The purpose of the present study was to make a histological analysis of the remodelling process of hamstring tendon graft used as Anterior Cruciate Ligament (ACL). The hamstring graft of eight patients was biopsied at different follow-up times from 1 to 10 years. The specimens were analysed with transmission electron microscopy (TEM) at ultrastructural level comparing them with a native ACL and a native hamstring graft. The hamstring graft was found to undergo ultrastructural changes in terms of number and diameter of fibrils with the major changes occurring in the first 2 years. At longer times after surgery (48 and 120 months) no important further changes were evident and the ultrastructure did not vary substantially from 2 to 10 years. In conclusion, the hamstring tendon used as ACL graft undergoes a transformation process but does not match the ultrastructure pattern of a normal ACL up to 10 years.
Titolo: | Electron microscopy of the remodelling process in hamstring tendon used as ACL graft | |
Autore/i: | ZAFFAGNINI, STEFANO; DE PASQUALE, VIVIANA; MARCHESINI REGGIANI, LEONARDO; Russo A.; AGATI, PATRIZIA; BACCHELLI, BEATRICE; MARCACCI, MAURILIO | |
Autore/i Unibo: | ||
Anno: | 2010 | |
Rivista: | ||
Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/s00167-009-0925-7 | |
Abstract: | The purpose of the present study was to make a histological analysis of the remodelling process of hamstring tendon graft used as Anterior Cruciate Ligament (ACL). The hamstring graft of eight patients was biopsied at different follow-up times from 1 to 10 years. The specimens were analysed with transmission electron microscopy (TEM) at ultrastructural level comparing them with a native ACL and a native hamstring graft. The hamstring graft was found to undergo ultrastructural changes in terms of number and diameter of fibrils with the major changes occurring in the first 2 years. At longer times after surgery (48 and 120 months) no important further changes were evident and the ultrastructure did not vary substantially from 2 to 10 years. In conclusion, the hamstring tendon used as ACL graft undergoes a transformation process but does not match the ultrastructure pattern of a normal ACL up to 10 years. | |
Data prodotto definitivo in UGOV: | 2011-02-15 13:44:21 | |
Appare nelle tipologie: | 1.01 Articolo in rivista |