No abstract available.

Spinal Stereotactic Radiosurgery (SRS) has become an important treatment modality for a broad range of spinal tumors and spinal vascular lesions. Recent clinical acceptance and awareness of the usefulness of spinal radiosurgery has escalated with the development of modern radiosurgical technology. Image-guided navigation systems incorporating non-invasive fiducial tracking and virtual simulation planning systems have made spinal radiosurgery increasingly effective and expanded the range of clinical applications for which it can be effectively used. Additional improvements such as Intensity Modulation and Micro-Multileaf Collimation that allow the accurate modulating and shaping of the radiation beam have also contributed greatly to the ability of clinicians to treat irregular and critically located lesions with greatly reduced collateral risk. Spinal Radiosurgery for spinal tumors can achieve similar clinical results to cranial stereotactic radiosurgery for brain tumors in terms of achieving local tumor control and improving quality of life and survival rates. Stereotactic radiosurgery, which has long been used for the treatment of intracranial lesions, is now recognized to be a viable option for treating spinal tumors and spinal vascular lesions.
Brain Neoplasms ; Quality of Life ; Radiosurgery ; Survival Rate ; Track and Field

OBJECTIVE: This 2009–2011 nation-wide study of adult Koreans was aimed to provide characteristics, medical utilization states, and survival rates for newly diagnosed patients with primary nonmalignant and malignant spine tumors. METHODS: Data for patients with primary spine tumors were selected from the Korean Health Insurance Review and Assessment Service database. The data included their age, sex, health insurance type, co-morbidities, medical cost, and hospital stay duration. Hospital stay duration and medical costs per person occurring in one calendar year were used. In addition, survival rates of patients with primary malignant spine tumors were evaluated. RESULTS: The incidence rate of a primary spine tumor increased with age, and the year of diagnosis (p≤0.0001). Average annual medical costs ranged from 1627 USD (pelvis & sacrum & coccyx tumors) to 6601 USD (spinal cord tumor) for primary nonmalignant spine tumor and from 12137 USD (spinal meningomas) to 20825 USD (pelvis & sacrum & coccyx tumors) for a primary malignant spine tumor. Overall survival rates for those with a primary malignant spine tumor were 87.0%, 75.3%, and 70.6% at 3, 12, and 24 months, respectively. The Cox regression model results showed that male sex, medicare insurance were significantly positive factors affecting survival after a diagnosis of primary malignant spine tumor. CONCLUSION: Our study provides a detailed view of the characteristics, medical utilization states, and survival rates of patients newly diagnosed with primary spine tumors in Korea.
Adult* ; Coccyx ; Diagnosis ; Epidemiologic Studies* ; Epidemiology ; Humans ; Incidence ; Insurance ; Insurance, Health ; Korea ; Length of Stay ; Male ; Medicare ; Sacrum ; Spine* ; Survival Rate

OBJECTIVE: The aim of this multicenter, matched-pair study was to compare the outcomes of stereotactic radiosurgery (SRS) and conventional external radiation therapy (RT) when used as a primary treatment in spine metastasis from hepatocellular carcinoma (HCC). METHODS: From 2005 to 2012, 28 patients underwent SRS as the primary treatment in spine metastasis from HCC. Based on sex, age, number of spine metastasis, Child-Pugh classification, interval from original tumor to spine metastasis, and year of treatment, 28 patients who underwent RT were paired. Outcomes of interest were pain relief, progression free survival, toxicities, and further treatment. RESULTS: The perioperative visual analog scale (VAS) decrease was larger in SRS group than in RT group, but the difference was not significant (3.7 vs. 2.8, p=0.13). When pain medication was adjusted, the number of patients with complete (n=6 vs.3) or partial (n=12 vs.13) relief was larger in SRS group than in RT group; however, the difference was not significant (p=0.83). There was no significant difference in progression free survival (p=0.48). In SRS group, 32.1% of patients had 1 or more toxicities whereas the percentage in RT group was 63.0%, a significant difference (p=0.04). Six SRS patients and 7 RT patients received further intervention at the treated segment. CONCLUSION: Clinical and radiological outcome were not significantly different between the two treatments. Toxicities, however, were more prevalent in the RT group.
Carcinoma, Hepatocellular* ; Classification ; Disease-Free Survival ; Humans ; Neoplasm Metastasis* ; Radiosurgery* ; Spine* ; Visual Analog Scale

