A Biomechanical Comparison of Posterior Cruciate Ligament Reconstructions Using Single- and Double-Bundle Tibial Inlay Techniques

Background: The efficacy of using a double-bundle versus single-bundle graft for posterior cruciate ligament reconstruction has not been demonstrated. Hypothesis: A double-bundle graft restores knee kinematics better than a single-bundle graft does in tibial inlay PCL reconstructions. Study Design:...

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Bibliographic Details
Published in:American journal of sports medicine 2005-07, Vol.33 (7), p.976-981
Main Authors: Bergfeld, John A., Graham, Scott M., Parker, Richard D., Valdevit, Antonio D. C., Kambic, Helen E.
Format: Article
Language:English
Subjects:
Achilles Tendon - transplantation
Adult
Biological and medical sciences
Biomechanical Phenomena
Care and treatment
Female
Fundamental and applied biological sciences. Psychology
Humans
Injuries
Knee
Knee injuries
Knee Injuries - surgery
Male
Medical sciences
Middle Aged
Posterior cruciate ligament
Posterior Cruciate Ligament - injuries
Posterior Cruciate Ligament - surgery
Reconstructive Surgical Procedures
Risk factors
Skin & tissue grafts
Sport (general aspects)
Sports injuries
Sports medicine
Tibia
Traumas. Diseases due to physical agents
Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
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Summary:Background: The efficacy of using a double-bundle versus single-bundle graft for posterior cruciate ligament reconstruction has not been demonstrated. Hypothesis: A double-bundle graft restores knee kinematics better than a single-bundle graft does in tibial inlay PCL reconstructions. Study Design: Controlled laboratory study. Methods: Eight cadaveric knees were subjected to 6 cycles from a 40-N anterior reference point to a 100-N posterior translational force at 10°, 30°, 60°, and 90° of flexion. Testing was performed for the intact and posterior cruciate deficient knee as well as for both reconstructed conditions. Achilles tendons, divided into 2 equal sections, were prepared as both single-bundle and double-bundle grafts. Both grafts were employed in the same knee, and the order of graft reconstruction was randomized. Results: There were no statistical differences in translation between the intact state and either of the reconstructions ( P > .05) or between either of the reconstructions at any flexion angle ( P > .05). Conclusion: No differences in translation between the 2 graft options were identified. Clinical Relevance: The use of a double-bundle graft may not offer any advantages over a single-bundle graft for tibial inlay posterior cruciate reconstructions. Keywords: posterior cruciate ligament (PCL) double bundle reconstruction ligament knee
ISSN:0363-5465
1552-3365
DOI:10.1177/0363546504273046