We present a hypothesis of tyrannosaurid foot function termed the "tensile keystone model," in which the triangular central metatarsal and elastic ligaments dynamically strengthened the foot. The tyrannosaurid arctometatarsus, in which the central metatarsal is proximally constricted, displays osteological correlates of distal intermetatarsal ligaments. The distal wedge-like imbrication of tyra...

BACKGROUND Incomplete sesamoid reduction is a potential risk factor for the recurrence of hallux valgus. The purpose of this study was to radiologically investigate changes in sesamoid position after chevron osteotomy and the open lateral soft tissue procedure. METHODS Sixty-eight feet that underwent operative correction for hallux valgus deformity were reviewed consecutively. The hallux valg...

The aims of this study were to identify the role and sites of action of serine proteinases (SPs) in bone resorption, a process which involves a cascade of events, the central step of which is the removal of bone matrix by osteoclasts (OCs). This resorbing activity, however, is also determined by recruitment of new OCs to future resorption sites and removal of the osteoid layer by osteoblasts (O...

Treatment of static deformations the forefoot with valgus deformation first toe remains relevant today. Objective. Toanalyze results surgery severe hallux using corrective proximal wedge-shaped osteotomy I metatarsalbone and Lapidus arthrodesis. Methods. The surgical treatment 104 women (147 feet) halluxvalgus according to Mann classification were evaluated. Age — 27‒65 years, follow-up period ...

BACKGROUND The Pedar-X is one of the newer versions of in-shoe pressure measuring devices and the current study aimed to assess the repeatability of this device. METHODS Twenty-seven healthy male volunteers were recruited and requested to walk on a 26-feet walkway wearing appropriate sized standardised off-the-shelf neutral running shoes (Donnay International). The Pedar-X insole was sandwich...

First metatarsophalangeal arthrodesis has been used to treat end-stage arthritis of the great toe (e.g., gout, post-traumatic, infection), severe hallux valgus deformity, caused by neuromuscular disorders, rheumatoid forefoot primary varus, and rigid plantarflexion deformities, as well a salvage procedure for failed previous operation toe. As with any procedure, proper positioning in first is u...

Although the success story of surgical fracture treatment led to a tremendous improvement outcome for certain fractures such as femur or tibia shaft fractures, overall benefit versus conservative remains controversial several types fractures. For this sake, we carried out narrative review high-level evidence studies comparing outcomes in with debates on value therapy clavicle, proximal humerus,...