Abstract:
STUDY DESIGN:Cross-sectional study with repeated measures design. OBJECTIVE:To compare the myosin heavy-chain isoform distribution within and between paraspinal muscles and to test the theory that fiber-type gradients exist as a function of paraspinal muscle depth. SUMMARY OF BACKGROUND DATA:There is still uncertainty regarding the fiber-type distributions within different paraspinal muscles. It has been previously proposed that deep fibers of the multifidus muscle may contain a higher ratio of type I to type II fibers, because, unlike superficial fibers, they primarily stabilize the spine, and may therefore have relatively higher endurance. Using a minimally invasive surgical approach, using tubular retractors that are placed within anatomic intermuscular planes, it was feasible to obtain biopsies from the multifidus, longissimus, iliocostalis, and psoas muscles at specific predefined depths. METHODS:Under an institutional review board-approved protocol, muscle biopsies were obtained from 15 patients who underwent minimally invasive spinal surgery, using the posterior paramedian (Wiltse) approach or the minimally invasive lateral approach. Myosin heavy chain (MyHC) isoform distribution was analyzed using SDS-PAGE (sodium dodecyl sulfate polyacrylamide gel electrophoresis) electrophoresis. Because multiple biopsies were obtained from each patient, MyHC distribution was compared using both within- and between-muscle repeated measures analyses. RESULTS:The fiber-type distribution was similar among the posterior paraspinal muscles and was composed of relatively high percentage of type I (63%), compared to type IIA (19%) and type IIX (18%) fibers. In contrast, the psoas muscle was found to contain a lower percentage of type I fibers (42%) and a higher percentage of type IIA (33%) and IIX fibers (26%; P<0.05). No significant difference was found for fiber-type distribution among 3 different depths of themultifidus and psoas muscles. CONCLUSION:Fiber-type distribution between the posterior paraspinal muscles is consistent and is composed of relatively high percentage of type I fibers, consistent with a postural function. The psoas muscle, on the other hand, is composed of a higher percentage of type II fibers such as in the appendicular muscles. Our data do not support the idea of a fiber-type gradient as a function of depth for any muscle studied.
journal_name
Spine (Phila Pa 1976)journal_title
Spineauthors
Regev GJ,Kim CW,Thacker BE,Tomiya A,Garfin SR,Ward SR,Lieber RLdoi
10.1097/BRS.0b013e3181bfcd98subject
Has Abstractpub_date
2010-06-01 00:00:00pages
1265-70issue
13eissn
0362-2436issn
1528-1159journal_volume
35pub_type
杂志文章相关文献
SPINE文献大全abstract:STUDY DESIGN:Retrospective analysis of prospective data. OBJECTIVE:To assess the relationship between MRI signal intensity changes, clinical presentation, and surgical outcome in degenerative cervical myelopathy (DCM). SUMMARY OF BACKGROUND DATA:Several studies have sought to assess the extent of spinal cord dysfunct...
journal_title:Spine
pub_type: 杂志文章,多中心研究
doi:10.1097/BRS.0000000000002234
更新日期:2017-12-15 00:00:00
abstract:STUDY DESIGN:Human lumbar intervertebral discs from individuals of varying ages were obtained at autopsy and analyzed for collagen crosslinks. OBJECTIVES:To analyze alterations in collagen crosslinks in human lumbar intervertebral discs with aging and disc degeneration. Crosslinks studied were pyridinoline, which is a...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199808010-00005
更新日期:1998-08-01 00:00:00
abstract::The authors carried out successful total sacrectomy in three cases, two with giant cell tumors and one with a chordoma. The anterior and posterior approach is feasible for resecting huge sacral tumors en bloc, but it is important to reconstruct the continuity between the pelvic ring and spinal column using spinal inst...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199011010-00024
更新日期:1990-11-01 00:00:00
abstract:STUDY DESIGN:Systematic review. OBJECTIVE:To perform a systematic review, evaluating the best available evidence regarding the treatment of lumbar adjacent segment pathology (ASP) to facilitate clinical recommendations for treatment. SUMMARY OF BACKGROUND DATA:It is unclear how nonoperative treatment of lumbar clinic...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e31826d613d
更新日期:2012-10-15 00:00:00
abstract:STUDY DESIGN:Evaluation of a possible correlation of clinical symptoms of chronic low back pain (LBP) patients before and after application of external spinal fixation (ESF) with three-dimensional motion patterns. OBJECTIVE:To determine whether the intervertebral kinematics in chronic LBP patients correlate with pain ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-200212010-00013
更新日期:2002-12-01 00:00:00
abstract:STUDY DESIGN:Retrospective clinical study of a prospective database. OBJECTIVE:This study aims to determine whether revision spinal fusion surgery is worthwhile in patients older than 75 from a risk-benefit perspective. SUMMARY OF BACKGROUND DATA:The benefits of spinal fusion in patients older than 65 is well documen...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000000067
更新日期:2014-01-01 00:00:00
abstract:STUDY DESIGN:A controlled rabbit model of lumbar posterolateral intertransverse process arthrodesis was used to evaluate a bone graft substitute. OBJECTIVE:To determine the efficacy of demineralized bone matrix gel as an autograft extender, using different ratios of demineralized bone matrix to autograft and to determ...
