4.Response to Comments on "Correlation between Radiologic Sign of Lumbar Lordosis and Functional Status in Patients with Chronic Mechanical Low Back Pain".
Alireza ASHRAF ; Siamak FARAHANGIZ ; Bita PAKNIAT JAHROMI ; Nazanin SETAYESHPOUR ; Mahshid NASERI ; Ali NASSERI
Asian Spine Journal 2015;9(1):151-152
5.Commentary on Lumbar Lordosis in Chronic Mechanical Back Pain.
Manish Kundanmal KOTHARI ; Pramod SAINI ; Agnivesh TIKOO
Asian Spine Journal 2015;9(1):147-148
No abstract available.
Animals
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Back Pain*
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Lordosis*
6.The Role of the Pelvis in Sagittal Alignment of Lumbar Degenerative Disease Patients.
Yong Chan KIM ; Ki Han YOU ; Chulyoung JANG ; Ji Hao CUI ; Sirichai WILARTRATSAMI ; Tae Hwan KIM ; Jae Keun OH ; Moon Soo PARK ; Seok Woo KIM
Journal of Korean Society of Spine Surgery 2016;23(2):131-138
STUDY DESIGN: Literature review. OBJECTIVES: To present updated information on the relationship of the pelvis and lumbar degenerative disease (LDD) patients and to emphasize the importance of the pelvis in sagittal alignment of LDD patients. SUMMARY OF LITERATURE REVIEW: Although the relationship of the pelvis and sagittal alignment of LDD patients is controversial, many authors have reported a significant impact of the pelvis on LDD sagittal alignment. MATERIALS AND METHODS: The authors identified references through a literature search on the pelvis and LDD and continuous monitoring of the literature during the past 30 years. RESULTS: The pelvis and lumbar levels were related to whole-body sagittal alignment. The pelvis is also closely related to sagittal alignment of LDD patients. Therefore, the entire area should be regarded as a lumbopelvic complex. CONCLUSIONS: We need to consider the concept of a lumbopelvic joint and lumbopelvic lordosis, not a lumbosacral joint and lumbar lordosis. We must also evaluate the lumbopelvic complex to assess whole-body sagittal alignment and dynamic balance.
Animals
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Humans
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Joints
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Lordosis
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Pelvis*
7.Screw Fixation without Fusion for Low Lumbar Burst Fracture : A Severe Canal Compromise But Neurologically Intact Case.
Kun Soo JANG ; Chang Il JU ; Seok Won KIM ; Sung Myung LEE
Journal of Korean Neurosurgical Society 2011;49(2):128-130
The low lumbar spine is deeply located in flexible segments, and has a physiologic lordosis. Therefore, burst fractures of the low lumbar spine are uncommon injuries. The treatment for such injuries may either be conservative or surgical management according to canal compromise and the neurological status. However, there are no general guidelines or consensus for the treatment of low lumbar burst fractures especially in neurologically intact cases with severe canal compromise. We report a patient with a burst fracture of the fourth lumbar vertebra, who was treated surgically but without fusion because of the neurologically intact status in spite of severe canal compromise of more than 85%. It was possible to preserve motion segments by removal of screws at one year later. We also discuss why bone fusion was not necessary with review of the relevant literature.
Animals
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Consensus
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Humans
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Lordosis
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Spine
8.Comparision of Lumbar Lordosis According to Different Operative Positions.
