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Graft extrusion in open vs arthroscopic meniscus: transplantation: a 1 year comparative study of 39 patients

Peter Verdonk (UGent) , Tineke De Coninck (UGent) , Wouter Huysse (UGent) and René Verdonk (UGent)
Author
Organization
Abstract
Title: Graft Extrusion in Open vs Arthroscopic Meniscus Transplantation: A 1 Year Comparative Study of 39 patients. Purpose: to evaluate the radial displacement of meniscal allograft transplants (MATs) in patients operated with an open technique vs. an arthroscopic technique at 1 year postoperatively. Radial displacement or extrusion of the graft is frequently observed after meniscus transplantation. The hypothesis is that arthroscopically inserted MATs extrude less than open MATs and therefore have a more intra-articular position than open surgery transplants. Materials and Methods: 39 patients were included in the study: the first group of open surgery transplants consisted of 16 patients (10 lateral, 6 medial). The second group of arthroscopic transplants consisted of 21 patients (14 lateral, 7 medial). MR-images were taken one year post-surgery. The displacement, evaluated on 1,5T MR coronal images, was defined as the distance between the tibial plateau and the outer edge of the meniscus. Results: The radial displacement of lateral open surgery transplants (mean= 4,04 mm; SD= 1,46) is significantly larger (p < 0,05) than the displacement of arthroscopically implanted MATs (mean= 3,38 mm; SD= 0,85). The external displacement of medial open surgery transplants (mean= 4,71 mm; SD= 0,97) is significantly larger (p < 0,05) than the displacement of arthroscopically implanted MATs (mean= 2,36 mm; SD= 0,89). Conclusion: Graft position is influenced by the surgical technique; the radial displacement of arthroscopically implanted MATs is, both lateral and medial, significantly less than meniscal transplants implanted by open surgery. The clinical relevance remains to be determined.
Keywords
MRI, Displacement, Meniscus, Allograft transplants

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Chicago
Verdonk, Peter, Tineke De Coninck, Wouter Huysse, and René Verdonk. 2011. “Graft Extrusion in Open Vs Arthroscopic Meniscus: Transplantation: a 1 Year Comparative Study of 39 Patients.” In Final Program ISAKOS 2011, 83–83.
APA
Verdonk, Peter, De Coninck, T., Huysse, W., & Verdonk, R. (2011). Graft extrusion in open vs arthroscopic meniscus: transplantation: a 1 year comparative study of 39 patients. Final Program ISAKOS 2011 (pp. 83–83). Presented at the 8th biennial ISAKOS 2011.
Vancouver
1.
Verdonk P, De Coninck T, Huysse W, Verdonk R. Graft extrusion in open vs arthroscopic meniscus: transplantation: a 1 year comparative study of 39 patients. Final Program ISAKOS 2011. 2011. p. 83–83.
MLA
Verdonk, Peter, Tineke De Coninck, Wouter Huysse, et al. “Graft Extrusion in Open Vs Arthroscopic Meniscus: Transplantation: a 1 Year Comparative Study of 39 Patients.” Final Program ISAKOS 2011. 2011. 83–83. Print.
@inproceedings{1239948,
  abstract     = {Title: Graft Extrusion in Open vs Arthroscopic Meniscus Transplantation: A 1 Year Comparative Study of 39 patients. Purpose: to evaluate the radial displacement of meniscal allograft transplants (MATs) in patients
operated with an open technique vs. an arthroscopic technique at 1 year postoperatively. Radial displacement or extrusion of the graft is frequently observed after meniscus transplantation. The hypothesis is that arthroscopically inserted MATs extrude less than open MATs and therefore have a more intra-articular position than open surgery transplants. Materials and Methods: 39 patients were included in the study: the first group of open surgery transplants consisted of 16 patients (10 lateral, 6 medial). The second group of arthroscopic transplants consisted of 21 patients (14 lateral, 7 medial). MR-images were taken one year post-surgery. The displacement, evaluated on 1,5T MR coronal images, was defined as the distance between the tibial plateau and the outer edge of the meniscus. Results: The radial displacement of lateral open surgery transplants (mean= 4,04 mm; SD= 1,46) is significantly larger (p {\textlangle} 0,05) than the displacement of arthroscopically implanted MATs (mean= 3,38 mm; SD= 0,85). The external displacement of medial open surgery transplants (mean= 4,71 mm; SD= 0,97) is significantly larger (p {\textlangle} 0,05) than the displacement of arthroscopically implanted MATs (mean= 2,36 mm; SD= 0,89). Conclusion: Graft position is influenced by the surgical technique; the radial displacement of arthroscopically implanted MATs is, both lateral and medial, significantly less than meniscal
transplants implanted by open surgery. The clinical relevance remains to be determined.},
  articleno    = {270},
  author       = {Verdonk, Peter and De Coninck, Tineke and Huysse, Wouter and Verdonk, Ren{\'e}},
  booktitle    = {Final Program ISAKOS 2011},
  keyword      = {MRI,Displacement,Meniscus,Allograft transplants},
  language     = {eng},
  location     = {Rio De Janero, Brazil},
  pages        = {270:83--270:83},
  title        = {Graft extrusion in open vs arthroscopic meniscus: transplantation: a 1 year comparative study of 39 patients},
  year         = {2011},
}