Purpose: The purpose of the present study was to determine, in vivo, the effect of different types of meniscectomy on an ACL-deficient knee. Methods: Using a computer-assisted navigation system, 56 consecutive patients (45 men and 11 women) were subjected to a biomechanical testing with Lachman test (AP30), drawer test (AP90), internal/external rotation test, varus/valgus rotation test and pivot-shift test. The patients were divided into three groups according to the status of the medial meniscus. Group BH, 8 patients with bucket-handle tear of medial meniscus underwent a subtotal meniscectomy; Group PHB, 19 patients with posterior horn body of medial meniscus tear underwent a partial meniscectomy; and Group CG with isolated ACL rupture, as a control group, with 29 patients. Results: A significant difference in anterior tibial translation was seen at 30 grades and in 90 grades between BH and PHB groups compared to the CG. In response to pivot-shift test, no significant differences in terms of AREA and POSTERIOR ACC were found among the three groups (n.s). Concerning the anterior displacement of the pivot shift a statistically significant differences among the three tested groups was found. Conclusion: The present study shows that meniscal defects significantly affect the kinematics of an ACL-deficient knee in terms of anterior tibial translation under static and dynamic testing.
Does meniscus removal affect ACL-deficient knee laxity? An in vivo study / Zaffagnini, S.; Signorelli, C; Bonanzinga, T.; Grassi, A.; Galán, H.; Akkawi, I.; Bragonzoni, L.; Cataldi, F.; Marcacci, M.. - In: KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY. - ISSN 0942-2056. - STAMPA. - 24:11(2016), pp. 1-6. [10.1007/s00167-016-4222-y]
Does meniscus removal affect ACL-deficient knee laxity? An in vivo study
ZAFFAGNINI, STEFANO;BONANZINGA, TOMMASO;GRASSI, ALBERTO;AKKAWI, IBRAHIM;BRAGONZONI, LAURA;MARCACCI, MAURILIO
2016
Abstract
Purpose: The purpose of the present study was to determine, in vivo, the effect of different types of meniscectomy on an ACL-deficient knee. Methods: Using a computer-assisted navigation system, 56 consecutive patients (45 men and 11 women) were subjected to a biomechanical testing with Lachman test (AP30), drawer test (AP90), internal/external rotation test, varus/valgus rotation test and pivot-shift test. The patients were divided into three groups according to the status of the medial meniscus. Group BH, 8 patients with bucket-handle tear of medial meniscus underwent a subtotal meniscectomy; Group PHB, 19 patients with posterior horn body of medial meniscus tear underwent a partial meniscectomy; and Group CG with isolated ACL rupture, as a control group, with 29 patients. Results: A significant difference in anterior tibial translation was seen at 30 grades and in 90 grades between BH and PHB groups compared to the CG. In response to pivot-shift test, no significant differences in terms of AREA and POSTERIOR ACC were found among the three groups (n.s). Concerning the anterior displacement of the pivot shift a statistically significant differences among the three tested groups was found. Conclusion: The present study shows that meniscal defects significantly affect the kinematics of an ACL-deficient knee in terms of anterior tibial translation under static and dynamic testing.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.