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001-es BibID:	BIBFORM034540
Első szerző:	Berlemann, U.
Cím:	The role of lumbar lordosis, vertebral end-plate inclination, disc height, and facet orientation in degenerative spondylolisthesis / Berlemann U., Jeszenszky D. J., Bühler D. W., Harms J.
Dátum:	1999
Megjegyzések:	Degenerative spondylolisthesis (DS) is a common condition of the aging spine, but the underlying pathomechanisms remain controversial. Most previous studies focused on the role of facet-joint alignment and reported a pronounced sagittal orientation. This, however, may also be a secondary feature to the slippage. This study analyzed several radiologic findings in the lower lumbar spine in 23 patients with DS (group A) and 40 age- and sex-matched controls (group B). Facet-joint angulation, intervertebral disc height, lordosis of the lumbar spine (L1-S1), and inclination of the L4, L5, and S1 end plates were assessed from neutral standing lateral radiographs and computed tomography (CT) or magnetic resonance imaging (MRI) investigations. Two findings were found to be significantly different between the groups. Facet joints were aligned more sagittal in group A, and the inclination of the vertebral end plates was more horizontal in group B. There was no statistical difference in lumbar lordosis or L4-5 disc height between the two groups, with disc height being decreased in both groups. In group A, more gliding was associated with a further decrease in disc space, pronounced sagittal alignment of the L4-5 facet joints, and a decrease in lumbar lordosis. We concluded that further studies should focus on the analysis of spinal alignment and lower lumbar end-plate orientation to identify patients at risk for development of DS.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Journal of spinal disorders. - 12 : 1 (1999), p. 68-73. -
További szerzők:	Jeszenszky Dezső (1954-) (idegsebész, ortopédus) Bühler, D. W. Harms, Jürgen
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM034518
Első szerző:	Berlemann, U.
Cím:	Facet joint remodeling in degenerative spondylolisthesis : an investigation of joint orientation and tropism / Berlemann, U., Jeszenszky, D. J., Bühler, D. W., Harms, J.
Dátum:	1998
ISSN:	0940-6719
Megjegyzések:	This study analyzed transverse facet joint angulations at the three lower lumbar levels in 132 patients assigned to one of four groups. Group A comprised 23 patients with degenerative spondylolisthesis (DS) at the level L4-5, group B comprised 40 patients above the age of 50 years, group C comprised 38 patients aged between 35 and 50 years, and group D comprised 31 patients under the age of 35 years. Groups B, C, and D had no evidence of DS. Measurements were taken from hard copies of axial MR or CT images. The transverse plane of facet joints was more sagittally oriented in group A than in any other group. This difference was highly significant at the L4-5 level. The incidence of more sagittally oriented L4-5 facet joints was also significantly higher only in group A. The incidence of facet joint tropism, however, was not different in group A. These results support the view that the pronounced sagittal alignment of facet joints in patients with DS represents a secondary remodeling rather than a pre-existing morphology. Facet joint asymmetry does not seem to play a major role in the development of DS.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	European Spine Journal. - 7 : 5 (1998), p. 376-380. -
További szerzők:	Jeszenszky Dezső (1954-) (idegsebész, ortopédus) Bühler, D. W. Harms, Jürgen
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM034520
Első szerző:	Berlemann, U.
Cím:	Mechanisms of retrolisthesis in the lower lumbar spine : a radiographic study / Berlemann U., Jeszenszky D. J., Bühler D. W., Harms J.
Dátum:	1999
Megjegyzések:	The study investigates lower lumbar segments with posterior vertebral shifts (retrolisthesis) with respect to the orientation of facet joints, disc height, lordosis of the lumbar spine, and orientation of vertebral endplates. Standing lumbar radiographs as well as CT and/or MRI investigations of 69 patients were analyzed. Data from patients with retrolisthesis (20 cases) were compared to data from patients with degenerative spondylolisthesis (DS, 23 cases), and from patients without signs of vertebral shifts (26 cases). The orientation of facet joints in segments with retrolisthesis was not different from segments without shifts, whereas the facet joints in patients with DS were oriented more sagittally. The overall lordosis of the lumbar spine and the endplate inclination were considerably reduced in patients with retrolisthesis, especially compared to those with DS. Disc height was comparable in retrolisthesis and DS, but was reduced compared to segments without shifts. The results support biomechanical considerations, that a retrolisthesis of a lower lumbar spine segment is correlated with a reduction of lumbar lordosis, endplate inclination, and segmental height.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Acta Orthopaedica Belgica. - 65 : 4 (1999), p. 472-477. -
További szerzők:	Jeszenszky Dezső (1954-) (idegsebész, ortopédus) Bühler, D. W. Harms, Jürgen
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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