A new arthroscopic approach for traumatic instability has been developed with which avulsed capsulolabral tissue can be effectively attached to the glenoid articular rim with sutures, providing anatomic reattachment and effective deepening of the glenoid concavity similar to that achieved by open repair. This technique does not depend on fixation devices, trans-scapular drilling, or implantatio...

The present study was designed to evaluate the effects of platelet growth factors and periosteal mesenchymal stem cells on bone healing process, radiographically. Forty male White New Zealand rabbits in five equal groups were used in this study. A 2 mm full thickness bone defect was made in left radial bone of each animal. In group A (control) the defect was left with no medical intervention. I...

Background: Bone tissue engineering requires materials that are biocompatible, mechanically suited for bone function, integrated with the host skeleton, and support osteoinduction of the implanted cells for new bone formation. The aim of this study was to compare the osteogenic potential of xenograft with hydroxyapatite/β- tricalcium phosphate (HA/β-TCP) scaffold. Methods: New Zealand rabbits (...

BACKGROUND Glenoid component survival is critical to good long-term outcomes in total shoulder arthroplasty. Optimizing the fixation environment is paramount. The purpose of this study was to compare two glenoid cementing techniques for fixation in total shoulder arthroplasty. METHODS Sixteen cadaveric specimens were randomized to receive peg-only cementation (CPEG) or full back-side cementat...

Introduction: The use of BMP-2 plays an important role in the treatment of extensive bone defect. However, data about the optimal dosage of BMP-2 in the massive bone defect cases is rare. Material and Method: Twenty-five SD rats were randomly divided into a control group ofhydroxyapatite (HA) alone (Group I), HA+BMP-2 1µg/mL (Group II), HA+BMP-2 5 ug/mL (Group III), HA+BMP-2 10 µg/mL (Gro...

Background Quantifying glenohumeral bone loss is key in preoperative surgical planning for a successful Bankart repair. Hypothesis Simple radiographs can accurately measure bone defects in cases of recurrent shoulder instability. Study Design Cohort study (diagnosis); Level of evidence, 2. Methods A true anteroposterior (AP) view, alone and in combination with an axillary view, was used t...

INTRODUCTION: Loosening of glenoid components in total shoulder arthroplasty is a common clinical problem which can necessitate revision surgery. The mechanism of loosening is poorly understood and may be related to factors including implant design, component fixation techniques, and to tensile stresses at the interfaces. We are unaware of any studies that have examined the fundamental aspects ...

BACKGROUND The integrity of the glenoid defines the surgical treatment in anterior shoulder instabilities. The reliability of plain radiographs to detect anterior glenoid rim deficiencies was determined. MATERIALS AND METHODS The anterior sclerotic glenoid line (SGL) was assessed on anteroposterior radiographs of 86 shoulders (34 anterior instabilities, 15 posterior instabilities, 37 stable) ...