Accuracy in Screw Selection in a Cadaveric, Small-Bone Fracture Model

Fluoroscopic imaging overestimates the screw tip to subchondral bone distance in a cadaveric model of slipped capital femoral epiphysis

PURPOSE Intra-operative imaging plays a key role in screw placement for slipped capital femoral epiphysis (SCFE). Complications have been associated with inadequate screw position. The purpose of this study was to evaluate computed tomography (CT) (3D fluoroscopy) and standard fluoroscopy (C-arm) images as compared with direct anatomic measurement to determine final screw position in a cadaveri...

Accuracy of Pedicle Screw Placement with Robotic Guidance System: A Cadaveric Study.

STUDY DESIGN A cadaveric study. OBJECTIVE To investigate the accuracy of pedicle screw placement using a robotic guidance system (RGS). SUMMARY OF BACKGROUND DATA RGS is a unique surgery assistance-apparatus. Although several clinical studies have demonstrated that RGS provides accurate pedicle screw placement, very few studies have validated its accuracy. METHODS A total of 216 trajector...

evidence of adverse selection in irans health insurance market

در این تحقیق به مطالعه وجود انتخاب نامساعد(کژ گزینی) در بازار بیمه درمان تکمیلی ایران پرداخته شده است. داده های مورد نیاز توسط پرسشنامه و به روش نمونه گیری خوشه ای جمع آوری شده است. پرسشنامه ها در میان افراد شاغل ساکن شهر تهران توریع شد. در این تحقیق با استفاده از تخمین دو مدل لجستیک و به دست آوردن ضریب همبستگی میان تقاضای بیمه درمان تکمیلی و رخداد خسارت به بررسی موضوع مورد نظر پرداخته شده است....

Percutaneous Bone Marrow Grafting in Radial Fracture in Rabbits

How 3D patient-specific instruments improve accuracy of pelvic bone tumour resection in a cadaveric study

OBJECTIVES To assess the accuracy of patient-specific instruments (PSIs) versus standard manual technique and the precision of computer-assisted planning and PSI-guided osteotomies in pelvic tumour resection. METHODS CT scans were obtained from five female cadaveric pelvises. Five osteotomies were designed using Mimics software: sacroiliac, biplanar supra-acetabular, two parallel iliopubic an...