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Titolo:
FUNCTIONAL IMPAIRMENT FOLLOWING SURGICAL DECOMPRESSION OF THE LUMBAR SPINE - A BIOMECHANICAL STUDY IN-VITRO
Autore:
QUINT U; WILKE HJ; LOER F; CLAES LE;
Indirizzi:
UNIV ESSEN GESAMTHSCH,ORTHOPAD KLIN & POLIKLIN,HUFELANDSTR 55 D-45122ESSEN GERMANY
Titolo Testata:
Zeitschrift fur Orthopadie und Ihre Grenzgebiete
fascicolo: 4, volume: 136, anno: 1998,
pagine: 350 - 357
SICI:
0044-3220(1998)136:4<350:FIFSDO>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
GER
Soggetto:
NEUTRAL ZONE; STENOSIS; INSTABILITY; SPONDYLOLISTHESIS; SURGERY; SYSTEM;
Keywords:
SPINAL BIOMECHANICS; SURGICAL DECOMPRESSION; SEGMENTAL INSTABILITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
47
Recensione:
Indirizzi per estratti:
Citazione:
U. Quint et al., "FUNCTIONAL IMPAIRMENT FOLLOWING SURGICAL DECOMPRESSION OF THE LUMBAR SPINE - A BIOMECHANICAL STUDY IN-VITRO", Zeitschrift fur Orthopadie und Ihre Grenzgebiete, 136(4), 1998, pp. 350-357

Abstract

Purpose: Dorsal decompression has become accepted as the standard surgical treatment for spinal stenosis. However, no consensus has been reached to date concerning the extent of resectioning required or the ensuing functional impairment of the segment. As a result, a discussion is now underway on the necessity of employing various additional methods for instrumented stabilisation. The aim of this biomechanical in vitro study is to objectify the functional impact of various defined decompression techniques. Methods: With the aid of a universal spine tester, the increasing defect situations following left hemifacetectomy, bilateral hemifacetectomy, left hemilaminotomy and laminectomy of the functional spinal unit L4/5 were assessed. A three-dimensional motion analysis was performed on six human lumbar spine specimens under the loading conditions flexion/extension, left/right bending and right/left rotation. Results: The results showed an increase in both the neutral zone and the range of motion under all the loading components. No significant differences were observed in coupled motions following decompression. Conclusions: Laminectomy leads to a distinct instability and the question arises of how much additive stability achieved by instrumented stabilization will be adequate?

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Documento generato il 21/09/20 alle ore 09:46:29