A cadaveric study was performed to investigate the relationship between disc degeneration and morphological changes in the intervertebral foramen of cervical spine, including the effect on the nerve root. Seven fresh frozen human cadavers were dissected from C1 to T1, preserving the ligaments, capsules, intervertebral disc and the neural structures. The specimens were scanned with MRI and then scanned through CT scan in the upright position. Direct mid-sagittal and 45 degree oblique images were obtained to measure the dimension of the intervertebral disc height, foraminal height, width, area and segmental angles. Disc degeneration was inversely correlated with disc height. There was a significant correlation between disc degeneration and foraminal width (p<0.005) and foraminal area (p< 0.05), but not with foraminal height. Disc height was correlated with foraminal width but not with height. The segmental angles were decreased more in advanced degenerated discs. There was a correlation between nerve root compression and decreased foraminal width and area (p<0.005). This information and critical dimensions of the intervertebral foramen for nerve root compression should help in the diagnosis of foraminal stenosis of the cervical spine in patients presenting with cervical spondylosis and radiculopathy.
Adult ; Aged ; Aged, 80 and over ; Cadaver ; Female ; Human ; Intervertebral Disk/*pathology/radiography ; Magnetic Resonance Imaging/*methods ; Male ; Middle Aged ; Spine/*pathology/radiography ; Support, Non-U.S. Gov't ; Tomography, X-Ray Computed/*methods

The clay-shoveler's fracture is an isolated avulsion fracture of the lower cervical or upper thoracic spinous process. Among them, multiple spinous process fractures are very rare. We present 34-year-old male patient who have multiple spinous process fractures with twelve contiguous levels of cervico-thoracic spine (from C4 to T8) after motorcycle accident. This case is multiple isolated spinous process fractures with good clinical outcome.
Adult ; Humans ; Male ; Motorcycles ; Spine*

PURPOSE: The purpose of our study was to compare the clinical results of minimal incision carpal tunnel release with those of endoscopic release. MATERIALS AND METHODS: We analyzed 27 patients (41 cases) who had been treated by minimal incision carpal tunnel release and 20 patients (29 cases) treated by single portal endoscopic carpal tunnel release. The average follow up period was 35.2 months. Results were compared between the two groups by assessing subjective satisfaction, postoperative symptoms, grip and pinch strength, two point discrimination and time to recovery. RESULTS: According to Cseuz's criteria, the results were excellent or good in 38 cases (93%) in minimal incision carpal tunnel release group, and in 27 cases (93%) in the endoscopic carpal tunnel release group. Subjective symptoms, grip power, pinch strength, thenar muscle atrophy, two point discrimination test and recovery time were similar in the two groups. CONCLUSION: We suggest that minimal incision carpal tunnel release and endoscopic carpal tunnel release are equally efficient methods for the treatment of carpal tunnel syndrome.
Carpal Tunnel Syndrome ; Discrimination (Psychology) ; Follow-Up Studies ; Hand Strength ; Humans ; Muscular Atrophy ; Pinch Strength

