Significance of and Expression in Head and Neck Adenoid Cystic Carcinoma.

Background/aim: Adenoid cystic carcinoma (ACC) is an aggressive neoplasm even though it has low-grade histological appearance and slow growth. The aim of this study was to identify the immunohistochemical and molecular characteristics of ACC, as well as their correlation with the clinical course of patients.

Patients And Methods: This is a retrospective multicenter analysis.

Fixation of femoral shaft fractures with a flexible bundle-type nail.

In a prospective study, 31 consecutive patients with a femoral shaft fracture were treated with the Marchetti-Vicenzi intramedullary flexible bundle-type nail. Open reduction of the fracture was necessary in 25 of the 31 patients (81%). Twenty-five of the 31 fractures (81%) united within 2.

The clinical performance of a small diameter tibial nailing system with a mechanical distal aiming device.

We present the clinical and radiographic results of a prospective study with the Orthofix tibial nailing system. The ease and safety of distal locking with the use of an improved targeting system was also evaluated. Sixty fresh tibial fractures in 60 patients with a mean age of 37.

Surgical treatment of 35 volar Barton fractures. No need for routine decompression of the median nerve.

35 patients with volar Barton fractures were treated operatively from 1985-1994. The injury was due to a high velocity motor vehicle accident in 20 patients. All fractures were closed without major carpal injuries.

Results of surgical treatment of tibial plafond fractures.

To clarify which factors influence the final result of surgical management of plafond or pilon fractures, 66 patients with 67 pilon fractures treated at the Orthopaedic Department of the University of Athens between 1978 and 1993 were reviewed. There were eight (11.95%) Type I, 33 (49.

Early detection of progression in adolescent idiopathic scoliosis by measurement of changes in back shape with the Integrated Shape Imaging System scanner.

Study Design: A retrospective study of 78 patients with right thoracic idiopathic scoliosis was done.

Objectives: To evaluate the reliability of the integrated Shape Imaging System scan (Oxford Metrics Ltd, Oxford, UK) in detecting progression of scoliosis and the use of back shape data in predicting scoliosis progression.

Summary Of Background Data: At first presentation and every 3-6 months during the follow-up period, all patients underwent integrated Shape Imaging System scans and radiographic examinations, from which the Cobb angle was measured.

Operative treatment of type C intra-articular fractures of the distal humerus: the role of stability achieved at surgery on final outcome.

We report the results of 75 patients with type C intra-articular fracture of the distal humerus treated operatively by two methods and followed up for a mean period of 48.2 months. Minimal osteosynthesis and joint immobilization was used in 21 cases while the remaining 54 patients were treated according to AO recommendations.

Closed interlocked nailing in comminuted and segmental femoral shaft fractures.

One hundred eight femoral shaft fractures in one hundred six adults were treated by closed intramedullary interlocked nailing. Ninety-two fractures were severely comminuted and 16 fractures were segmental. The procedures were done with the patients in the supine position.

Surgical treatment of acetabular posterior wall fractures.

This is an analysis of 52 fractures of the posterior wall of the acetabulum treated operatively and reviewed 2-15 years after injury. In 48 cases the fracture was associated with posterior dislocation of the hip, which was treated by closed reduction soon after the injury. In all but two of the cases there was a displaced single or comminuted fragment resulting in a large defect in the posterior acetabular wall; they were treated by open reduction and internal fixation to restore joint congruity and stability.

Ipsilateral fractures of the femur and tibia.

From October 1987 to September 1990, 32 patients with ipsilateral fractures of the femur and the tibia were treated. There were 20 men and 12 women with a mean age of 27 years (range 18-75 years). All were caused by road accidents.

Surgical treatment of central acetabular fractures.

Surgical treatment is indicated in most displaced acetabular fractures in young adults. The fractures are generally intraarticular and almost invariably involve the weight-bearing area of the acetabulum. Complete or near anatomic reduction is essential for an excellent and long-standing recovery of the hip joint, and this is extremely difficult to accomplish by conservative management.

Effect of hip dislocation on the blood supply to the femoral head. An experimental study in rabbits.

This work consists of a series of experiments which were made in order: a) to examine the possible alterations of blood flow to the reduced femoral heads of rabbits, after inducing a closed dislocation of their hips and b) to determine the influence of the early or late reduction of the dislocated femoral heads on their blood flow. The estimations of blood flow to the normal and reduced femoral heads were made using radioactive microspheres. The findings are as follows: a) The blood flow of the femoral heads of the reduced hips was never interrupted completely.

Double or multiple level fractures of the spine.

Over a period of 5 years, 231 patients with nonpathological fractures of the spine were admitted to the Orthopaedic Department of Athens University. Eighteen (7.79 per cent) were found to have double or multiple level fractures of the spine which means that these injuries are not so uncommon.

Bone lesions in pigmented villonodular synovitis.

Seven cases of pigmented villonodular synovitis with invasion of the bone are described, four affecting the hip and the remaining three involving the knee, shoulder and ankle joint, respectively. The pathogenesis of the bone changes and the radiographical appearance of the involved joints are described. The methods of treatment are discussed.

Avulsion of the triceps tendon.

Two cases of the rare injury of avulsion of the triceps tendon are presented. The difficulties in clinical diagnosis and proper evaluation of the roentgenographic findings whenever present are discussed and the treatment is outlined.