Historical Background Anterior lumbar interbody fusion (ALIF) was first used AQ1 in the treatment of tuberculosis and lumbar spondylolis-thesis. 1−3 Although described by Capener 4 in 1932 as the " ideal'' operation for spondylolisthesis, he further elaborated that " the technical difficulties of such procedure, however, preclude their trial.'' This statement was soon to be proven wrong by nume...

• Forty-seven dowelled cross-laminated timber (CLT) connections were tested. Increased row spacing and end distance significantly increased ductility. Reinforcement by screws or threaded dowels with nuts enhanced performance. 3-ply (135 mm), 5-ply (175 mm ), 7-ply (275 mm) CLT panels employed. Overstrength ductility of determined. Dowel embedment tests performed to determine theoretical overstr...

Simultaneous prosthetic joint infection of ipsilateral hip and knee arthroplasties is often accompanied by significant bone loss and presents a challenging reconstructive problem. Two-stage reconstruction is favored and requires the placement of a total femur spacer, which is not a commercially available device. We describe a surgical technique, reporting on 2 cases in which a customized total ...

This study assesses the reach to grasp movement of eight Parkinson and eight control subjects. The reach was of either 15, 27.5 or 40 cm. The grasp was either of a small (0.7 cm) or a large diameter (8 cm) dowel. When comparing Parkinson to control subjects, no differences were found in the regulation of movement parameters according to changes in object distance or size. However, for Parkinson...

Shrink-fitting, a common bonding technique in metal assemblies, was used for mortise and tenon wood joints. The joints had considerable strength. Shrink-fitting yielded joint strengths comparable to those obtained by using several welded dowels. Increasing the number of welded dowels, however, produced joints of higher strength than those bonded just by shrink-fitting. Combining in the same joi...

Several approaches to the matter creation problem in the context of cosmological models are summarily reviewed. A covariant formulation of the general relativistic imperfect simple fluid endowed with a process of matter creation is presented. By considering the standard big bang model, it is shown how the recent results of Prigogine et alii [1] can be recovered and, at the same time their limit...

The root canal space prepared for a foundation restoration is often elliptic or too large, and an unintentionally prepared undercut is sometimes detected. This article presents a dental laboratory technique to reconstruct an endodontically treated tooth using a pre-impregnated fiber-reinforced composite (FRC) system instead of a conventional fiber post. Particular attention was paid to increase...

Innovations in material science and clinical techniques have expanded the number of treatment options available for nonvital anterior teeth. These options include the use of composite to fill the access opening with no additional treatment, crown placement, orthodontic extrusion, crown lengthening with or without orthodontic extrusion, dowel restorations with crown placement, and fixed bridge o...