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At least 757 records · Page 42Linked to original sources
PubMed1981

Prevertebral hematoma in cervical spine injury: incidence and etiologic significance.

In a consecutive series of 30 hospitalized cervical injury patients, 18 proved to have widening of the prevertebral soft tissue space due to hematoma. The upper limit of normal width in 50 noninjury patients was used as a reference. Hematoma almost exclusively manifested at C1-C4 and proved to be closely related to fractures of anterior elements of the spine. Relatively small hematomas were encountered in odontoid fractures and compression fractures of vertebral bodies; relatively large hematoma in disruptive hyperextension injury. Large hematomas are explained by extensive anterior ligamentous damage with rupture of larger blood vessels. As a rule, most hematomas disappeared within 2 weeks after the injury.

Adolescent↗
PubMed1983

Pseudospread of the atlas: false sign of Jefferson fracture in young children.

Jefferson fractures are rare prior to teen-age. Three young children examined after trauma exhibited the characteristic spread appearance of the atlas, but fractures were excluded radiographically and clinically. A retrospective study demonstrated a similar appearance, termed "pseudospread," in most children aged 3 months to 4 years, including over 90% during the second year. Pseudospread results from a discrepancy between the "neural" growth pattern of the atlas and the "somatic" pattern of the axis. An "atlas spread index" is defined and a normal range presented. When an atlas fracture is suggested by apparent lateral spread of the lateral atlas masses, computed tomography is useful to demonstrate an intact atlas ring.

Axis, Cervical Vertebra↗
PubMed2000

Cervical radiography for trauma patients: a time-effective technique?

OBJECTIVE: The purpose of this study was to determine the time necessary to perform a six-view radiographic examination of the cervical vertebral column of trauma victims. In addition we compared the added examination times for 30 patients who underwent an additional helical CT examination of the cervical region immediately after cranial CT. CONCLUSION: Cervical radiography is a time-consuming procedure, which is a concern for trauma surgeons. A more efficient way for cervical evaluation of trauma patients needs to be adopted. Evidence now exists in the literature to suggest that helical CT can serve that purpose.

Accidents, Traffic↗
PubMed1995

Craniocervical junction as a focus for craniofacial growth studies.

The craniocervical junction is a highly specialized unit simultaneously supporting head during movements in all planes and protecting the spinal cord. Anatomically, it includes an atlantoaxial complex, part of which embryonically arises from the occipital region of the skull. This review deals with the gross anatomy, kinematics, and growth reactions associated with functional alteration in this complex. Particular attention is paid to the atlas, the connecting element between the head and the vertebral column proper. From several studies it is concluded that the horizontal growth of the atlas is regulated by synchondroseal growth, whereas the vertical growth is determined by appositional growth. Some vertebral anomalies and concomitant anomalies of the cranial base are reported, to point out the ontogenetic integration between the skull base and the craniocervical junction. The high frequencies of atlantal posterior arch deficiency in cleft palate patients have led to speculations about common etiologic factors in these conditions.

Atlanto-Axial Joint↗
PubMed1978

Posterior atlanto-axial subluxation in rheumatoid arthritis.

A case of posterior atlanto-axial subluxation is presented, together with a survey of previously reported cases. The patient's history suggested affection of the vertebral artery, and involvement of the medulla, but there were no physical signs of such. The patient was treated with posterior atlanto-axial fixation with good results.

Arthritis, Rheumatoid↗
PubMed1976

Atlanto-axial fusion in rheumatoid arthritis. A new method of fixation with wire and bone cement.

Twenty-eight occipito-cervical fusions performed over the past 4 years in patients with rheumatoid arthritis are discussed. All of the patients with one exception had signs of neurological involvement preoperatively due to pressure on occipital nerve roots, spinal cord and/or vertebral arteries. A surgical technique using wire, pin and bone cement and permitting early mobilization without external fixation was used and is described in detail. The clinical results were excellent in 21 cases with an additional five patients showing improvement. One patient did not benefit from surgery and one had no symptoms preoperatively. The results are encouraging and the possibility of early mobilization (the day after surgery) is of the utmost importance for this group of patients.

Adult↗
PubMed1999

OP-1 for cervical spine fusion: bridging bone in only 1 of 4 rheumatoid patients but prednisolone did not inhibit bone induction in rats.

We used OP-1 (also called BMP-7) on a collagen type-1 carrier in atlanto-axial posterior fusions to promote bony healing after wire fixation. 4 patients who had instability between the atlas and axis due to rheumatoid disease received the implants. The patients were examined with conventional radiography postoperatively at 2, 6 and 10 months. In 3 patients, no new bone formation was detectable. In 1 patient, new bone bridged the fusion site at 6 months. 3 patients were on chronic steroid treatment, including the patient in whom bone formation was detected. To determine whether steroid treatment could be responsible for the low rate of bone induction, 24 rats each received OP-1 implants in an abdominal muscle pouch. They were divided into 3 groups receiving saline, 0.1 or 1.0 mg/kg BW of prednisolone daily until they were killed 3 weeks postoperatively. Specimens were decalcified for histology and the amount of calcium in the decalcifying solution was measured. All groups showed ossicles induced by OP-1, and no effect of prednisolone was detected. Thus the failures in the patients may have causes other than prednisolone treatment.

Animals↗