Abstract
Background: Anterior cruciate ligament (ACL) deficiency alters 6 degrees of freedom knee kinematics, yet only anterior translation and internal rotation have been the primary measures in previous studies. Purpose: To compare the 6 degrees of freedom knee kinematics and the graft forces after single- and double-bundle ACL reconstructions under various external loading conditions. Study Design: Controlled laboratory study. Methods: Ten human cadaveric knees were tested with a robotic testing system under 4 conditions: intact, ACL deficient, single-bundle reconstructed with a quadrupled hamstring tendon graft, and double-bundle reconstructed with 2 looped hamstring tendon grafts. Knee kinematics and forces of the ACL or ACL graft in each knee were measured under 3 loading conditions: an anterior tibial load of 134 N, a simulated quadriceps muscle load of 400 N, and combined tibial torques (10 N·m valgus and 5 N·m internal tibial torques) at 0°, 15°, 30°, 60°, and 90° of knee flexion. Results: The double-bundle reconstruction restored the anterior and medial laxities closer to the intact knee than the single-bundle reconstruction. However, the internal rotation of the tibia under the simulated quadriceps muscle load was significantly decreased when compared with the intact knee after both reconstructions, more so after double-bundle reconstruction (P
| Original language | English |
|---|---|
| Pages (from-to) | 1359-1367 |
| Number of pages | 9 |
| Journal | American Journal of Sports Medicine |
| Volume | 38 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 2010 |
| Externally published | Yes |
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Keywords
- anterior cruciate ligament
- double bundle
- kinematics
- reconstruction
- single bundle
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation
- Medicine(all)
Cite this
Comparison of single- and double-bundle anterior cruciate ligament reconstructions in restoration of knee kinematics and anterior cruciate ligament forces. / Jong Keun Seon, Keun Seon; Gadikota, Hemanth R.; Wu, Jia Lin; Sutton, Karen; Gill, Thomas J.; Li, Guoan.
In: American Journal of Sports Medicine, Vol. 38, No. 7, 07.2010, p. 1359-1367.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Comparison of single- and double-bundle anterior cruciate ligament reconstructions in restoration of knee kinematics and anterior cruciate ligament forces
AU - Jong Keun Seon, Keun Seon
AU - Gadikota, Hemanth R.
AU - Wu, Jia Lin
AU - Sutton, Karen
AU - Gill, Thomas J.
AU - Li, Guoan
PY - 2010/7
Y1 - 2010/7
N2 - Background: Anterior cruciate ligament (ACL) deficiency alters 6 degrees of freedom knee kinematics, yet only anterior translation and internal rotation have been the primary measures in previous studies. Purpose: To compare the 6 degrees of freedom knee kinematics and the graft forces after single- and double-bundle ACL reconstructions under various external loading conditions. Study Design: Controlled laboratory study. Methods: Ten human cadaveric knees were tested with a robotic testing system under 4 conditions: intact, ACL deficient, single-bundle reconstructed with a quadrupled hamstring tendon graft, and double-bundle reconstructed with 2 looped hamstring tendon grafts. Knee kinematics and forces of the ACL or ACL graft in each knee were measured under 3 loading conditions: an anterior tibial load of 134 N, a simulated quadriceps muscle load of 400 N, and combined tibial torques (10 N·m valgus and 5 N·m internal tibial torques) at 0°, 15°, 30°, 60°, and 90° of knee flexion. Results: The double-bundle reconstruction restored the anterior and medial laxities closer to the intact knee than the single-bundle reconstruction. However, the internal rotation of the tibia under the simulated quadriceps muscle load was significantly decreased when compared with the intact knee after both reconstructions, more so after double-bundle reconstruction (P
AB - Background: Anterior cruciate ligament (ACL) deficiency alters 6 degrees of freedom knee kinematics, yet only anterior translation and internal rotation have been the primary measures in previous studies. Purpose: To compare the 6 degrees of freedom knee kinematics and the graft forces after single- and double-bundle ACL reconstructions under various external loading conditions. Study Design: Controlled laboratory study. Methods: Ten human cadaveric knees were tested with a robotic testing system under 4 conditions: intact, ACL deficient, single-bundle reconstructed with a quadrupled hamstring tendon graft, and double-bundle reconstructed with 2 looped hamstring tendon grafts. Knee kinematics and forces of the ACL or ACL graft in each knee were measured under 3 loading conditions: an anterior tibial load of 134 N, a simulated quadriceps muscle load of 400 N, and combined tibial torques (10 N·m valgus and 5 N·m internal tibial torques) at 0°, 15°, 30°, 60°, and 90° of knee flexion. Results: The double-bundle reconstruction restored the anterior and medial laxities closer to the intact knee than the single-bundle reconstruction. However, the internal rotation of the tibia under the simulated quadriceps muscle load was significantly decreased when compared with the intact knee after both reconstructions, more so after double-bundle reconstruction (P
KW - anterior cruciate ligament
KW - double bundle
KW - kinematics
KW - reconstruction
KW - single bundle
UR - http://www.scopus.com/inward/record.url?scp=77954337042&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954337042&partnerID=8YFLogxK
U2 - 10.1177/0363546510361494
DO - 10.1177/0363546510361494
M3 - Article
C2 - 20392968
AN - SCOPUS:77954337042
VL - 38
SP - 1359
EP - 1367
JO - American Journal of Sports Medicine
JF - American Journal of Sports Medicine
SN - 0363-5465
IS - 7
ER -