Τίτλος:
ACL reconstruction with semitendinosus tendon autograft without
detachment of its tibial insertion: a histologic study in a rabbit model
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
The purpose of this study was to evaluate the histologic changes that
occur between 3 and 12 weeks in an intra-articular, semitendinosus
autograft, which was harvested without detachment of its tibial
insertion and was placed through tibial and femoral drill holes, in a
rabbit model. About 30 New Zealand white rabbits underwent ACL
replacement using a semitendinosus tendon autograft. The normal ACL was
transected at its femoral and tibial insertions. The tendon graft was
harvested without detachment of its tibial insertion and its free end
was secured with sutures. The graft was then passed through one tibial
and one femoral tunnel and secured at the lateral femoral condyle. All
animals were divided into three groups and were killed at 3, 6 and 12
weeks after surgery. Nine more animals underwent ACL reconstruction
using a free semitendinosus tendon autograft. These animals were used as
controls. The intra-articular portion of the graft and the interface
between the bone tunnel and the graft was evaluated postoperatively for
gross morphology and histological appearance. Results of this study
showed that in a rabbit model the semitendinosus tendon autograft
retained its viability when harvested without detachment of its
peripheral insertion. On contrary, at the control group, necrosis of the
graft was observed 3 weeks after surgery and progressively
revascularization and maturation occurred 6 and 12 weeks after surgery.
Retaining the tibial insertion of the semitendinosus autograft seems to
preserves its viability and bypasses the stages of avascular necrosis
and revascularization that occurs with the use of a free tendon
autograft.
Συγγραφείς:
Papachristou, George
Nikolaou, Vassilios
Efstathopoulos,
Nikolaos
Sourlas, John
Lazarettos, John
Frangia, Konstantina
and Papalois, Apostolos
Περιοδικό:
Knee Surgery, Sports Traumatology, Arthroscopy
Λέξεις-κλειδιά:
ACL reconstruction; vascularized autograft; semitendinosus tendon;
histologic study; semitendinosus tendon peripheral detachment
DOI:
10.1007/s00167-007-0374-0