journal_title:Spine
pub_type: 杂志文章,评审
doi:10.1097/00007632-199801150-00003
更新日期:1998-01-15 00:00:00
abstract::An anatomic study of lumbar nerve root lesions in the foraminal zone was performed on 35 cadavers. Two morphologic abnormalities of the nerve roots in the intervertebral foramen were found. The first was an abnormal transverse course of the nerve roots. The second was an indentation on the dorsal root ganglia caused b...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199311000-00017
更新日期:1993-11-01 00:00:00
abstract:STUDY DESIGN:A case report of a rare symptomatic, idiopathic, noncommunicating intradural arachnoid cyst (IAC) of the proximal part of the S1 nerve root (NR). OBJECTIVE:To discuss the possible pathophysiology, clinical and magnetic resonance imaging (MRI) presentation, intraoperative findings, and follow-up of IAC of ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e3181fd679a
更新日期:2011-06-15 00:00:00
abstract:STUDY DESIGN:A report of a case of lumbar spine duplication with the clinical appearance of adolescent scoliosis. OBJECTIVE:To increase knowledge about the pathogenesis and treatment of lumbar spinal duplication. SUMMARY OF BACKGROUND DATA:Although there have been other reports of lumbar spine duplication of this mag...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199802150-00021
更新日期:1998-02-15 00:00:00
abstract:STUDY DESIGN:Effectiveness of a pre-employment worker fitness evaluation in a sample of grocery warehouse order selectors was studied retrospectively. Implementation of the program began in March 1990 and as of September 10, 1993, 1100 prospective employees have been tested. OBJECTIVES:Identification of prospective em...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199409150-00001
更新日期:1994-09-15 00:00:00
abstract:STUDY DESIGN:A biomechanical calf cadaver study. OBJECTIVE:The purpose of this study was to determine the intradiscal pressure gradient of bridged healthy intervertebral segments in correlation with intraoperative distraction force. SUMMARY OF BACKGROUND DATA:Bisegmental dorsal stabilization and anatomic reduction is...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000000213
更新日期:2014-04-01 00:00:00
abstract:STUDY DESIGN:Biomechanical spine model. Comparison of stress in the implant and the adjacent cranial segment was done with conventional rigid versus dynamic stabilization system (DS) fixation. OBJECTIVE:The aim of this study was to study stress at the proximal end of spinal fixation with a novel DS. SUMMARY OF BACKGR...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000003862
更新日期:2020-12-08 00:00:00
abstract:STUDY DESIGN:A randomized clinical trial. OBJECTIVES:To assess the efficacy of motorized continuous traction for low back pain. SUMMARY OF BACKGROUND DATA:The available studies on the efficacy of lumbar traction do not allow clear conclusions because of severe methodologic flaws. The current trial aimed to overcome t...
journal_title:Spine
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1097/00007632-199712010-00011
更新日期:1997-12-01 00:00:00
abstract::Electromyographic studies have determined that muscle imbalance and asymmetry of stretch receptors in the paraspinal muscle of patients with idiopathic scoliosis may have a large role to play in the development and production of the deformity. This project consisted of a detailed histologic and histochemical analysis ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-198805000-00004
更新日期:1988-05-01 00:00:00
abstract:STUDY DESIGN:This study analyzed the relationship of disc degeneration to atherosclerotic changes in the abdominal aorta and stenosis of the ostia of the lumbar and middle sacral arteries, 86 plain radiographs of lumbosacral spines, and the corresponding abdominal aortas were evaluated in connection with routine autops...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199404150-00010
更新日期:1994-04-15 00:00:00
abstract:STUDY DESIGN:Literature review of basic scientific and clinical research in spinal cord injury (SCI). OBJECTIVE:To provide physicians with an overview of the neurobiologic challenges of SCI, the current status of investigation for novel therapies that have been translated to human clinical trials, and the preclinical,...
