The connective-tissue envelope in revascularisation of patellar tendon grafts

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Détails sur la publication

Liste des auteurs: Sckell A
Année de publication: 1999
Numéro du volume: 81
Numéro de publication: 5
Page d'accueil: 915
Dernière page: 920
Nombre de pages: 6
Languages: Anglais-Royaume-Uni (EN-GB)


Résumé

Free patellar tendon grafts used for the intra-articular replacement of
ruptured anterior cruciate ligaments (ACL) lack perfusion at the time of
implantation. The central core of the graft undergoes a process of
ischaemic necrosis which may result in failure. Early reperfusion of the
graft may diminish the extent of this process. We assessed the role of
peritendinous connective tissue in the revascularisation of the patellar
tendon graft from the day of implantation up to 24 days in a murine
model using intravital microscopy. The peritendinous connective-tissue
envelope of the graft was either completely removed, partially removed
or not stripped before implantation into dorsal skinfold chambers of
recipient mice. Initial revascularisation of the grafts with preserved
peritendinous connective tissues began after two days. The process was
delayed by five to six times in completely stripped patellar tendons (p
< 0.05). Only grafts with preserved connective tissues showed high
viability whereas those which were completely stripped appeared to be
subvital. The presence of peritendinous connective tissues accelerates
the revascularisation of free patellar tendon grafts.


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Dernière mise à jour le 2019-13-08 à 00:18