We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Impact of Quadriceps Tendon Graft Thickness on Electromechanical Delay and Neuromuscular Performance After ACL Reconstruction.
- Authors
Parrino, Rosalia L.; Adams, Will; Letter, Michael I.; Ripic, Zachary; Baraga, Michael G.; Kaplan, Lee D.; Harrah, Tanner; Tremblay, Julien; Luxenburg, Dylan; Conti, Joseph; Best, Thomas M.; Signorile, Joseph F.
- Abstract
Background: Both partial- and full-thickness quadriceps tendon (QT) graft harvests are used for anterior cruciate ligament reconstruction (ACLR). Purpose: To evaluate the impact of QT graft harvest depth (full or partial thickness) on electromechanical delay (EMD), peak torque (PT), and rate of torque development (RTD) after ACLR. Study Design: Controlled laboratory study. Methods: A total of 26 patients who underwent either partial-thickness (n = 14) or full-thickness (n = 12) autograft QT ACLR were recruited between June and November 2021 (>1 year before participation). Patients performed isokinetic knee extension testing with surface electromyography of the quadriceps muscles. Mixed repeated-measures analysis of variance with least significant difference post hoc testing was used to determine significant differences (mean difference [MD] ± SE) or interactions for all variables. Results: A significant speed×depth interaction was seen for the vastus medialis (P =.005). Pairwise analyses showed significantly longer EMD for the partial-thickness graft than the full-thickness graft (MD ± SE, 19.92 ± 6.33 ms; P =.006). In the partial-thickness graft, the EMD was significantly longer at 90 deg/s versus 180 deg/s (MD ± SE, 19.11 ± 3.95 ms; P <.001) and 300 deg/s (MD ± SE, 16.43 ± 5.30 ms; P =.006). For PT, the full-thickness graft had a significantly lower PT on the operated versus nonoperated side at all speeds (MD ± SE: 90 deg/s, −57.0 ± 10.5 N·m, P <.001; 180 deg/s, −26.0 ± 10.2 N·m, P =.020; 300 deg/s, −20.3 ± 8.9 N·m, P =.034). For RTD, the full-thickness graft showed significantly Slower RTD for the operated versus nonoperated side at all time points (MD ± SD: RTD0-25 (0-25% of the range of motion), −131.3 ± 50.9 N·m/s, P =.018; RTD25-50, −197.0 ± 72.5 N·m/s, P =.014; RTD50-75, −113.3 ± 39.8 N·m/s, P =.013; RTD75-100, −149.4 ± 35.9 N·m/s, P <.001). Conclusion: Compared with partial-thickness QT, full-thickness QT showed a shorter vastus medialis EMD at higher loading, and therefore greater stiffness, as well as slower RTD and lower PT across all testing speeds. Clinical Relevance: The impact of full-thickness QT autograft on EMD and neuromuscular performance should be considered for ACLR.
- Subjects
QUADRICEPS muscle physiology; IN vitro studies; STATISTICS; SKELETAL muscle; NEUROPHYSIOLOGY; ANALYSIS of variance; NEUROMUSCULAR system; TENDONS; VISUAL analog scale; BODY movement; DESCRIPTIVE statistics; QUADRICEPS tendon; ANTERIOR cruciate ligament surgery; BIOMECHANICS; ELECTROMYOGRAPHY; ISOKINETIC exercise; DATA analysis; DATA analysis software
- Publication
Orthopaedic Journal of Sports Medicine, 2023, Vol 11, Issue 10, p1
- ISSN
2325-9671
- Publication type
Article
- DOI
10.1177/23259671231201832