Pedicle screws are the main type of instrumentation used in the lumbar spine via the posterior approach. The accuracy of their insertion is always a concern because the malposition of screws is associated with a potential risk of iatrogenic injury of any neurovascular structure they pass. Fortunately, spinal cord and cauda equina injuries are rare. This 18-year-old paraplegic woman presented mo...

Fatal oesophageal rupture is described as a complication of the management of bleeding oesophageal varices with repeated sclerotherapy and tamponade using the Sengstaken-Blakemore tube. The importance of chest radiographs is stressed in the early detection and prevention of malposition of the Sengstaken-Blakemore tube, as inflation of the gastric balloon in the oesophagus can result in oesophag...

Management of lead malposition is crucial to avoid complications and is carried out on case-by-case bases. The 12-lead ECG during pacing and chest X-ray are essential during initial workup and recommended for new patients to the device clinic. Echocardiography and CT scan are important to confirm the location and plan appropriate therapy.

Malposition of the acetabular component is a leading cause of dislocation in total hip arthroplasty (Woo, 1982). The two most influential surgeon-controlled variables are thought to be abduction (tilt) and anteversion of the cup. Empirically, while 30-50° of tilt and 5-25° of anteversion is felt to be a “safe-zone” (Morrey, 1992), dislocation nevertheless remains a disturbingly frequent occurre...

BACKGROUND Acellular dermal matrix has been used for over a decade in primary breast reconstruction. Few articles have specifically examined its use in revision breast reconstruction for fold malposition, capsular contracture, rippling, and symmastia. METHODS One hundred thirty-five revision breast reconstructive procedures using acellular dermal matrix (AlloDerm) in 118 patients (154 breasts...