Chang Ho CHOI ; Young Do KOH ; Dong Jun KIM ; Jong Oh KIM
Journal of Korean Society of Spine Surgery 2000;7(1):77-82
STUDY DESIGN: A study was designed to compare lumbar lordosis in different positions. OBJECTIVES: The aim of this study was to document the changes of segmental and total lumbar lordosis in common operative positions of lumbar spine. SUMMARY OF LITERATURE REVIEW: It is very important to maintain physiologic lumbar lordosis in instrumentation of lumbar spine. MATERIALS AND METHODS: Twenty-six asymptomatic volunteers underwent a series of four lateral lumbar radiographs ; standing, prone on chest roll and prone on Wilson spine table with hip flexion of 60 and 20 degree. Lumbar lordosis and segmental lordotic angle were compared and analyzed regarding to positions. Lordosis in stading position was assumed to be physiologic. RESULTS: In chest roll position, physiologic lordosis was preserved, but segmental lordotic angles of L3-L4 and L4-L5 significantly decreased compared with those in standing position. Total lumbar lordosis in the Wilson table with hip flexion of 60 degree and 20 degree was decreased 42% and 22%, respectively. In Wilson table, segmental lordotic angles of L1-L2, L2-L3, L3-L4 and L4-L5 were significantly decreased compared with those in standing position. CONCLUSIONS: Physiologic lordosis was preserved only under chest roll. Segmental lordotic angles of L5-S1 was not influenced by positions.
Animals
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Hip
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Lordosis*
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Spine
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Thorax
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Volunteers
9.Anterior Cervical Instrumentation Using Intradiscal Cage with Integrated Plate.
Kyoung Rok AHN ; Kyeong Sik RYU ; In Bok CHANG ; Byung Moon CHO ; Se Hyuck PARK ; Sae Moon OH
Journal of Korean Neurosurgical Society 2006;39(4):260-264
OBJECTIVE: The retrospective study is undertaken to report clinical results of anterior cervical interbody fusion with an intradiscal cage with an integrated plate (PCB cervical plating system). METHODS: 38 patients underwent anterior cervical interbody fusion with PCB cervical plating system and followed 6~24 months. The authors investigated overall surgical results; clinical outcome, fusion rate, change of interspace height & lordotic angle, and complications. RESULTS: No complication was observed during the operation. Clinical improvement was identified in 34 cases (89.5%). Bone fusion observed in 44 out of 49 sites (90.7%). After operation, the interspace height increased from 5.4+/-1.3 mm to 7.8+/-1.5 mm and maintained 7.4+/-1.1 mm and, interspace angle went up from 4.2+/-0.7 degrees to 4.8+/-1.1 degrees and maintained 4.6+/-0.9 degrees. The loosening of screw was observed in 6 cases, one of which had reoperation because of the expulsion of the device accompanied. CONCLUSION: PCB cervical plating system could restore interbody height and lordosis in anterior cervical interbody fusion. But, if the insertion of the spacer is not precise, the frequencies of hardware failure are relatively high. It is considered necessary for the operator to be careful in the procedure.
Animals
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Humans
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Lordosis
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Reoperation
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Retrospective Studies
10.Radiological Evaluation of the Initial Fixation between Cortical Bone Trajectory and Conventional Pedicle Screw Technique for Lumbar Degenerative Spondylolisthesis.
Koshi NINOMIYA ; Koichi IWATSUKI ; Yu Ichiro OHNISHI ; Toshiki YOSHIMINE
Asian Spine Journal 2016;10(2):251-257
STUDY DESIGN: Retrospective study. PURPOSE: To compare initial fixation using the cortical bone trajectory (CBT) technique versus conventional pedicle screws (PS) in radiographs of postsurgical lumbar degenerative spondylolisthesis. OVERVIEW OF LITERATURE: Few reports have documented the holding strength of CBT technique for spondylolisthesis cases. METHODS: From October 2009 to June 2014, 21 cases of degenerative spondylolisthesis were surgically treated in our institution. Ten were treated with conventional PS technique and 11 of with CBT technique. Mean lumbar lordosis and percent slippage were evaluated preoperatively, immediately after surgery, and 6 months and 1 year postoperatively using radiographs. We also investigated percent loss of slip reduction. RESULTS: There were statistically significant differences between preoperative percent slippage and postoperative slippage in both PS and CBT procedures over 1 year, and both techniques showed good slip reduction. On the other hand, lumbar lordosis did not change significantly in either the PS or CBT groups over 1 year. CONCLUSIONS: CBT technique showed similarly good initial fixation compared with the PS procedure in the treatment of lumbar degenerative spondylolisthesis.
Animals
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Hand
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Lordosis
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Retrospective Studies
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Spondylolisthesis*