Open arthrolysis is an effective way to treat elbow stiffness. However, previous approaches led to significant surgical trauma. The goal of the current study was to evaluate the outcome of open arthrolysis with limited medial and lateral approaches combined with hinged external fixation to treat elbow stiffness. A total of 18 patients (18 elbows) with elbow stiffness were retrospectively review...

Forty failed hinged arthroplasties of the knee were revised by the insertion of another hinged implant. In 14 cases the prosthesis used at the revision operation was similar to the primary implant; in 26, a hinge with an elongated femoral stem was used, usually replacing part of the femoral shaft. In seven of these knees an elongated tibial stem was also required, though the tibial shaft was re...

Joint stiffness is a common complication of elbow trauma. Treating elbow stiffness is challenging, especially in patients with severe elbow stiffness with distal humeral nonunion. To improve treatment outcomes, the authors applied a hinged external fixator after performing open reduction and internal fixation and evaluated the clinical outcome. Between 2005 and 2011, eleven patients with elbow ...

We provide an exact performance attribution for levered strategies. The attribution includes some familiar elements: return magnification due to leverage, borrowing costs, trading costs, and the variance drag; while familiar, these elements are sometimes downplayed in backtests of levered strategies. In addition, we find empirically that the covariance between return of the source portfolio and...

Le granulome facial de Lever se produit le plus souvent chez l'homme de race blanche. Cliniquement, les lésions apparaissent comme des papules érythémateuses, des nodules ou plaques. Le granulome facial est d'étiologie inconnue, mais des facteurs prédisposant sont possibles incluant l'exposition actinique et les traumatismes. La confirmation du diagnostic est faite par une évaluation histologiq...

Truss structures are widely used for the support of structural loads in applications where minimum mass solutions are required. Their nodes are normally constructed to resist rotation to maximize their stiffness under load. A multi-link node concept has recently been proposed that permits independent rotation of tetrahedral trusses linked by such a joint. High authority shape morphing truss str...

Background Diagnosing an anterior cruciate ligament (ACL) rupture based on a physical examination remains a challenge for both surgeons and physical therapists. The lever sign test was developed to overcome the practical limitations of other tests and to optimize diagnosis. An evaluation of the measurement properties of the lever sign test is needed to make adequate interpretations in practice....

A novel method that uses a small mechanical lever has been developed to directly calibrate the lateral sensitivity of the optical lever in the atomic force microscope (AFM). The mechanical lever can convert the translation into a nanoscale rotation angle with a flexible hinge that provides an accurate conversion between the photodiode voltage output and torsional angle of a cantilever. During t...