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Titolo:
Behavior of blood vessels during lower-leg lengthening using the Ilizarov method
Autore:
Fink, B; Singer, J; Braunstein, S; Schwinger, G; Schmielau, G; Ruther, W;
Indirizzi:
Univ Hamburg, Hosp Eppendorf, Dept Orthopaed, D-20246 Hamburg, Germany Univ Hamburg Hamburg Germany D-20246 Orthopaed, D-20246 Hamburg, Germany
Titolo Testata:
JOURNAL OF PEDIATRIC ORTHOPAEDICS
fascicolo: 6, volume: 19, anno: 1999,
pagine: 748 - 753
SICI:
0271-6798(199911/12)19:6<748:BOBVDL>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Keywords:
blood vessels; callus distraction; fixator; Ilizarov; leg-lengthening;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Fink, B Univ Hamburg, Hosp Eppendorf, Dept Orthopaed, Martinistr 52, D-20246 Hamburg, Germany Univ Hamburg Martinistr 52 Hamburg Germany D-20246 mburg, Germany
Citazione:
B. Fink et al., "Behavior of blood vessels during lower-leg lengthening using the Ilizarov method", J PED ORTH, 19(6), 1999, pp. 748-753

Abstract

Using a ring fixator, lengthening of the right lower leg by 2.5 cm at a distraction rate of 2 x 0.5 mm per day was performed in 24 beagle dogs. Aftera postoperative latency period of 5 days and a distraction phase of 25 days, half the dogs were killed (30-day group). The remaining half were killedafter a second interval of 25 days (55-day group). After the experiment, the anterior tibialis artery and vein with their supporting vessels, as wellas the lesser saphenous vein of both the lengthened right side and the control side were excised and examined histologically, histomorphometrically, and electron microcopically. No morphologic changes of the vascular walls and no increase of collagenous or elastic fibers could be found. The histomorphometric evaluations showed a significant increase in the number of vase vasorum in the dogs of bath the 30- and 55-day groups. No significant difference in thickness of the vascular wall, tunica media, and adventitia couldbe observed between the lengthened and the control side in both dog groups. It seems that blood vessels can adapt to continuous tension during callusdistraction without suffering structural damage and are the least limitingfactor concerning distraction speed, distraction rhythm, and distraction length during callus distraction.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/05/20 alle ore 17:11:03