The in vivo relationship between anterior neutral tibial position and loss of knee extension after transtibial ACL reconstruction

Scanlan, Sean F.; Donahue, Joseph; Andriacchi, Thomas P.

doi:10.1016/j.knee.2013.06.003

Cited by 18 publications

(13 citation statements)

References 65 publications

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“…The heel-strike knee flexion angle has been proposed as a mechanical marker of OA risk [7]. A more flexed posture, relative to controls, has been shown in trans-tibial-ACLR (at risk) [26], older asymptomatic (at risk), older early OA, and older end-stage OA groups [8]. Related to this change in knee flexion, but in contrast to what would be expected based on the proposed ‘screw-home’ mechanisms, a deviation in the tibial rotation at heel-strike and in early stance was not represented by PC 5 .…”

Section: Discussionmentioning

confidence: 99%

The Nature of Age-Related Differences in Knee Function during Walking: Implication for the Development of Knee Osteoarthritis

Boyer

Andriacchi

2016

PLoS ONE

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BackgroundChanges in knee kinematics have been identified in the early stages of osteoarthritis (OA). However, there is a paucity of information on the nature of kinematic change that occur with aging prior to the development of OA, This study applied a robust statistical method (Principal Component Analysis) to test the hypothesis that coupling between primary (flexion) and secondary (anterior-posterior translation, internal-external rotation) joint motions in walking would differ for age groupings of healthy subjects.MethodsSeventy-four healthy participants divided into three groups with mean ages of 24 ± 2.3 years (younger), 48 ± 4.7years (middle-age) and 64 ± 2.4 years (older) were examined. Principal Component Analysis was used to characterize and statistically compare the patterns of knee joint movement and their relationships in walking.ResultsThere were significant differences between the younger group and both the middle-age and older groups in the knee frontal plane angle and the coupling between knee flexion (PC1, p≤0.04) and the relative magnitudes of secondary plane motions in early and late stance (PC3, p<0.01). Two additional principal components (PC2, p = 0.03 and PC5, p<0.01) described differences in early stance knee flexion and relationship with secondary plane motion through-out stance for the older compared with middle-age group.ConclusionsIt appears there are changes in knee kinematics that occur with aging. The kinematic differences were identified for middle-aged as well as older adults suggesting midlife changes in neuromuscular physiology or behavior may have important consequences. These kinematic measures offer the potential to identify early markers for the risk of developing knee OA with aging.

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Section: Discussionmentioning

confidence: 99%

The Nature of Age-Related Differences in Knee Function during Walking: Implication for the Development of Knee Osteoarthritis

Boyer

Andriacchi

2016

PLoS ONE

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“…Andriacchi et al suggested that this kinematic change results in greater loads on previously unloaded regions of articular cartilage that will initiate biological changes leading to osteoarthritis. In contrast, ACL reconstruction is typically aimed at restoring knee kinematics although this is not always achieved . However, it is possible that in addition to the—compared to conservative treatment—smaller kinematic changes, the bone trauma caused by the surgical reconstruction leads to changes in bone metabolism manifested as reduced bone mineral density not only close to but also far from the surgical site …”

Section: Discussionmentioning

confidence: 99%

Comparison of volumetric bone mineral density in the operated and contralateral knee after anterior cruciate ligament and reconstruction: A 1‐year follow‐up study using peripheral quantitative computed tomography

Mündermann

Payer

Felmet

et al. 2015

Journal Orthopaedic Research

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The purpose of this study was to quantify changes in volumetric bone mineral density (vBMD) in the tibial plateau of the operated and contralateral leg measured using peripheral quantitative computed tomography (pQCT) before and 3, 6, and 12 months after anterior cruciate ligament (ACL) reconstruction. The ACL was reconstructed with a hamstring tendon autograft using press-fit fixation. pQCT measurements of the proximal tibia were obtained in 61 patients after ACL reconstruction, and total, cortical, and trabecular vBMD were calculated. vBMD in the operated leg decreased from baseline to 3 months (À12% [total], À11% [cortical], and À12.6% [trabecular]; p < 0.001) and remained below baseline for 12 months after surgery (6 months: À9.5%, À9.4%, and À9.6%, p < 0.001; 12 months: À8%, À5%, and À11%, p < 0.001). vBMD in the contralateral leg was slightly reduced only 6 months after surgery. Including age and sex as covariates into the analysis did not affect the results. ACL reconstruction contributed to loss in bone mineral density within the first year after surgery. The role of factors such as time of weight-bearing, joint mechanics, post-traumatic inflammatory reactions, or genetic predisposition in modulating the development of posttraumatic knee osteoarthritis after ACL injury should be further elucidated. ß

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“…1). Scanlan et al used 3D surface modeling from MRI segmentations to estimate the anterior translation of tibia and correlate this with loss of extension after ACL reconstruction using the transtibial technique [40]. Lansdown et al introduced a method of measuring tibial translation and rotation using a semi-automatic segmentation method with high reliability [42].…”

Section: Magnetic Resonance Imagingmentioning

confidence: 99%

Functional knee assessment with advanced imaging

Amano

Benjamin

2016

Curr Rev Musculoskelet Med

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The purpose of anterior cruciate ligament (ACL) reconstruction is to restore the native stability of the knee joint and to prevent further injury to meniscus and cartilage, yet studies have suggested that joint laxity remains prevalent in varying degrees after ACL reconstruction. Imaging can provide measurements of translational and rotational motions of the tibiofemoral joint that may be too small to detect in routine physical examinations. Various imaging modalities, including fluoroscopy, computed tomography (CT), and magnetic resonance imaging (MRI), have emerged as powerful methods in measuring the minute details involved in joint biomechanics. While each technique has its own strengths and limitations, they have all enhanced our understanding of the knee joint under various stresses and movements. Acquiring the knowledge of the complex and dynamic motions of the knee after surgery would help lead to improved surgical techniques and better patient outcomes.

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The in vivo relationship between anterior neutral tibial position and loss of knee extension after transtibial ACL reconstruction

Cited by 18 publications

References 65 publications

The Nature of Age-Related Differences in Knee Function during Walking: Implication for the Development of Knee Osteoarthritis

The Nature of Age-Related Differences in Knee Function during Walking: Implication for the Development of Knee Osteoarthritis

Comparison of volumetric bone mineral density in the operated and contralateral knee after anterior cruciate ligament and reconstruction: A 1‐year follow‐up study using peripheral quantitative computed tomography

Functional knee assessment with advanced imaging

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