PURPOSE: To evaluate the neuroprotective effect of combination therapy of polyethylene glycol (PEG) and magnesium sulfate (MgSO4) after a spinal cord injury. MATERIALS AND METHODS: Twenty Sprague Dawley male rats (300-350 gm) had a spinal cord injury after T9/10 laminectomy using an Ohio State University (OSU) impactor under intraperitoneal anesthesia. The animals were randomized to receive either PEG (1 g/kg)+MgSO4 (300 mg/kg) or saline (2 ml) via carotid vein after 2 hours of injury and then every 6 hours for 5 times. The behavioral outcome assessments were performed on days 2, 4 and 7, and then every week using the Basso, Bresnahan, and Beattie (BBB) score and subscore. The animals also underwent sensory threshold testing using a von Frey monofilament device and gait analysis with Catwalk program before and 6 weeks after cord injury. The animals were sacrificed at the end of 6 weeks and histologic assessment was performed to measure the areas of white and gray matter. RESULTS: For the animals treated with PEG+MgSO4 and saline, the mean BBB scores at 6 weeks post-injury were 13.3+/-0.3, 11.4+/-0.2 and the BBB subscores were 9.1+/-1.1, 4.4+/-1.2 respectively (p<0.05). No significant differences were found in sensory testing and gait analysis between the two groups. Histologic assessment revealed no significant difference in gray matter sparing but the areas of white matter at the lesion epicenter were 0.68+/-0.2, 0.41+/-0.04 mm2 in the PEG+MgSO4 and saline groups respectively, which indicated significant sparing of white matter in PEG+MgSO4 group (p<0.05). CONCLUSION: The combination therapy of polyethylene glycol and magnesium sulfate improved the motor function and showed significant histological sparing of the spinal cord after an acute spinal cord injury in rats.
Anesthesia ; Animals ; Gait ; Humans ; Laminectomy ; Magnesium ; Magnesium Sulfate ; Male ; Neuroprotective Agents ; Ohio ; Polyethylene ; Polyethylene Glycols ; Rats ; Sensory Thresholds ; Spinal Cord ; Spinal Cord Injuries ; Veins

OBJECTIVE: The aim of this nationwide study was to analyze the current state of patients with newly diagnosed metastatic spine tumors according to surgical methods.METHODS: Data was extracted from the Korean Health Insurance Review and Assessment Service database. Surgery was categorized into three methods : fusion, decompression, and vertebroplasty. Data included patient age, sex, health insurance type, and co-morbidities. Survival rates of metastatic spine tumor patients according to each surgical method were evaluated.RESULTS: Among 1677 patients who had an operation, 823 patients were treated by fusion, 141 patients underwent decompression, and 713 patients were treated by vertebroplasty. The three most prevalent primary tumor sites were the lung, breast, and liver & biliary. On the other hand, the three most prevalent primary tumor sites of patients who underwent surgery were the lung, liver & biliary, and the prostate. The median survival periods for each surgical method in the metastatic spine tumor patients were 228 days for those who underwent surgery, 249 days for decompression, and 154 days for vertebroplasty. Age, sex, and comorbidities significantly affected survival rate.CONCLUSION: For every primary tumor site, decompression was the least common surgical method during the study period. Although the three surgical methods did not significantly affect the survival period, patients with a poor prognosis tended to undergo vertebroplasty.
Breast ; Comorbidity ; Decompression ; Hand ; Humans ; Insurance, Health ; Liver ; Lung ; Methods ; Neoplasm Metastasis ; Prognosis ; Prostate ; Spine ; Survival Rate ; Vertebroplasty

OBJECTIVE: Cervical radicular pain is defined as pain arising in the arm caused by irritation of a cervical spinal nerve or its roots. Although many treatment modalities are described in the literature, the available evidence for efficacy is not sufficient to allow definitive conclusions. The goal of this study was to establish the benefits and prognostic factors of pulsed radiofrequency (PRF) on the adjacent cervical dorsal root ganglia (DRG) of cervical radicular pain patients. METHODS: A retrospective study of PRF treatment of patients with cervical radicular pain was carried out. Two times diagnostic block of cervical DRG were performed before PRF. PRF was applied for 2 minutes at a setting of 2 Hz and 45 V by two times on the same targets, with the end point being an electrode tip temperature 42degrees C. Numerical rating scale (NRS) score was evaluated post-treatment 2 week, 1 month, 3 months and 6 months, which were compared with pretreatment value. A successful outcome was defined that NRS change was improved more than 50% at 6 months. RESULTS: The mean age was 54 years. The success rate was 68%(15/22) after six months of follow-up. PRF induced complications were not observed. Between success and failure group, we do not find any positive outcome prognostic factor. Interestingly, PRF treatment on foraminal stenosis is better outcome than herniated cervical disc. CONCLUSION: PRF on adjacent cervical DRG is effective and safe treatment option for cervical radicular pain patients. However, more long-term follow up and larger patients are needed to establish effectiveness PRF treatment on cervical radicular pain patients.
Arm ; Constriction, Pathologic ; Diagnosis-Related Groups ; Electrodes ; Follow-Up Studies ; Ganglia, Spinal ; Humans ; Pulsed Radiofrequency Treatment* ; Retrospective Studies ; Spinal Nerves