Anatomical ACL Reconstruction can Restore the Natural Knee Kinematics than Isometric ACL Reconstruction During the Stance Phase of Walking

Koo, Young-Jun; Jung, Yihwan; Seon, Jong Keun; Koo, Seungbum

doi:10.1007/s12541-020-00319-7

Cited by 3 publications

(4 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, they did not report the alteration of contact forces, which is closely related to the development of osteoarthritis. A few works of literature investigated the knee contact mechanics involving the function of menisci [ 13 ] and ACL reconstruction [ 11 , 12 ] during walking by using MS modeling, but none have mentioned the biomechanical characteristics while jogging. As far as we know, this is the first study to estimate the kinetics of ACLD knees with concomitant medial or/and lateral meniscal tears during jogging by using the multi-body dynamics model.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, many studies have performed multi-body dynamics modeling related to ACLD patients by using the musculoskeletal (MS) model and motion analysis system to estimate the joint and muscle forces. For instance, simulations were developed to predict ACL graft attachment locations during reconstruction [ 11 ], estimate knee contact mechanics and secondary kinematics with or without menisci [ 12 ], and evaluate the tibiofemoral joint forces of gait after ACL reconstruction [ 13 ]. Comparatively, there is little data on the evaluation of the kinetics of combined ACLD and meniscal injuries by using the MS model during jogging.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Identification of Kinetic Abnormalities in Male Patients after Anterior Cruciate Ligament Deficiency Combined with Meniscal Injury: A Musculoskeletal Model Study of Lower Limbs during Jogging

Ren

Liu

et al. 2022

Bioengineering

View full text Add to dashboard Cite

There is little known about kinetic changes in anterior cruciate ligament deficiency (ACLD) combined with meniscal tears during jogging. Therefore, 29 male patients with injured ACLs and 15 healthy male volunteers were recruited for this study to investigate kinetic abnormalities in male patients after ACL deficiency combined with a meniscal injury during jogging. Based on experimental data measured by an optical tracking system, a subject-specific musculoskeletal model was employed to estimate the tibiofemoral joint kinetics during jogging. Between-limb and interpatient differences were compared by the analysis of variance. The results showed that decreased knee joint forces and moments of both legs in ACLD patients were detected during the stance phase compared to the control group. Meanwhile, compared with ACLD knees, significantly fewer contact forces and flexion moments in ACLD combined with lateral and medial meniscal injury groups were found at the mid-stance, and ACLD with medial meniscal injury group showed a lower axial moment in the loading response (p < 0.05). In conclusion, ACLD knees exhibit reduced tibiofemoral joint forces and moments during jogging when compared with control knees. A combination of meniscus injuries in the ACLD-affected side exhibited abnormal kinetic alterations at the loading response and mid-stance phase.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Identification of Kinetic Abnormalities in Male Patients after Anterior Cruciate Ligament Deficiency Combined with Meniscal Injury: A Musculoskeletal Model Study of Lower Limbs during Jogging

Ren

Liu

et al. 2022

Bioengineering

View full text Add to dashboard Cite

show abstract

“…1). Since an elongation of more than 2 mm of the ACL graft in the full range of knee motion is known to be undesirable [2], a graft length change of less than 2 mm was defined as nearly isometric, and more than 2 mm was defined as non‐isometric in the present study [2, 22].…”

Section: Methodsmentioning

confidence: 99%

“…As an anatomical femoral tunnel placement during anterior cruciate ligament (ACL) reconstruction was known to reproduce relatively normal knee kinematics and restore rotational laxity [3, 10, 22, 26, 31, 38, 42], the trend has shifted from using the transtibial technique to the transportal (anteromedial portal) or outside‐in reconstruction technique [18, 46, 48]. However, for anatomical ACL reconstruction, the concept of an isometry might still be a concern for most orthopedic surgeons.…”

Section: Introductionmentioning

confidence: 99%

Graft isometry during anatomical ACL reconstruction has little effect on surgical outcomes

