PURPOSE Bone drilling is a major part of orthopaedic surgery performed during the internal fixation of fractured bones. At present, information related to drilling force, drilling torque, rate of drill-bit penetration and drill-bit rotational speed is not available to orthopaedic surgeons, clinicians and researchers as bone drilling is performed manually. METHODS This study demonstrates that ...

BACKGROUND Fracture risk is increased in chronic kidney disease (CKD), but assessment of bone fragility remains controversial in these patients. This study investigated the associations between bone turnover markers, bone mineral density (BMD), and prevalent fragility fracture in a cohort of kidney transplantation candidates. METHODS Volumetric BMD of spine and hip was measured by quantitativ...

It is generally acknowledged that short-segment pedicle screw instrumentation is the preferred surgical method for thoracolumbar fractures. However, the use of short-segment instrumentation with or without intermediate screws at the fracture level remains controversial.We retrospectively evaluated 44 patients (28 men, 16 women) with unstable thoracolumbar fractures. The patients were divided in...

Bone is a complex and very important multi-constituent bio-composite. In this work, we focus on the arrangement of bone constituents from the nanoscopic to the microscopic scale, and investigate the influence of their arrangements on the fracture mechanisms of the whole composite. We find that bone, on the nanoscopic scale, consists of mineralized collagen fibrils held together by a non-fibrill...

Hand fracture fixation in mutilating injuries is characterized by multiple challenges due to possible skeletal disorganization and concomitant severe injury of soft tissue structures. The effects of skeletal disruption are best analyzed as divided into specific locales in the hand: radial, ulnar, proximal, and distal. Functional consequences of injuries in each of these regions are discussed. A...

BACKGROUND Femoral neck fractures are a common occurrence in patients suffering from osteoporosis, while intracapsular hip fracture is rare in cases of osteoarthritis of the hip. Previous histomorphometric studies have emphasized the association between bone microarchitecture and the risk of low-impact fractures in osteoarthritis and osteoporosis patients. However, the strength of bone material...

Autogenous block bone grafts have been highly successful in treating human periodontal defects, restoring esthetics, and developing adequate bone volume for dental implant placement. Limitations in available donor bone, the need for an added surgical procedure, and other potential complications have made the use of allogenic bone graft materials an important alternative. One patient described i...

Bone fracture is a complete or partial breakage of the bone structure. Fracture repair considered regenerative process whereby healing occurs through formation new tissue indiscernible from uninjured bone. reducing and realigning fractured ends together in other to achieve healing. Caffeine, 1, 3, 7-trimethylxanthine, an alkaloid present more than one hundred plant species. It used as stimulant...

Although the methods of reduction and fixation of fractures Have been constantly changing since the days of Hippocrates the method of healing has never changed, and never will. It takes a very considerable force to fracture a normal bone: If the bone breaks after a trivial accident the fracture is said to be Pathological. Bone shows an exception from the normal healing of other structures which...

Immediate implant placement is most commonly indicated when tooth extraction performed owing to pathologies such as unrestorable caries or fractures. The primary advantage of this treatment modality the diminution healing time and reduced alveolar process resorption. Regenerative materials can be used an adjunct with implants in order triumph high survival rate enrich good esthetic outcome. Thi...