Medial Subluxation of the Tibia After Anterior Cruciate Ligament Rupture as Revealed by Standing Radiographs and Comparison With a Cadaveric Model

Thein, Ran; Boorman-Padgett, James; Khamaisy, Saker; Zuiderbaan, Hendrik A.; Wickiewicz, Thomas L.; Imhauser, Carl W.; Pearle, Andrew D.

doi:10.1177/0363546515608473

Cited by 13 publications

(11 citation statements)

References 18 publications

(39 reference statements)

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“…Increased contact stresses in an unstable ACL-deficient knee and, subsequently, the possibility for later degenerative changes should not be underestimated. 18,19 Therefore, patients undergoing rerevision procedures should be appropriately counseled for the increased possibility of these degenerative changes.…”

Section: Discussionmentioning

confidence: 99%

Outcomes and Risk Factors of Rerevision Anterior Cruciate Ligament Reconstruction: A Systematic Review

Liechti

Chahla

Dean

et al. 2016

Arthroscopy: The Journal of Arthroscopic & Related Surgery

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Section: Discussionmentioning

confidence: 99%

Outcomes and Risk Factors of Rerevision Anterior Cruciate Ligament Reconstruction: A Systematic Review

Liechti

Chahla

Dean

et al. 2016

Arthroscopy: The Journal of Arthroscopic & Related Surgery

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“…Similarly, our prior work that was based on a larger sample size used the same MRI‐based measurement approach and revealed both anterior and medial positioning of the tibia relative to the femur for ACL‐injured knees in comparison to the contralateral normal side with no side‐to‐side differences in controls with normal knees . Likewise, prior work using a weightbearing radiographic technique demonstrated similar magnitudes of anterior and medial positioning of the tibia relative to the femur following ACL injury with no side‐to‐side differences in control subjects . Abnormal anterior and medial positioning of the tibia relative to the femur represent concerns as they may be related to degenerative changes about the knee as indicated by Siriwanarangsun et al…”

Section: Discussionmentioning

confidence: 68%

“…1,41,42 Similarly, our prior work that was based on a larger sample size used the same MRI-based measurement approach and revealed both anterior and medial positioning of the tibia relative to the femur for ACL-injured knees in comparison to the contralateral normal side with no side-to-side differences in controls with normal knees. 9 Likewise, prior work using a weightbearing radiographic technique demonstrated similar magnitudes of anterior 1 and medial 43 positioning of the tibia relative to the femur following ACL injury with no side-to-side differences in control subjects. 43 Abnormal anterior and medial positioning of the tibia relative to the femur represent concerns as they may be related to degenerative changes about the knee as indicated by Siriwanarangsun et al 44 Strengths of the current study include evaluation of subjects soon after injury and data analyses based on three-dimensional bone-based coordinate systems as this allowed us to establish the complete 6 degree-offreedom position of the tibia relative to the femur during MRI acquisition and make reliable measures of the articular structures.…”

mentioning

confidence: 87%

“…9 Likewise, prior work using a weightbearing radiographic technique demonstrated similar magnitudes of anterior 1 and medial 43 positioning of the tibia relative to the femur following ACL injury with no side-to-side differences in control subjects. 43 Abnormal anterior and medial positioning of the tibia relative to the femur represent concerns as they may be related to degenerative changes about the knee as indicated by Siriwanarangsun et al 44 Strengths of the current study include evaluation of subjects soon after injury and data analyses based on three-dimensional bone-based coordinate systems as this allowed us to establish the complete 6 degree-offreedom position of the tibia relative to the femur during MRI acquisition and make reliable measures of the articular structures. The cases and controls had similar body composition ( Table 2).…”

mentioning

confidence: 87%

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Combined Injury to the ACL and Lateral Meniscus Alters the Geometry of Articular Cartilage and Meniscus Soon After Initial Trauma

