Biomedical subjects

Vasilios D Polyzois

Publications and source records attributed to Vasilios D Polyzois.

9 recordsLinked to original sources

PubMed2006

Midfoot fractures.

Fractures of the midfoot are uncommon because of the constrained configuration of multiple articular surfaces, which is augmented by capsular attachments and strong ligaments and tendons. Injury patterns usually involve more than one structure, although isolated fractures, dislocations, and sprains can occur. The key to optimal treatment of midfoot fractures is a high index of clinical suspicion because of their rareness. The traumatic midfoot injuries described in this article are categorized as Chopart joint injuries, tarsal scaphoid fractures, cuboid fractures, cuneiform fractures, and Lisfranc joint injuries.

Foot Joints↗

PubMed2006

The management of lower extremity soft tissue and tendon trauma.

This article discusses the treatment of soft tissue injuries in the ankle and foot, including rupture of the Achilles tendon, Achilles tendonitis, peroneal tendonitis, peroneal tendon syndromes, and ankle sprain. It also discusses the causes, treatment, and reconstruction of soft tissue defects in the foot.

Achilles Tendon↗

PubMed2006

Current concepts in delayed bone union and non-union.

Healing of a fracture is a continuous process that involves various types of histologic regeneration at different sites. This article describes current approaches to managing delayed union and non-union of fracture.

External Fixators↗

PubMed2006

Current concepts and techniques in posttraumatic arthritis.

Posttraumatic arthrosis is a commonly encountered clinical problem, but the pathoetiology of its development is not yet clarified. Many contributing mechanical biologic factors interplay with the traumatic event that necessarily precedes the posttraumatic syndrome. New biologic concepts involving the ability of the cartilage to repair and how such healing can be promoted are being realized in new modalities of treatment. The traumatic event as such and the resulting pathomechanical consequences require new ways of evaluation.

Ankle Injuries↗

PubMed2006

Pediatric fractures of the foot and ankle.

Distal tibial physeal injuries are common in children, accounting for 10% to 40% of all injuries to skeletally immature patients. This article describes the classification, treatment, and complications of distal tibial fractures, fractures of the talus and calcaneus, midfoot and tarsometatarsal injuries, metatarsal fractures, and fractures of the phalanges in children.

Calcaneus↗

PubMed2006

The use of Ilizarov technique and other types of external fixation for the treatment of intra-articular calcaneal fractures.

Treatment of severely comminuted calcaneal fractures with soft tissue compromise is still a controversial issue among surgeons. Complications of open reduction internal fixation have been well reported in the literature with a fairly high incidence of posttraumatic osteoarthritis of the subtalar joint, symptomatic hindfoot stiffness (especially when fixed in varus), wound dehiscence, and potential for the development of osteomyelitis caused by the extensive soft tissue trauma inherent with these injuries. For these reasons, closed treatment techniques using minimally invasive reduction procedures with application of ring-type fine-wire external fixation have recently gained popularity.

Calcaneus↗

PubMed2006

Lisfranc fracture-dislocations: current treatment and new surgical approaches.

Anatomic reduction and restoration of the acute or chronic fracture-dislocation of the tarso-metatarsal joint is essential and needs to be addressed early in the patient's treatment with internal or external fixation. Long-term results following this injury can be associated with chronic instability, posttraumatic arthrosis, and poor functional outcomes. In this article, the authors review the current treatments of internal fixation and introduce new surgical techniques for addressing the acute or chronic tarso-metatarsal injuries with the application of circular multiplane external fixation devices.

Arthrodesis↗

PubMed2005

Seventh cervical vertebral body solitary osteochondroma. Report of a case and review of the literature.

Solitary osteochondroma of the cervical spine is a rare manifestation of a common bony tumour. It can create symptoms, depending on the adjacent compressed structures. In this report, a patient suffering solitary osteochondroma on the anterolateral aspect of the C7 vertebral body is presented and the literature is reviewed. A 46-year-old female presented with dysphagia and pain at the anterolateral surface of her neck during cervical movements or application of local pressure. The clinical and imaging assessment ascertained that the above complaints were due to a local tumour in the neck firmly attached to the spine at the anterolateral aspect of the C7 and which resembled an osteochondroma. Surgical treatment was chosen due to the persistence of the symptoms. The lump was resected using an anterolateral cervical approach and it was sent to the pathology department for confirmation of the lesion's histological character. The patient was completely relieved of her symptoms. Resection of the osteochondroma seems to be the only reliable solution for definitive relief from the clinical complaints. This surgical treatment, as it is reported, has no major complications and gives good functional results. One to four per cent of the osteochondromas are located at the spine. At the cervical spine, they can cause neurological symptoms and more rarely, dysphagia. Reviewing the literature, no case of solitary osteochondroma located in the anterior aspect of the C7 body was found. Two cases suffering from dysphagia were reported due to external compression by anterior hyperostosis of the cervical spine, but not due to osteochondroma.

Cervical Vertebrae↗

PubMedDate not supplied

Trunk asymmetry and handedness in 8245 school children.

The aim of this report is the appraisal of a possible correlation of trunk asymmetry assessed with a scoliometer and lateralization of the brain as expressed by handedness in a school aged population. Many (8245) students (4173 girls and 4072 boys), 6-18 years of age were examined. A checklist was completed for each student including handedness and trunk asymmetry. The standing forward bending test was performed using the Pruijs scoliometer and the examined children were divided into three groups for each of the three examined regions (mid-thoracic, thoracolumbar and lumbar) according to the recorded asymmetry (no asymmetry, 2-7 degrees and > or =7 degrees ). Ninety-one per cent of children were right-handed, while 9% were left-handed. A significant statistical correlation of trunk asymmetry and handedness was found both in boys and girls in the group of asymmetry 2-7 degrees at mid-thoracic (p < 0.038) but not at thoracolumbar and at lumbar region. These findings show that there is significant correlation of mild mid-thoracic asymmetry and the dominant brain hemisphere in terms of handedness, in children who are entitled at risk of developing scoliosis. These findings are implicating the possible aetiopathogenic role of cerebral cortex function in the determination of the thoracic surface morphology of the trunk.

Adolescent↗