scholarly journals Bilateral Comparisons of Quadriceps Thickness after Anterior Cruciate Ligament Reconstruction

Medicina ◽  
2020 ◽  
Vol 56 (7) ◽  
pp. 335
Author(s):  
Joo-Hyun Lee ◽  
Soul Cheon ◽  
Hyung-Pil Jun ◽  
Yu-Lun Huang ◽  
Eunwook Chang
Keyword(s):  
Anterior Cruciate Ligament ◽  
Anterior Cruciate Ligament Reconstruction ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Muscle Thickness ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Portable Ultrasound ◽  
Cruciate Ligament Reconstruction ◽  
Anterior Cruciate

Background and objectives: Anterior cruciate ligament reconstruction (ACLR) often results in quadricep atrophy. The purpose of this study was to compare the bilateral thickness of each quadricep component before and after ACLR. Materials and Methods: Cross-sectional study design. In 14 patients who underwent ACLR, bilateral quadricep muscle thicknesses were measured using a portable ultrasound device, 1 h before and 48–72 h after ACLR. Two-way analysis of variance (ANOVA) was used to compare muscle thickness pre- and post-ACLR between the limbs. Results: The primary finding was that the vastus intermedius (VI) muscle was significantly smaller in the reconstructed limb after ACLR compared to that in the healthy limb (Reconstructed limb; RCL = Pre-operated (PRE): 19.89 ± 6.91 mm, Post-operated(POST): 16.04 ± 6.13 mm, Healthy limb; HL = PRE: 22.88 ± 6.07, POST: 20.90 ± 5.78 mm, F = 9.325, p = 0.009, η2p = 0.418). Conclusions: The results represent a selective surgical influence on the quadricep muscle thickness. These findings highlight the need of advanced strengthening exercises in order to restore VI thickness after ACLR.

scholarly journals The Effects of Anterior Cruciate Ligament Reconstruction on Individual Quadriceps Muscle Thickness and Circulating Biomarkers

2019 ◽  
Vol 16 (24) ◽  
pp. 4895 ◽  
Author(s):  
Jae-Ho Yang ◽  
Seung-Pyo Eun ◽  
Dong-Ho Park ◽  
Hyo-Bum Kwak ◽  
Eunwook Chang
Keyword(s):  
Anterior Cruciate Ligament ◽  
Anterior Cruciate Ligament Reconstruction ◽  
Muscle Atrophy ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Muscle Thickness ◽  
Quadriceps Muscle ◽  
Circulating Biomarkers ◽  
Cruciate Ligament Reconstruction ◽  
Anterior Cruciate

Anterior cruciate ligament reconstruction (ACLR) frequently results in quadriceps atrophy. The present study investigated the effect of ACLR on the muscle thickness of the different constituent muscles of the quadriceps and circulating biomarkers related to muscle atrophy and hypertrophy. Fourteen subjects underwent anterior cruciate ligament reconstruction following injury. Quadriceps muscle thicknesses were measured using ultrasound, and circulating biomarkers in the blood were measured using enzyme-linked immunosorbent assays (ELISAs) at the preoperative visit (PRE) and at two postoperative visits (PO1, PO2) in the early stages post-surgery. Differences between time points were analyzed using one-way repeated measures analysis of variance (ANOVA) tests. The most important finding was that severe muscle atrophy occurred in the vastus intermedius (VI) after ACLR (PRE: 20.45 ± 6.82 mm, PO1: 16.05 ± 6.13 mm, PO2: 13.18 ± 4.7 mm, F = 59.0, p < 0.001). Furthermore, the myostatin level was slightly increased, and IGF-1 was significantly reduced throughout the entire period. Therefore, we suggest that inducing selective hypertrophy in the vastus intermedius during the process of rehabilitation would be important for athletes and individuals who engage in explosive sports. Moreover, inhibiting myostatin level increases and maintaining IGF-1 levels in the early phase of recovery after ACLR to prevent muscle atrophy may provide a pharmaceutical option for rehabilitation after anterior cruciate ligament injury.

