MRI can help assess additional damage from ACL injuries

An acute anterior cruciate ligament (ACL) injury often also inflicts damage...Read more on AuntMinnie.comRelated Reading: 3D knee model reveals ACL tear same in men, women Musculoskeletal speakers reveal trade secrets on sports injuries 5-minute MRI protocol can be effective for knee scans Sports injury website brings radiology's insights to the fans MRI reveals possible complications after ACL reconstruction
Source: Headlines - Category: Radiology Source Type: news

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In conclusion, our results suggest that the addition of BFR to exercise contributes to neuromuscular adaptations only when RT is performed with low-load. Furthermore, we found a significant association between the changes in [HHb] (i.e., metabolic stress) and increases in muscle CSA from T2 to T3 only for the LL-BFR, when muscle edema was attenuated. Introduction Resistance training- (RT) induced changes in muscle strength are partially due to increases in muscle cross-sectional area (CSA) (i.e., muscle hypertrophy) and changes in muscle architecture (e.g., increase in the pennation angle of muscle fibers) (Aagaard...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
AbstractPurposeThe purpose of this study was to evaluate whether a flattened bone tunnel has a positive effect on the tendon –bone healing (TBH) process in the early period after anterior cruciate ligament (ACL) reconstruction.MethodsSeventy-two New Zealand White rabbits were randomly allocated into two groups, the flattened tunnel (FT) group and the conventional round tunnel (RT) group. We compared the cross-sectional areas and diameters of the bone tunnels between the two groups through computed tomography (CT) scanning. TBH results between the two groups were assessed by histological analysis, micro-CT scanning an...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - Category: Orthopaedics Source Type: research
ConclusionFemoral tunnel widening after hamstring graft was not significantly different between Endobutton and Double Cross-Pin fixation techniques.
Source: Journal of Clinical Orthopaedics and Trauma - Category: Orthopaedics Source Type: research
ConclusionsWhen performing simultaneous ACL and ALL ligament reconstruction, the ALL femoral tunnel should be drilled with an angle of 30 ° anterior in the axial plane and 30° proximal in the coronal plane. Tunnels with an angle of 0° in the axial plane showed high risk of contact and disruption of the posterior femoral cortex; thus, these angles should be avoided. The clinical relevance of this work is that an ALL anatomical recon struction does not represent a risk when performing a simultaneous ACL reconstruction as long as the ALL tunnel is reamed with a proximal and anterior angulation.
Source: Knee Surgery, Sports Traumatology, Arthroscopy - Category: Orthopaedics Source Type: research
Authors: Liu Z, Hu X, Zhang X, Jiang Y, Wang J, Ao Y Abstract The purpose of this article was to demonstrate an adjustable oval bone tunnel ACLR technique. Aim of this technique was to fit the direction and shape of the footprint and tendon-bone healing passage (TBHP) which was defined as the passage of the normal ACL insertion embedded in the bone as closely as possible. 30 fresh-frozen human cadaveric knees were used to do the ACL anatomical insertions research. 20 patients underwent adjustable oval bone tunnel surgery and 20 patients were in round tunnel group. The tunnel of the presented technique was first dri...
Source: American Journal of Translational Research - Category: Research Tags: Am J Transl Res Source Type: research
Conclusions: This technique can restore motion and stability after ACL injury in skeletally immature patients while minimizing the risk of growth disturbance that might result in length or angular deformities. Level of Evidence: IV.
Source: Current Orthopaedic Practice - Category: Orthopaedics Tags: SPECIAL FOCUS: Sports Medicine Rotation Source Type: research
AbstractPurposeRecent studies have emphasized the importance of anatomical ACL reconstruction to restore normal knee kinematics and stability. Aim of this study is to evaluate and compare the ability of the anteromedial (AM) and transtibial (TT) techniques for ACL reconstruction to achieve anatomical placement of the femoral and tibial tunnel within the native ACL footprint and to determine forces within the graft during functional motion. As the AM technique is nowadays the technique of choice, the hypothesis is that there are significant differences in tunnel features, reaction forces and/or moments within the graft when...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - Category: Orthopaedics Source Type: research
AbstractThe purpose of this study was to identify how the brain simultaneously perceives proprioceptive input during joint loading in anterior cruciate ligament reconstruction (ACLR) patients, when compared to healthy controls. Seventeen ACLR patients (ACLR) and seventeen controls (CONT) were tested for the somatosensory cortical activation using electroencephalography (EEG) while measuring knee laxity using a knee arthrometer. The relationship between cortical activation and joint laxity within group was also examined. The ACLR patients had increased cortical activation (36.4%  ± 11.5%) in the somatosenso...
Source: Scandinavian Journal of Medicine and Science in Sports - Category: Sports Medicine Authors: Tags: ORIGINAL ARTICLE Source Type: research
AbstractPurposeThe purpose of this study was to compare femoral graft bending angle between patients with femoral tunnel reamed at less than 80 ° of knee flexion and those with 80° and above in anatomical anterior cruciate ligament (ACL) reconstruction using modified transtibial technique.MethodsForty-eight patients who underwent ACL reconstruction using bone –patellar-tendon–bone autograft in modified transtibial technique and CT scan at 1 week postoperatively were included in this study. A femoral guidewire insertion into aimed femoral position at the medial wall of the femoral lateral condyle was sta...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - Category: Orthopaedics Source Type: research
AbstractPurposeTo assess the risk of femoral tunnel convergence in combined anterior cruciate ligament (ACL) and anterolateral ligament (ALL) reconstructions. The hypothesis was that a more proximal and anterior orientation of the ALL femoral tunnel should reduce the risk of convergence with the ACL femoral tunnel.Methods15 fresh-frozen cadaver knees were examined. An anatomic ACL femoral tunnel was drilled arthroscopically in each specimen and ALL tunnels were made in two directions: (1) 0 ° coronal angulation and 20° axial angulation, (2) 30° coronal angulation and 30° axial angulation. Computed tomograph...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - Category: Orthopaedics Source Type: research
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