Purpose: The purpose of our study was to investigate the functional outcome after anterior cruciate ligament (ACL) reconstruction using bone-patellar tendon-bone (BPTB) and quadrupled semitendinosus and gracilis tendon (ST/G) autografts by evaluating stride-to-stride variability.
Methods: Six patients with BPTB and 6 patients with STG ACL reconstruction, 2 years postoperatively, and 6 healthy control subjects walked on a treadmill at a self-selected pace while 2 minutes of continuous kinematic data were recorded with a 6-camera optoelectronic system. Stride-to-stride variability was calculated from the knee flexion/extension data using the nonlinear measure of approximate entropy, which estimates the regularity of movement patterns over time.
Results: ACL reconstruction affects stride-to-stride variability. Both the BPTB and the ST/G groups had significantly larger approximate entropy values than the healthy controls. No differences were found between the BPTB and the ST/G approximate entropy values.
Conclusions: After ACL reconstruction using either BPTB or quadrupled ST/G, there is increased gait variability as compared to healthy individuals. This could be caused by the altered neuromuscular activity found in ACL-reconstructed limbs.
Level Of Evidence: Level III, case control study.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.arthro.2009.01.016 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Higher incidence of postoperative complications in patients with simultaneous patellar tendon and anterior cruciate ligament ruptures following single surgery: a case series and literature review.
BMC Musculoskelet Disord
January 2025
Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing, China.
Background: Patients with simultaneous ruptures of the patellar tendon (PT) and anterior cruciate ligament (ACL) underwent PT repair and ACL reconstruction in a single or staged surgery. However, due to the limited cases, the design of previous studies was mostly case report with varying conclusions regarding recommended surgical strategy selection, the optimal surgical strategy remains a subject of debate.
Methods: We conducted a retrospective case series and literature review, including 10 cases from local institution and 27 cases from 17 studies.
[Effectiveness of peripheral nerve blockade in pain management for patients undergoing anterior cruciate ligament reconstruction: a retrospective observational study].
Acta Ortop Mex
January 2025
Unidad de Investigación. Clínica INDISA. Santiago, Chile.
Introduction: therapeutic equivalence has been established in the effectiveness of peripheral nerve blocks in the management of pain in the postoperative period of anterior cruciate ligament reconstruction. However, it is unknown whether this effect is modulated by the anesthesiologist's experience. The objective was to describe the effectiveness of peripheral nerve blocks during the first 24 hours of the postoperative period, considering patient characteristics and the anesthesiologist's experience.
View Article and Find Full Text PDFDownregulation of the PI3K/AKT/mTOR/MMP-13 Pathway for Promoting Interface Healing via Lubricating Microspheres.
Acta Biomater
January 2025
Clinical Center for Sports Medicine, Department of Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, P. R. China.. Electronic address:
Interface friction impedes tissue healing and stimulates interface cells to produce matrix metalloproteinases (MMPs); however, the precise mechanisms underlying matrix degradation, and the formation of fibrous scars remain unclear. This research involved the development of interface lubricating microspheres that inhibit the PI3K/AKT/mTOR signaling pathway in tenocytes. This inhibition significantly decreased MMP-13 expression and increased COL-1 production, thereby facilitating interface repair and regeneration.
View Article and Find Full Text PDFAfter Anterior Cruciate Ligament Surgery, Variables Associated With Returning to the Same Surgeon If a Subsequent Antrior Cruciate Ligament Surgery Is Needed?
J Am Acad Orthop Surg Glob Res Rev
January 2025
From the Yale Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, CT.
Introduction: Anterior cruciate ligament reconstructions (ACLrs) unfortunately can require revision ACLr, or contralateral ACLr may be indicated (together subsequent ACLr). This study aimed to examine the rate of and factors associated with returning to the same surgeon.
Methods: Patients who underwent ACLr and subsequent ACLr within 3 years were abstracted from the PearlDiver database.
Adequate Failure Loads for Modified Lemaire Lateral Extra-articular Tenodesis Are Achieved With an Interference Screw, Staple, and Suture Anchor: A Biomechanical Study of Structural Properties.
Am J Sports Med
January 2025
Department of Orthopedics and Rehabilitation, University of Vermont, Burlington, Vermont, USA.
Background: A lateral extra-articular tenodesis (LET) is increasingly being utilized to augment an anterior cruciate ligament reconstruction because it has been shown to reduce the risk of postreconstruction graft failure or recurrent rotatory instability. Various femoral fixation techniques are available, including the use of an interference screw, staple, or suture anchor.
Purpose: To determine and compare the biomechanical properties of an LET graft when using an interference screw, staple, or suture anchor for the femoral fixation for a modified Lemaire LET.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!