scholarly journals Successful Outcome of Anterior Cruciate Ligament (ACL) Reconstruction by Hamstring Tendon for Anterior Cruciate Ligament Deficit Knee at a University Hospital: A Descriptive Cross-sectional Study

2021 ◽  
Vol 59 (244) ◽  
pp. 1283-1288
Author(s):  
Rohit Shrestha ◽  
Sushant Kumar Khadka ◽  
Sangharsha Thapa ◽  
Manasil Malla ◽  
Ashkal Basi ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Anterior Cruciate Ligament Reconstruction ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Hamstring Tendon ◽  
University Hospital ◽  
Successful Outcome ◽  
Cross Sectional ◽  
Cruciate Ligament Reconstruction ◽  
Anterior Cruciate

Introduction: Anterior cruciate ligament is a commonly injured and reconstructed ligament in the knee. Unlike in urban areas where sports activities and road accidents are common mechanisms of injuries, the semi-urban and rural population has a different mode of injuries, needs, and expectations. This study explores the prevalence of successful outcome of anterior cruciate ligament reconstruction in by hamstring tendon for anterior cruciate ligament deficit knee at a university hospital. Methods: A descriptive cross-sectional study was conducted at Dhulikhel Hospital, Kathmandu University Hospital from 2018 February to 2020 January among patients having anterior cruciate ligament injuries after ethical approval. Whole sampling technique was used. Functional outcome was assessed with Lysholm scale at the end of at least one year. Data was analysed using Statistical Package for Social Sciences version 11. Point estimate at 95% Confidence Interval was calculated, with frequency and percentage. Results: Out of 66 anterior cruciate ligament reconstruction, 35 (59%) cases had successful outcomes. Excellent outcomes were seen in 9 (15%) cases and 26 (44%) had good outcomes. The mean Lysholm score was 84. Conclusions: Anterior cruciate ligament injuries were seen in heterogeneous populations during their activities of daily living or recreational sports activities. Anatomic anterior cruciate ligamentreconstruction with hamstring grafts provided good functional outcomes, especially among the young population. Our findings are similar to current studies on anterior cruciate ligament-reconstruction.

scholarly journals Single-leg hop distance normalized to body height is associated with the return to sports after anterior cruciate ligament reconstruction

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Shunsuke Ohji ◽  
Junya Aizawa ◽  
Kenji Hirohata ◽  
Takehiro Ohmi ◽  
Sho Mitomo ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Body Height ◽  
Cross Sectional Study ◽  
Return To Sports ◽  
Sectional Study ◽  
Cross Sectional ◽  
Cruciate Ligament Reconstruction ◽  
Anterior Cruciate

Abstract Purpose To investigate the relationship between single-leg hop distance (SLHD), normalized body height, and return-to-sports (RTS) status after anterior cruciate ligament reconstruction (ACLR) and to identify the cut-off value for SLHD on the operated side. Methods Seventy-three patients after primary ACLR (median 13.5 months) participated in this cross-sectional study. Participants were divided into ‘‘Yes-RTS’’ (YRTS) or ‘‘No-RTS’’ (NRTS) groups based on a self-reported questionnaire. SLHD was measured, and the limb symmetry index (LSI) and SLHD (%body height) were calculated. A minimum p-value approach was used to calculate the SLHD cut-off points (%body height) on the operated side that were strongly associated with the RTS status. Logistic regression analysis was used to analyse the association between RTS status and SLHD cut-off point (%body height). Isokinetic strength and Tampa scale for kinesiophobia (TSK) were measured as covariates. Results Among 73 patients, 43 (59%) were assigned to the YRTS and 30 (41%) to the NRTS group. The 70% body height cut-off point for SLHD on the operated side was most strongly associated with RTS status. In a logistic regression analysis including other covariates, SLHD (%body height) < 70% and TSK were negatively associated with RTS status. Except for two participants, the LSI of the SLHD exceeded 90% and there was no significant association between the LSI of the SLHD and RTS status. Conclusion Even after improvement in the LSI of the SLHD, planning rehabilitation with the goal of achieving SLHD over 70% body height may be important for supporting RTS after ACLR. Level of evidence Cross-sectional study, Level IV

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