No abstract available.
Lumbar Vertebrae*

Intradural disc herniation is a very rare condition, and multiple intradural disc herniations have not been reported to date. The latter may be confused with intradural extramedullary (IDEM) spinal tumors. Here, we report a case of multiple intradural disc herniations masquerading as multiple IDEM tumors and review the relevant literature. We retrospectively reviewed the patient's medical chart, reviewed the intraoperative microscopic findings, and reviewed of PubMed articles on intradural disc herniation. The masses considered to be IDEM tumors were confirmed to be multiple intradural disc herniations. A nonenhancing mass was found to have migrated along the intra-arachnoid space. Two enhancing masses could not migrate because of adhesion and showed peripheral neovascularization. We report an extremely rare case of multiple intradural lumbar disc herniations showing diverse enhancing patterns and masquerading as multiple IDEM tumors. In case of multiple enhancing IDEM masses suspected preoperatively, surgeons should consider the possibility of intradural disc herniation.
Lumbar Vertebrae ; Retrospective Studies

291 healthy youths with ages of 17-30, without internal disease and osteoarthropathy and congenital osteoarthological defects were monitored the age, gender, height, weight of vertebrae in the lumbar and lumbosacral region. The results showed that the rate of vertebral double spine was significant higher than this of other defects. The wide of vertebrae was increasingly from L1 to L5 (average of 4.5+/-0.5cm). The height of vertebrae was 3.1+/-0.3cm. The average thickness of intervertebral disks was 1.3+/-0.3cm. The average concavity index was 2.2+/-0.3mm. Flat-flat angle in the lumbosacral spine was 17.1+/-3.9o. The open angle in the lumbar spine was 31+/-7.4o
Lumbar Vertebrae ; radiography ; diagnosis

Research on 94 patients from 20 to 50 years old with lumbar vertebro disk hernia of moderate and severe grade (stage 3B, 3C-4) with the male incidence is higher than femal. Among of them, 64% at L4-L5 inter-verteba interstice, 38% at the lower back, 12% in the centre, 23% at multistage. The patients were treated by drafts: the first was massage, adjust- stretch pull vertebro, reduce pain, injection Hydrococtizon to external dura mater, the second was injection hydrococtiron +lidicain) into disk hernia combine with the first draft, the third was making tear at both sides of disk hernia combine the second draft. Result: 3b period had good result in the first draft (61%), the second draft (62%), the third draft (68,5%). 3c-4 had good and moderately good result in the first draft (25%), the second draft (41%), the third draft (58%). Following result after 3 to 6 months or 1 year was good
Hernia ; Lumbar Vertebrae ; Diseases

200 patients aged 18-67 including 109 males, 91 females were diagnosed definitely as lumbar disk prolapsas by saccoradiculography and treated surgically in the Hospital N0103 from Nov 1999 to Nov 2003. Saccoradiculography give accurate results, without complication and consistent with post operative diagnosis. The tecnique can be used at provincial level, in lacking of MRI
Hernia ; Intervertebral Disk ; Lumbar Vertebrae

A study on the signs of MRI the lumbar spinal disc degeneration was performed in the imaging diagnosis department of Cho Ray hospital on 100 patients. The results showed that the disease frequently occurred in men, with ages of 40 -60. The position of herniation was usually in the next of the left central line. The herniation occurred in the disc layers of L4-L5 (45%), L5-S1 (27%), L3-L4 (11%), L2-L3 (4%) and L1-L2 (3%). The MRI myelography can distribute to traditional myelography. The conclusion: MRI helped early diagnosis, classification and determination of the precise position to have proper indication, especially in the disc operation by laser for removal of the mucosal nuclear
Lumbar Vertebrae ; Magnetic Resonance Imaging

The comparison of the contrast medium X-ray of radical capsular with the results of operation of the lumbar spinal disc herniation showed that the diagnosis of the spinal disc herniation by the contrast medium X-ray was suitable with the results of the operation of the lumbar - spinal disc herniation in which the lumbar spinal disc herniation in the vertical of L4, L5, L5S1 and double herniation were 70.7%, 13.3% and 8.8%, respectively. The unsuitable rate of diagnosis between them was 5.7%. There were 11 cases that were the false negative due to press of extradural vein and the flaval ligament inflammatory. The X-ray technique should be implement in 3 positions: vertical, side and inclined 3/4 to prevent the missing of lesion
Lumbar Vertebrae ; radiography ; surgery ; therapeutics

