic characteristics. SUMMARY OF BACKGROUND DATA Degenerative diseases of cervical intervertebral discs are commonly t...

Surgical environment is becoming increasingly challenging for the cardiac surgeon since off-pump coronary arteries bypass grafts and minimally invasive approach came up. The suture technique for coronary anastomosis construction is becoming inadequate to meet new surgeons’ demand. Therefore, there is an increasing need for alternative ways to perform coronary bypasses. This article reviews the ...

Magnetic resonance imaging has been used to determine graft integrity and study the remodeling process of anterior cruciate ligament grafts morphologically in humans. The goal of the present study was to compare graft signal intensity and morphologic characteristics on magnetic resonance imaging with biomechanical and histologic parameters in a long-term animal model. Thirty sheep underwent ant...

STUDY DESIGN: An experimental pilot study using an acrylic interbody cage in a dog cervical spine fusion model. OBJECTIVE: To compare bony fusion in autologous bone grafting with a novel acrylic cage in terms of preservation of disc height, biomechanical properties, and histologic characteristics. SUMMARY OF BACKGROUND DATA: Degenerative diseases of cervical intervertebral discs are commonly tr...

PURPOSE The purpose of this study was to evaluate the initial biomechanical properties of a fan-folded, single-loop construct of fan-folded fascia lata allograft in comparison to other graft tissues currently being used for anterior cruciate ligament (ACL) reconstruction. METHODS Eighteen fascia lata specimens were harvested from 11 donors and fan folded through a proprietary process. Bone-pa...

PURPOSE To perform a systematic review of the described anterolateral ligament (ALL) reconstruction techniques, biomechanical performance, and clinical outcomes of ALL reconstruction in the setting of concurrent anterior cruciate ligament (ACL) reconstruction. METHODS A systematic review was performed according to PRISMA guidelines using the Cochrane Database of Systematic Reviews, the Cochra...

Magnesium-based interference screws may be an alternative in anterior/posterior cruciate ligament reconstruction. The well-known osteoconductive effects of biodegradable magnesium alloys may be useful. It was the purpose of this study to evaluate the biomechanical properties of a magnesium based interference screw and compare it to a standard implant. A MgYREZr-alloy interference screw and a st...

INTRODUCTION: The use of the anterior cervical plates has improved the postoperative fusion rates following multiple level cases. There are a number of plates available today and each plate addresses a different design philosophy. Fixed angle plates maintain a constant angle between the screw and the plate and have been implicated in stress shielding of the interbody graft resulting in pseudoar...

We evaluated the biomechanical properties of two different methods of fixation for unstable fractures of the proximal humerus. Biomechanical testing of the two groups, locking plate alone (LP), and locking plate with a fibular strut graft (LPSG), was performed using seven pairs of human cadaveric humeri. Cyclical loads between 10 N and 80 N at 5 Hz were applied for 1,000,000 cycles. Immediately...