Diagnosing ulnar-sided carpometacarpal joint dislocation is difficult, and more than half of injuries are missed on initial examination. The authors hypothesized that measuring the angle between the capitate and the metacarpals (capitate-metacarpal angle) on a plain radiograph would provide a simple, reliable tool to aid in the diagnosis of ulnar-sided carpometacarpal dislocation. This study re...

BACKGROUND To date, only plain radiographic definitions of normal anatomical parameters have been described. Our study aims to describe normal anatomic measurements of small and ring metacarpals using a novel digital reconstruction technique based on raw CT image data. We hypothesize that current plain radiographic data incorrectly describes normal metacarpal anatomy in the lateral plane. MET...

The purpose of this study is to gain a better understanding of the changes due to osteoarthritis (OA) occurring in the thumb carpometacarpal (CMC) joint by comparing quantitative geometrical measurements in computed tomography scans of healthy and pathological joints in various stages of OA. The measurements were (1) the subluxation of the metacarpal on the trapezium, (2) distance from the scap...

OBJECTIVES Low levels of oxygen has been shown to be involved in the induction of osteogenesis, particularly in bone repair. It is unknown whether hypoxia leads to osteogenesis at the hypoxia prone skeletal sites in limited systemic sclerosis. This study determined the total and trabecular volumetric bone mineral density (vBMD) at the hypoxia prone site of the juxta-articular metacarpal bone. ...

DESCRIPTION A 22-year-old man, right-hand dominant, presented with pain in his left hand after a severe crush injury at work using a forklift. Deformity, open fractures, swelling over the dorsum of his hand, and paresthesias to the index and middle digits were evident during initial examination. He was vascularly intact. Radiographs showed markedly comminuted fractures of the index metacarpal n...

Functional reach (FR) significantly increases with additional sensory information from the fifth metacarpal surface of the dominant hand. The purpose of this study was to determine the relationship between the innervation density of the skin above the fifth metacarpal surface of the palm and the increase of FR with an additional light touch. The results show a moderate negative correlation betw...

BACKGROUND The aim of this study was to investigate clinical outcomes of fifth metacarpal neck fractures using antegrade single elastic nail and to explore ideal puncture point to avoid iatrogenic ulnar nerve injury. METHODS A single elastic nail with suitable diameter was used in 27 cases of fifth metacarpal neck fractures with dorsal angulation over 45°. An initial entry point was perforate...

RATIONALE Metacarpal and phalanx defects with soft tissue loss were suggested to be reconstructed by vascularized bone flap. The fibular osteocutaneous flap is a preferred method. Three-dimensional virtual planning has successfully applied in mandibular reconstruction with fibular free flap. We applied three-dimensional virtual planning in precise fibula flap harvest to maintain the continuity ...

Ectrodactyly is a rare anomaly seen in the appendicular skeleton and characterized by cleft or split between bone soft tissue distal regions of extremities. may be associated with absence hypoplasia several carpal-metacarpal bones, phalanx duplication, metacarpal synostosis. In this case report, 2-years-old mixed breed male dog was presented withhold up left forelimb inspectional abnormality cl...

BACKGROUND Metacarpal fractures are common, accounting for 40 % of all hand injuries. The use of plates for the fixation of these fractures allows early aggressive hand therapy post-operatively, reducing post-operative stiffness. Traditionally, bicortical fixation is the standard practice, where both dorsal and palmar cortices of the metacarpal are drilled through, with screws engaging both cor...