Logo of The Journal of Bone & Joint Surgery (Br)
Quick search:        
          Advanced Search
Guest Access | Sign In
Journal of Bone and Joint Surgery - British Volume, Vol 87-B, Issue 1, 36-40.
doi: 10.1302/0301-620X.87B1.14924  
Copyright © 2005 by British Editorial Society of Bone and Joint Surgery
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow FrenchSpanishItalianRomanianPolishRussianCzech
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow My Folders
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (15)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Mountney, J.
Right arrow Articles by Thomas, N. P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Mountney, J.
Right arrow Articles by Thomas, N. P.

Tensile strength of the medial patellofemoral ligament before and after repair or reconstruction

J. Mountney, FRCS, Specialist Registrar in Orthopaedic Surgery1; W. Senavongse, BEng, MSc, PhD, Research Associate Biomechanics Section2; A. A. Amis, DSc, FIMechE, Professor of Orthopaedic Biomechanics2; and N. P. Thomas, FRCS, Consultant Orthopaedic Surgeon1

1 North Hampshire Hospital, Basingstoke, Hampshire RG24 9NA, UK.
2 Departments of Mechanical Engineering and Musculoskeletal Surgery Imperial College, South Kensington Campus, London SW7 2AZ, UK.

Correspondence should be sent to Professor A. A. Amis.

The tensile strength of the medial patellofemoral ligament (MPFL), and of surgical procedures which reconstitute it, are unknown. Ten fresh cadaver knees were prepared by isolating the patella, leaving only the MPFL as its attachment to the medial femoral condyle. The MPFL was either repaired by using a Kessler suture or reconstructed using either bone anchors or one of two tendon grafting techniques. The tensile strength and the displacement to peak force of the MPFL were then measured using an Instron materials-testing machine.

The MPFL was found to have a mean tensile strength of 208 N (SD 90) at 26 mm (SD 7) of displacement. The strengths of the other techniques were: sutures alone, 37 N (SD 27); bone anchors plus sutures, 142 N (SD 39); blind-tunnel tendon graft, 126 N (SD 21); and through-tunnel tendon graft, 195 N (SD 66). The last was not significantly weaker than the MPFL itself.




This article has been cited by other articles:


Home page
 J Bone Joint Surg BrHome page
J. S. Mulford, C. J. Wakeley, and J. D. J. Eldridge
Assessment and management of chronic patellofemoral instability
J Bone Joint Surg Br, June 1, 2007; 89-B(6): 709 - 716.
[Abstract] [Full Text] [PDF]


(c) British Editorial Society of Bone and Joint Surgery All Rights Reserved
Registered charity no: 209299     Print ISSN: 0301-620X
Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General