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001-es BibID:BIBFORM028373
Első szerző:Molnár Szabolcs (ortopéd sebész, traumatológus)
Cím:Ex Vivo and In Vitro Determination of the Axial Rotational Axis of the Human Thoracic Spine / Molnár Szabolcs, Manó Sándor, Kiss László, Csernátony Zoltán
Dátum:2006
ISSN:0362-2436
Megjegyzések:Different geometrical and biomechanical evaluations were performed to determine the axial rotational axis of the thoracic spine.OBJECTIVE: Our research group has been dealing with the determination of the axial rotational axis of the thoracic spine. Here, we would like to present the geometrical and experimental results of our trials. With our experiments, we are trying to evaluate the contradictions of the related literature.SUMMARY OF BACKGROUND DATA: In the present state, we know quite a lot about the biomechanics of healthy and pathologic spines. Nevertheless, for a seemingly simple question like the position of the axial rotation of the thoracic spine, the literature gives contradicting results. During correction of a scoliotic deformity, when trying to correct the pathologic rotation, not knowing the physiologic rotation can be hazardous.METHODS: We wanted to clarify this question, so we examined the thoracic spine in many different ways. First, we examined the problem from a geometrical point of view then we modeled the different rotational axes by studying the change in volume of the spinal canal. Finally, we used cadaver spines that we rotated and examined with radiographs and digital pictures.RESULTS: Based on the results, we made the following establishments: most of the center points fell on the anterior half of the vertebral body or into the spinal canal, basically on the midsagittal axis of the vertebra. The rib cage has a significant effect on the place of the axis. After removing the ribs, the axis of axial rotation moved forward.CONCLUSIONS: After evaluating the results, we determined that the most likely place for the rotational axis is on the median-sagittal plane, in the anterior portion of the spinal canal.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
thoracic spine
rotational axis
biomechanics
scoliosis
Megjelenés:Spine. - 31 : 26 (2006), p. E984-E991. -
További szerzők:Manó Sándor (1977-) (gépészmérnök, számítógépes tervezőmérnök) Kiss László (1978-) (ortopéd sebész, traumatológus) Csernátony Zoltán (1959-2023) (ortopéd sebész, traumatológus)
Pályázati támogatás:T 034889
OTKA
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001-es BibID:BIBFORM028406
Első szerző:Molnár Szabolcs (ortopéd sebész, traumatológus)
Cím:Occipitoatlantoaxial Instability and Congenital Thoracic Vertebral Deformity in Pierre Robin Sequence / Molnár Szabolcs, Szappanos László, Körmendi Zoltán, Veres Róbert
Dátum:2007
ISSN:0362-2436
Megjegyzések:Case report of a patient with Pierre Robin sequence who presented with occipitoatlantoaxial instability and congenital thoracic deformity.OBJECTIVE: As there are lack of similar cases in the literature, we would like to introduce a case of a patient with associated malformations, the consultations that we consider that are obligatory, and our decision-making process. We would also like to demonstrate the follow-up plan and the further key points about either the conservative or the surgical solution of the problem.SUMMARY OF BACKGROUND DATA: The occurrences of 2 malformations (Pierre Robin sequence and occipitoatlantoaxial instability) together are very rare. We have found only 1 publication in the related literature about this topic. We consider that this rare appearance is due to the difficulty in diagnosing this problem. There is no clinical evidence that musculoskeletal examinations are indicated in a patient with Pierre Robin sequence, and it is difficult to check for all the possible deformities.METHOD: As congenital scoliosis appeared only at 6 years of age in the case of this child with Pierre Robin syndrome, we promptly began to investigate for other musculoskeletal defects. We would like to demonstrate the investigation process and emphasize the necessity of conventional and functional radiographs, computed tomography, and magnetic resonance images.RESULTS: We have not found similar cases to refer to, so we made our decision about conservative treatment of the craniocervical instability knowing that we will have to follow up the progression of both the congenital thoracic scoliotic deformity and the occipitoatlantoaxial instability later.CONCLUSION: To recognize a rare case is a big challenge indeed due to the lack of the investigational protocol, the key points of the decision process, the prognostic classification system, and the progression of the disease. We recommend that one should individualize and follow up the patient frequently.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Pierre Robin sequence
occipitoatlantoaxial instability
vertebral deformity
congenital scoliosis
Megjelenés:Spine. - 32 : 17 (2007), p. E501-504. -
További szerzők:Szappanos László Körmendi Zoltán Veres Róbert
Internet cím:Szerző által megadott URL
DOI
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