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Results for “Cervical Vertebrae”

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At least 19 recordsLinked to original sources
PubMed1981

Acrylic prosthesis of the fifth cervical vertebra in cervical chordoma. Case report and review of the literature.

Description of a two-stage surgical treatment of a case of chordoma of the fifth cervical vertebra mainly affecting the vertebral body. In the first stage the cervical column was immobilized employing a posterior approach and a small portion of the tumour in the right lamina was removed. In the second stage the whole of the body of C5 was removed by an anterior route and replaced with an acrylic prosthesis. The advantages of acrylic resin and the literature on vertebral prostheses are discussed.

Acrylic Resins↗
PubMed1994

[Prediction of recovery from dislocation of the cervical vertebrae (whiplash injury of the cervical vertebrae) with initial assessment of psychosocial variables].

The purpose of the present study was to investigate the predictive relationship between psychosocial factors and the course of recovery in patients with whiplash injury. A non-selected sample of 117 subjects satisfying to a clear definition of the syndrome was assessed early after trauma (mean 7.4 +/- 4.2 days) and again at 3, 6, and 12 months. Initial evaluation included subjective complaints (including timing of symptom onset and initial pain intensity) and a large number of psychosocial factors (e.g., self-ratings of well-being, personal and family history, personality traits, and cognitive functioning). Rate of recovery was assessed at follow-ups. One year after initial trauma patients were divided in two groups (recovered and still symptomatic) and compared with regard to initial findings. Finally, a regression analysis was performed with all baseline variables, employing groups (recovered vs symptomatic) as factor variables. Patients who remained symptomatic at 1 year had significantly higher ratings of initial neck pain and headache, displayed a greater variety of subjective complaints, higher scores on the scale "nervousness" from the personality inventory, worse well-being score and poorer performance with regard to focussed attention. According to the regression analysis the following set of initial variables was in significant relationship with poor recovery at 1 year: higher age, complaint of sleep disturbances at initial investigation, and higher intensity of initial neck pain and headache.

Adult↗
PubMed1989

Dome-like expansive laminoplasty for the second cervical vertebra.

The second cervical vertebra (C2) is in a pivotal position for the alignment and stability of the cervical vertebrae as a whole. Since its spinal canal is wider at the cranial and narrower at the caudal end, a dome-like excision of the inner side of the spinal canal from the caudal toward the cranial end results in the decompression of the lesion, preserving the dorsal part of the C2. The authors performed this C2 dome-like expansive laminoplasty on 33 patients (25 cases of the ossification of the posterior longitudinal ligament, six of developmental spinal canal stenosis, and two of spondylosis) and kept them under follow-up observation, which ranged from 1 to 7 years (mean, 3.5 years). The result was satisfactory in terms of the decompression and stability of the cervical vertebrae: even 5 years after the operation, no osteogenesis was noted in the expanded spinal canal to induce compression again. It thus may be concluded that this method is good enough to replace conventional laminectomy.

Aged↗
PubMed2006

Aneurysmal bone cyst of the second cervical vertebrae causing multilevel upper cervical instability.

OBJECTIVE: Aneurysmal bone cyst (ABC) is a rare expansile osteolytic lesion of bone comprising proliferating vascular tissue lining blood-filled cystic cavities. ABCs occur most frequently in patients under age 20 and are uncommon after 30 years of age. Three to 20% of cases occur in the spine, and upper cervical involvement is rare. Lesions may grow rapidly and attain considerable size. When involving the spine, ABCs may result in instability and neurologic compromise, making prompt diagnosis and treatment imperative. We present a report of a 6-year-old child with an ABC of the second cervical vertebrae causing atlantoaxial and C2-C3 instability, treated successfully with curettage, decompression, and anterior and posterior arthrodesis with posterior instrumentation. METHODS: The patient underwent a staged procedure consisting of posterior instrumentation from occiput to C4 and curettage of the lesion followed by anterior cervical discectomy and fusion of C2-C4. The diagnosis, surgical treatment, and outcome of the case are described and relevant literature reviewed. RESULTS: The patient sustained no lasting neurologic deficits and was disease-free at 3 years of follow-up. CONCLUSIONS: ABC is a rare but potentially devastating cause of upper cervical spine instability. Prompt detection and treatment with curettage, decompression, and fusion can produce a satisfactory result and prevent spinal cord injury.

Atlanto-Axial Joint↗
PubMed2000

Sex variation in the second cervical vertebra.

The second cervical vertebra can be used to estimate sex with 83% accuracy in unidentified human skeletal remains. Reported here are the necessary statistics, based on 8 dimensions taken from 400 second cervical vertebrae, for the computation of customized discriminant functions. Discriminant function equations developed using variables selected in a stepwise procedure are also presented here as an example of the usefulness of this bone in estimating sex.

Adult↗
PubMed1998

Derivation of an equation to estimate marrow content of bovine cervical vertebrae.

Marrow content of bovine cervical vertebrae from Choice- and Select-grade carcasses weighing 294 to 343 kg was determined so that a method to monitor the amount of marrow in meat from advanced meat/bone separation machinery and recovery (AMR) systems could be developed. The marrow determination requires cleaning and then ashing bones. Because a large difference in ash content of bone and bone marrow exists and because cartilage content of cervical vertebrae in Choice and Select beef is relatively constant, it was possible to derive the following equation: Weight of marrow = [weight of cartilage (% ash in cartilage - % ash in bone) + % ash in bone (total weight) - (total ash)]/[(% ash in bone - % ash in marrow)]. Constants for ash in fresh bone, marrow, and cartilage were 58.51, .57, and 2.14% with SD of 2.23, .15, and .30%, respectively. A cartilage content of 9.5% along with cervical vertebrae weight and total ash weight were also used to calculate 33.9% marrow in cervical vertebrae. Means for marrow pressed or centrifuged from bovine cervical vertebrae were lower than those obtained from the equation. Therefore, pressing and centrifuging left some marrow in spongy bone. Our ashing method for determining the amount of marrow in whole cervical vertebrae should be useful for determining marrow remaining in cervical vertebrae of bone cakes from AMR systems. Percentage ash in pressed bones is higher and the calculated marrow content is lower when pressed bones are compared to cervical vertebrae that are not pressed. The amount of marrow in whole cervical vertebrae minus the amount left in cervical vertebrae from bone cakes equals the amount in meat from AMR systems.

Analysis of Variance↗
PubMed1995

Position of the cervical vertebrae during helmet removal and cervical collar application in football and hockey.

There is lack of consensus among prehospital personnel (athletic therapists, paramedics, sport physiotherapists) concerning specific aspects of initial care and assessment of injured athletes presenting signs and symptoms of a cervical spine injury (CSI). In instances of serious injury involving the head and/or spine, complicated by altered levels of consciousness, protective equipment such as helmets and shoulder pads may provide a hinderance to prompt, safe and efficient management. Specifically, there is disagreement concerning the need or advisability of removing protective head gear, as in the case of football and hockey athletes. Using the technique of fluoroscopy, the cervical spine displacement of 21 male football and hockey athletes was determined while wearing protective shoulder pads and protective head equipment at the following times (a) during helmet removal, (b) during cervical collar application, and (c) as the helmetless head was allowed to rest. Subsequent frame-by-frame video arthokinematic analysis, using computer-assisted digitization, showed significant alterations in the position of adjacent cervical vertebrae during helmet removal, cervical collar application, and head rest. Results suggest that stabilization and transportation of football and hockey athletes with suspected CSI in their respective protective equipment is recommended in order to reduce the risk of further trauma by unnecessary cervical spine motion.

Adolescent↗