CONTEXT The Ottawa Knee Rule is a previously validated clinical decision rule that was developed to allow physicians to be more selective and efficient in their use of plain radiography for patients with acute knee injuries. OBJECTIVE To assess the impact on clinical practice of implementing the Ottawa Knee Rule. DESIGN Controlled clinical trial with before-after and concurrent controls. ...

We report a rare case of intraosseous neurilemmoma of the mandible, with an emphasis on radiographic findings. The tumor, located mainly in the premolar region, presented as an expansive, unilocular, well-defined, radiolucent lesion on plain radiography. No dilatation of the mandibular canal was identified. MR imaging helped to identify the solid nature of the tumor. A biopsy was necessary to m...

A 63 year old woman, presenting as an emergency provides an useful example of the difficulties in diagnosing acute appendicitis when faced with an atypical history. This patient underwent plain radiography, computed tomography, repeat biochemical investigations and finally an exploratory laparotomy before the diagnosis of acute appendicitis was made. The case was confounded by a highly mobile c...

Fractures of the clavicle in the neonate are usually diagnosed by clinical examination and confirmed by plain radiography. Exposure of newborn infants to irradiation should be avoided if possible. Following the clinical examination of 2978 neonates, 15 had suspected fractures of the clavicle. All were confirmed by ultrasound. In combination with clinical examination, ultrasound is a satisfactor...

Injuries to the first rib synchondrosis are uncommon in sport. The potential for serious complications following posterior displacement is similar to that seen with posterior sternoclavicular joint dislocation. Clinical examination and plain radiography may not provide a definitive diagnosis. Computerised tomography is the most appropriate imaging modality if this injury is suspected. Posterior...

Limy bile is a relatively rare condition in which a radiopaque material is visible in the gallbladder, extending rarely into the bile duct, on plain radiography. Acute cholangitis or cholecystitis caused by limy bile is a very rare condition. There are no definite treatment guidelines for limy bile, but in most cases with cholangitis or cholecystitis, laparoscopic cholecystectomy has been the p...

A case of obstruction of the colon by a solitary, large gall-stone is described. This rare event usually occurs in elderly females in whom there is frequently an underlying pathological condition at the site of obstruction in the colon. The calculus usually migrates via a cholecystocolic fistula. Diagnosis may be assisted by plain abdominal X-ray and contrast radiography. Immediate operative tr...

Despite the advent of sophisticated imaging systems, plain radiography continues to be a valuable outcome variable in clinical trials of inflammatory disorders for a number of reasons. This paper discusses the pros and cons of the different ways in which radiographic data in trials is presented; the minimum time needed to demonstrate radiographic progression in the context of a clinical trial; ...

BACKGROUND Congenital radioulnar synostosis is a rare malformation of the upper limb, with functional limitations of the limb. CASE REPORT A 10-year-old child with pain and restricted mobility of the elbow joint was admitted to the hospital. Plain film radiography and CT examination was performed. Radiological examinations showed a congenital radioulnar synostosis. The child underwent surgica...

To demonstrate the phylogenetic changes that have led to the current form of the human skull, dried skulls of various representative vertebrates were examined using plain radiography and high-resolution computed tomography. The latter was chosen rather than pluridirectional tomography in anticipation of its future role as the major method for imaging the skull base. The phylogenetic history of ...