OBJECTIVE: Few studies have reported direct comparative data of lumbar spine angles between direct lateral interbody fusion (DLIF) and oblique lateral interbody fusion (OLIF). The purpose of this study was to investigate the clinical and radiological outcomes of DLIF and OLIF, and determine influential factors.METHODS: The same surgeon performed DLIF from May 2011 to August 2014 (n=201) and OLIF from September 2014 to September 2016 (n=142). Radiological parameters, cage height, cage angle (CA), cage width (CW), and cage location were assessed. We checked the cage location as the distance (mm) from the anterior margin of the disc space to the anterior metallic indicator of the cage in lateral images.RESULTS: There were significant differences in intervertebral foramen height (FH; 22.0±2.4 vs. 21.0±2.1 mm, p<0.001) and sagittal disc angle (SDA; 8.7±3.3 vs. 11.3±3.2˚, p<0.001) between the DLIF and OLIF groups at 7 days postoperatively. CA (9.6±3.0 vs. 8.1±2.9˚, p<0.001) and CW (21.2±1.6 vs. 19.2±1.9 mm, p<0.001) were significantly larger in the OLIF group compared to the DLIF group. The cage location of the OLIF group was significantly more anterior than the DLIF group (6.7±3.0 vs. 9.1±3.6 mm, p<0.001). Cage subsidence at 1 year postoperatively was significantly worse in the DLIF group compared to the OLIF group (1.0±1.5 vs. 0.4±1.1 mm, p=0.001). Cage location was significantly correlated with postoperative FH (β=0.273, p<0.001) and postoperative SDA (β=-0.358, p<0.001). CA was significantly correlated with postoperative FH (β=-0.139, p=0.044) and postoperative SDA (β=0.236, p=0.001). Cage location (β=0.293, p<0.001) and CW (β=-0.225, p<0.001) were significantly correlated with cage subsidence.CONCLUSION: The cage location, CA, and CW seem to be important factors which result in the different-radiological outcomes between DLIF and OLIF.
Lumbar Vertebrae ; Spinal Fusion ; Spine

Total 7,446 pedicle measurements were made from T1 to L6. Direct dimensional measurements were obtained from dried adult human spinal columns. Parsmeters considered were the pedicle isthmus diameter in the coronal and sagittal planes, pedicle angles in the transverse and sagittal planes, and the depth to the anterior cortex in a line parallel to the midline of the vertetral body and along the pedicle axis. The results were as follows. 1. The widest pedicle transverse diameters were seen at L6, the narrowest at T4. 2. The widest pedicle superoinferior diameters were seen at T12, the narrowes at T1. 3. In the transverse plane, the posterolateral to anteromedial pedicle axis orientations were seen at all levels except at T12 and T12. 4. In the sagittal plane, the pedicles angled caudally at L5 and cephaladly from L3 to T1. 5. In the thoracolumbar junction, the percentage less than 6mm in the transverse diameters of pedicles is most high at L1(27%) and followed by at the level L2, T11 and T12. 6. The use of 6mm transpedicular screws can be expected to violate the cortex of the pedicles in a significant number in the upper lumbar spine. 7. The 5mm transpedicular screws can be used safely below the T11 level. 8. It is advisable to use roentgen image intensifier during insertion of the transpedicular screws.
Adult ; Humans ; Lumbar Vertebrae ; Spine

OBJECTIVE: This study was undertaken to study pedicle morphology in Koreans to provide a reference guide in transpedicular screw fixation. METHODS: Pedicle measurements were obtained from 35 dried human lumbar columns(175 lumbar vertebrae). Anatomic evaluation was focused on pedicle transverse diameter, pedicle axis length and the distance from the pedicle axis point to the midline of the transverse process. Pedicle angle and vertebral body length also were measured. RESULT: In the transverse plan, pedicle diameter increased from L1(7.8mm) to L5(15.5mm). But in 20.0% of L1 and L2, its diameters was under 6.0mm. In the sagittal plan, it was not as constant and had similar diameter from L1 to L5. In the transverse plan, the pedicle angle increased from L1 to L5. But in the sagittal plan it decreased from L1 to L5. Also, the pedicle axis length did not show concordant change, but rather had similar length in lumbar vertebrae. In 15%, its length was under 45mm. CONCLUSION: These results suggest that using above 6mm diameter and 45mm length of screw for L1 and L2 can violate the pedicle and vertebrae. Above L4, the pedicle axis point was superior to the midline of the transverse process, below L4, it was inferior to the midline of the transverse process. This information may prove to be helpful when contemplating the placement of screws to the lumbar pedicles.
Axis, Cervical Vertebra ; Humans ; Lumbar Vertebrae* ; Spine