Moon

Choi

Yoo

et al. 2021

Knee Surg Sports Traumatol Arthrosc

View full text Add to dashboard Cite

Purpose To investigate the surgical outcomes of anatomical anterior cruciate ligament (ACL) reconstruction according to the graft isometry measured during surgery. Methods Electrical medical records of patients who underwent an arthroscopic ACL reconstruction through the transportal technique using hamstring tendon autograft between 2012 and 2016 were retrospectively reviewed. The patients were classiied into two groups based on the graft length change throughout the knee range of motion measured just before graft ixation (Group 1, graft length change ≤ 2 mm; Group 2, graft length change > 2 mm). Comparative analyses, including a noninferiority trial, were performed regarding the clinical scores, knee laxity, and radiographic parameters between the groups. Results A total of 67 patients were included in the study. The total change in the length of ACL graft throughout the knee range of motion was 1.4 ± 0.4 mm in Group 1 (range, 0.2-2.0 mm), and 3.0 ± 0.7 mm in Group 2 (range, 2.2-5.0 mm). Group 1 showed a relatively high (proximal) femoral tunnel and shallow (anterior) tibial tunnel compared to Group 2 (P < 0.001 and P = 0.028, respectively), but there were no apparent diferences in the macroscopic view. There were no statistically signiicant diferences in the clinical outcomes between groups at 2 years after surgery, which satisied the non-inferiority criterion of Group 1 in terms of clinical scores and knee laxity compared to Group 2. Conclusion The surgical outcomes of anatomical ACL reconstruction in patients with non-isometric ACL graft were not inferior in terms of clinical scores and knee laxity, compared to those with nearly-isometric ACL graft. The graft tunnel placement in the isometric position during anatomical ACL reconstruction, which is technically challenging in the clinical setting, is not a crucial factor in terms of clinical outcomes. Level of evidence Level IV.

show abstract

Influences of Partial Anterior Cruciate Ligament Injury on Anterior Cruciate Ligament Tensional Force and Kinematic Stability During Walking

Koo

Seon

Lee

et al. 2022

Journal of Biomechanical Engineering

View full text Add to dashboard Cite

Injuries in the anterior cruciate ligament (ACL), including partial tear and lengthening of the ACL, change the dynamic function of the knee. However, there is a lack of information on the effect of ACL partial tear on knee kinematics during walking. This study aimed to investigate the effects of different levels of ACL injuries on the knee stability and ACL tensional force to identify the critical injury level. Motion data of five normal subjects were acquired along with the ground reaction force. A knee model with 14 ligaments was developed using cadaveric specimen data. The initial length and stiffness of the ACL were changed to develop ACL-injured knee models. Musculoskeletal simulations of the knee models were performed using the measured gait data. The average tibial anterior translation increased significantly by 2.6 ± 0.7 mm when the ACL stiffness decreased to 25% of its original stiffness. The average tibial anterior translation increased significantly by 2.6 ± 0.3 mm at an increase in initial length of 10%. The knee with partial ACL tear had a non-linear decrease in ACL forces owing to the increase in the level of ACL injury, while the knee with ACL lengthening had linear decreased ACL forces. The partial tear of the ACL caused translational instability, while the complete tear caused both rotational and translational instabilities during the musculoskeletal walking simulation. This study presents the effects of partial ACL injuries on joint kinematics and ACL tensional force during the dynamic motion of walking.

show abstract

Anatomical ACL Reconstruction can Restore the Natural Knee Kinematics than Isometric ACL Reconstruction During the Stance Phase of Walking

Cited by 3 publications

References 37 publications

Identification of Kinetic Abnormalities in Male Patients after Anterior Cruciate Ligament Deficiency Combined with Meniscal Injury: A Musculoskeletal Model Study of Lower Limbs during Jogging

Identification of Kinetic Abnormalities in Male Patients after Anterior Cruciate Ligament Deficiency Combined with Meniscal Injury: A Musculoskeletal Model Study of Lower Limbs during Jogging

Graft isometry during anatomical ACL reconstruction has little effect on surgical outcomes

Influences of Partial Anterior Cruciate Ligament Injury on Anterior Cruciate Ligament Tensional Force and Kinematic Stability During Walking

Contact Info

Product

Resources

About