Research has shown that adding simulated linear head oscillation to radial optic flow displays enhances the illusion of self-motion in depth (ie linear vection). We examined whether this oscillation advantage for vection was due to either the added motion parallax or retinal slip generated by insufficient compensatory eye movement during display oscillation. We constructed radial flow displays ...

AbstractIntroduction In chronic radial head dislocation, the may enlarge and become dome-shaped. To date there is no validated tool to quantify deformation predict its influence on surgical outcome. This study assesses potential value of volume surface calculations obtained by quantitative three dimensional CT scanning (Q3DCT) in workup for corrective surgery pediatric patient...

93 RADIOLOGIC TECHNOLOGY November/December 2005, Vol. 77/No. 2 Dan L. Hobbs, M.S.R.S., R.T.(R)(CT)(MR), is an assistant professor in the department of radiographic science at Idaho State University in Pocatello. The elbow is frequently involved in trauma and is 1 of the most commonly radiographed joints in emergency departments. Often, the trauma results from a fall on an outstretched hand and ...

BACKGROUND Lateral ulnar collateral ligament (LUCL) reconstruction requires proper understanding and identification of anatomic structures about the lateral elbow. The insertion site of the LUCL is based on the supinator tubercle. PURPOSE To characterize the supinator tubercle relative to other surrounding anatomic landmarks. STUDY DESIGN Descriptive laboratory study. METHODS Computed tom...

The case presents an isolated irreducible anteromedial dislocation of radial head due to biceps tendon interposition on a 14-year-old female patient. After an unsuccessful closed reduction, a lateral approach of the left elbow was carried out through Kocher's interval. Given that no pathology was found on the radiohumeral joint, the approach was extended distally. This revealed that the biceps ...

Loeys-Dietz syndrome is characterised by vascular aneurysms, hypertelorism, and a bifid uvula. We report on an 11-year-old boy with Loeys-Dietz syndrome who presented with bilateral radial head dislocations and severe osteopaenia with changes of avascular necrosis in both hips causing an out-toeing, wide gait. Considering the poor prognosis for elbow movement and possible radial head dysplasia,...

BACKGROUND Knowledge of the size and shape of radial head is essential for construction of radial head prosthesis. Further, the measurements of bicipital tuberosity and its angular relationship to radial head are significant in surgical techniques, like in the reconstruction of biceps tendon. Even the morphometry of the distal radius is significant in numerous clinical orthopedic situations suc...