Beynnon

Fiorentino

Gardner‐Morse

et al. 2019

Journal Orthopaedic Research

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Combined injury to the anterior cruciate ligament (ACL) and meniscus is associated with earlier onset and increased rates of post‐traumatic osteoarthritis compared with isolated ACL injury. However, little is known about the initial changes in joint structure associated with these different types of trauma. We hypothesized that trauma to the ACL and lateral meniscus has an immediate effect on morphometry of the articular cartilage and meniscus about the entire tibial plateau that is more pronounced than an ACL tear without meniscus injury. Subjects underwent magnetic resonance imaging scanning soon after injury and prior to surgery. Those that suffered injury to the ACL and lateral meniscus underwent changes in the lateral compartment (increases in the posterior–inferior directed slopes of the articular cartilage surface, and the wedge angle of the posterior horn of the meniscus) and medial compartment (the cartilage‐to‐bone height decreased in the region located under the posterior horn of the meniscus, and the thickness of cartilage increased and decreased in the mid and posterior regions of the plateau, respectively). Subjects that suffered an isolated ACL tear did not undergo the same magnitude of change to these articular structures. A majority of the changes in morphometry occurred in the lateral compartment of the knee; however, change in the medial compartment of the knee with a normal appearing meniscus also occurred. Statement of clinical significance: Knee injuries that involve combined trauma to the ACL and meniscus directly affect both compartments of the knee, even if the meniscus and articular cartilage appears normal upon arthroscopic examination. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:759‐767, 2020

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“…These results are important because altered joint kinematics potentially elicit changes in cartilage loading, and could predispose the knee to degenerative changes . In ACL deficient knees, cartilage contact in the medial compartment is shifted towards the medial tibial spine, a region where degeneration is observed in patients . Therefore, we analyzed cartilage thickness in the corresponding region on the femur to quantify the effects of graft placement on cartilage thickness in this region.…”

Section: In Vivo Measurement Of Acl Graft Placement On the Femurmentioning

confidence: 99%

Effects of ACL graft placement on in vivo knee function and cartilage thickness distributions

DeFrate

2017

J. Orthop. Res.

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Injuries to the anterior cruciate ligament (ACL) frequently lead to early-onset osteoarthritis. Despite advancement in surgical techniques, ACL reconstruction has a limited ability to prevent these degenerative changes. While previous studies have investigated knee function after ACL reconstruction, in vivo investigations of the effects of graft placement on in vivo joint function and cartilage health are limited. This review presents a series of studies that used novel imaging and 3D modeling techniques to determine the in vivo placement of the ACL graft on the femur using two different ACL reconstruction techniques. These techniques resulted in two distinct graft placement groups: one where the ACL was placed anatomically near the center of the native ACL footprint and another where the graft was placed anteroproximally on the femur, centered outside the ACL footprint. We quantified the effects of graft placement on graft deformation during in vivo loading and how these variables affected knee motion. Finally, we quantified whether femoral placement of the graft affected cartilage thickness. Our results demonstrate that achieving anatomic graft placement on the femur is critical to restoring native ACL function and normal knee kinematics. Knees with grafts that more closely restored normal ACL function, and thus knee motion, experienced less focal cartilage thinning than did those that experienced abnormal knee motion. These results suggest that achieving anatomic graft placement is a critical factor in restoring normal knee motion and potentially slowing the development of degenerative changes after ACL reconstruction.

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Medial Subluxation of the Tibia After Anterior Cruciate Ligament Rupture as Revealed by Standing Radiographs and Comparison With a Cadaveric Model

Cited by 13 publications

References 18 publications

Outcomes and Risk Factors of Rerevision Anterior Cruciate Ligament Reconstruction: A Systematic Review

Outcomes and Risk Factors of Rerevision Anterior Cruciate Ligament Reconstruction: A Systematic Review

Combined Injury to the ACL and Lateral Meniscus Alters the Geometry of Articular Cartilage and Meniscus Soon After Initial Trauma

Effects of ACL graft placement on in vivo knee function and cartilage thickness distributions

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