journal_title:Spine
pub_type: 杂志文章,评审
doi:10.1097/BRS.0b013e3181f3286d
更新日期:2010-10-01 00:00:00
abstract:STUDY DESIGN:A prospective follow-up study to detect the early neurological improvement after decompression surgery and to clarify its correlation with the late neurological outcome in patients with cervical compression myelopathy. OBJECTIVE:To reveal the suitability of a simple performance, 15-second grip-and-release...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e31824ac3d4
更新日期:2012-07-01 00:00:00
abstract:STUDY DESIGN:A new magnetic resonance image analysis method is proposed which is based on the definition of the borders of the vertebral bodies adjacent to the intervertebral disc and their varying relationships. The reproducibility of this method (the so-called "centroid" method) was assessed by consecutive measuremen...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199603010-00006
更新日期:1996-03-01 00:00:00
abstract:STUDY DESIGN:Randomized, controlled trial. OBJECTIVE:To evaluate a four-session self-management group intervention for patients with pain in primary care, led by trained lay persons with back pain. The intervention was designed to reduce patient worries, encourage self-care, and reduce activity limitations. BACKGROUN...
journal_title:Spine
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1097/00007632-199812010-00016
更新日期:1998-12-01 00:00:00
abstract::The purpose of the present study of experimental spinal metastasis, developed in rats by inoculation of tumor cells through the spinous process, was to find the factor that causes the initial damage to the cord in this disorder. In the early stage of paralysis, the degenerated posterior funiculus originated from a sma...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-198912000-00007
更新日期:1989-12-01 00:00:00
abstract::Prior irradiation and scarring can complicate wound closure following spinal surgery. Implanted tissue expanders were used six times in four patients to aid skin closure. Three patients had prior irradiation for cancer, and one had myelomeningocele. The average interval between placement and removal of the expanders w...
journal_title:Spine
pub_type: 杂志文章
doi:
更新日期:1991-08-01 00:00:00
abstract:STUDY DESIGN:Systematic review. OBJECTIVE:The authors aim to review comparative outcome measures between robotic and free-hand spine surgical procedures including: accuracy of spinal instrumentation, radiation exposure, operative time, hospital stay, and complication rates. SUMMARY OF BACKGROUND DATA:Misplacement of ...
journal_title:Spine
pub_type: 杂志文章,评审
doi:10.1097/BRS.0000000000002695
更新日期:2018-12-01 00:00:00
abstract:STUDY DESIGN:This is a report of two cases. OBJECTIVE:To document the occurrence and association of spondylolysis and Arnold-Chiari malformation Type I. SUMMARY OF BACKGROUND DATA:The association of spinal dysraphism has been reported with Arnold-Chiari Type II, but not with Arnold-Chiari Type I. METHODS:The senior ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199710150-00026
更新日期:1997-10-15 00:00:00
abstract:STUDY DESIGN:Sixty radiographs were measured on two separate occasions by three physicians using four different techniques to evaluate the reliability and reproducibility of the measurement of lumbar lordosis. OBJECTIVE:To evaluate clinical methods of measuring lumbar lordosis, determining intraobserver and interobser...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199607010-00008
更新日期:1996-07-01 00:00:00
abstract::Segmental spinal instability was evaluated with magnetic resonance (MR) imaging, computed tomography (CT), and conventional radiography in 33 patients who had undergone surgical spinal fusion. In 16 of the 19 patients who had a diagnosis of solid fusion, the immobilized vertebral bodies demonstrated areas of high sign...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/00007632-199006000-00028
更新日期:1990-06-01 00:00:00
abstract:STUDY DESIGN:Experimental animal study. OBJECTIVE:To determine whether corticosteroids produce additional benefit to nerve root infiltration (NRI) for experimental lumbar disc herniation. SUMMARY OF BACKGROUND DATA:NRI is used for nonsurgical treatment of radicular symptoms caused by lumbar disc herniation or lumbar ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e3181696132
更新日期:2008-04-01 00:00:00
abstract:STUDY DESIGN:Human cadaveric. OBJECTIVES:Compare the accuracy of electromagnetic field (EMF)-based image-guided lumbar pedicle screw insertion to conventional techniques using anatomic landmarks, and fluoroscopy. BACKGROUND:Image-guided surgical systems that aid in spinal instrumentation seek to minimize radiation ex...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/01.BRS.0000087851.51547.00
更新日期:2003-09-01 00:00:00
abstract:STUDY DESIGN:Clinical and radiologic assessment derived from a prospective multicenter data base of adolescent idiopathic scoliosis (AIS) patients. OBJECTIVE:We investigated if "implant density" or the number of screws correlated with the major curve (thoracic or lumbar) correction at 2 years in patients with AIS. We ...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0b013e3181adb35d
更新日期:2009-09-15 00:00:00
abstract:STUDY DESIGN:A 3-dimensional-2-dimensional (3D-2D) image registration algorithm, "LevelCheck," was used to automatically label vertebrae in intraoperative mobile radiographs obtained during spine surgery. Accuracy, computation time, and potential failure modes were evaluated in a retrospective study of 20 patients. OB...
journal_title:Spine
pub_type: 杂志文章
doi:10.1097/BRS.0000000000000814
更新日期:2015-04-15 00:00:00