Clinical relevance of static and dynamic tests after anatomical double-bundle ACL reconstruction
- 349 Downloads
A computer navigation system was used to collect kinematic data of 18 subjects undergoing ACL reconstruction. Surgical procedure was an anatomical four-tunnel hamstring double-bundle reconstruction. Static laxity and dynamic laxity were analyzed before and after graft passage and fixation. Correlations between static and dynamic laxities as well as with the preoperative IKDC score were determined. Static and dynamic laxities were significantly reduced after anatomic double-bundle ACL reconstruction (P < 0.05). There were no significant correlations between static and dynamic laxities (r < 0.4, P > 0.05). The preoperative IKDC score was only related to preoperative dynamic laxity (P < 0.01). The dynamic evaluation of pivot shift is able to better describe knee laxity, in particular rotational laxities and has no correlation with static laxity.
KeywordsACL Double bundle Pivot shift Navigation
- 1.Ahn JH, Lee SH (2007) Anterior cruciate ligament double-bundle reconstruction with hamstring tendon autografts. Arthroscopy 23:109e1–109e4Google Scholar
- 10.Forster IW, Warren-Smith CD, Tew M (1989) Is the KT1000 knee ligament arthrometer reliable? J Bone Jt Surg Br 71:843–847Google Scholar
- 11.Fukubayashi T, Torzilli PA, Sherman MF, Warren RF (1982) An in vitro biomechanical evaluation of anterior–posterior motion of the knee, tibial displacement, rotation, and torque. J Bone Jt Surg Am 64:258–264Google Scholar
- 22.Martelli S, Zaffagnini S, Bignozzi S, Lopomo NF, Iacono F, Marcacci M (2007) Kin-nav navigation system for kinematic assessment in anterior cruciate ligament reconstruction: features, use, and perspectives. Proc Inst Mech Eng [H] 221:725–737Google Scholar