Computed tomography (CT), X-ray, and MRI evaluation of two anterolateral knee reconstruction techniques: lateral extra-articular tenodesis (LET) and the anterolateral ligament (ALL) reconstruction

Lôbo, Carlos Felipe Teixeira; Helito, Paulo Victor Partezani; Bordalo-Rodrigues, Marcelo; Helito, Camilo Partezani

doi:10.1007/s00256-020-03402-2

Cited by 7 publications

(5 citation statements)

References 72 publications

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“…The coronal plane sequences can also help to identify the meniscal and tibial insertions of the ligament. 26 , 38 , 83 Lôbo et al 44 described the ALL as having 3 discrete portions originating from the LFE, meniscus, and tibia. Multiple studies have reported variation in identification of the femoral attachment on MRI scans, with debate centering around the presence or absence of ALL attachment to the lateral meniscus.…”

Section: Overviewmentioning

confidence: 99%

“…Care should be taken to follow the graft through multiple slices on the coronal plane, as the graft courses obliquely. 44 At the Gerdy tubercle, there will be no fixation device. However, femoral fixation via interference screws, suture anchors, or staples proximal and posterior to the LFE should be visualized.…”

Section: Overviewmentioning

confidence: 99%

“… 12 , 47 Additionally, intra-articular malposition of the fixation devices may lead to unstable fixation. 44 This complication has thus far been poorly characterized in the literature.…”

Section: Complications and Associated Imaging Findingsmentioning

confidence: 99%

“…9 The popliteus tendon passes through a hiatus in the coronary ligament to attach at the femur. The ITB has been described as having superficial, middle, deep, and capsulo-osseous k References 3,10,24,26,28,38,41,44,67,79,83,86. § layers, which connect layers 1 and 3 as well as the distal femur in the proximal and posterior part of the lateral knee (Figure 1). 10,12 Kaplan fibers are connections between the ITB and distal lateral femoral condyle.…”

Section: Overview Anatomy Of the Lateral Kneementioning

confidence: 99%

“…[21][22][23]59,68 In the past decade, magnetic resonance imaging (MRI) evaluation of the normal and injured ALL has been thoroughly characterized in the literature. 20,44,57,78,79 A recent review by Lôbo et al 44 furthered this body of research by describing the imaging evaluation of LET and ALL reconstruction techniques, along with the associated postoperative MRI findings after ALL reconstruction.…”

mentioning

confidence: 99%

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Imaging Findings of Complications After Lateral Extra-Articular Tenodesis of the Knee: A Current Concepts Review

Marshall

Silva

Goldenberg

et al. 2022

Orthopaedic Journal of Sports Medicine

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Background: Despite successful anterior cruciate ligament (ACL) reconstruction, many patients continue to experience persistent anterolateral rotatory instability. Lateral extra-articular tenodesis (LET) is used to address this instability by harvesting a portion of the iliotibial band, passing it underneath the fibular collateral ligament, and attaching it just proximal and posterior to the lateral femoral epicondyle. Based on the most recent clinical evidence, the addition of LET to ACL reconstruction improves clinical outcomes, which has led to an increase in the use of this technique. Purpose: To provide an overview of the postoperative complications of the LET procedure and their associated imaging findings, with a focus on magnetic resonance imaging (MRI). Study Design: Narrative review. Methods: In this scoping review, the authors reviewed available radiographic, computed tomography, and MRI scans of patients who experienced postoperative complications after ACL reconstruction with LET, in which the complication was determined to be from the LET procedure. Images were reviewed and subsequently described by an on-staff musculoskeletal radiologist. Results: The authors found 9 different complications associated with LET: graft failure, hematoma, infection, chronic pain, tunnel convergence, fixation device migration, muscular hernia, peroneal nerve palsy, and knee stiffness. They supplemented these findings with radiographic evidence from 6 patients. Conclusion: As extra-articular reconstruction techniques including LET become more popular among orthopaedic surgeons, it is important that radiologists and surgeons be adept at recognizing the normal imaging findings of LET and associated complications.

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Section: Overviewmentioning

confidence: 99%

Section: Overviewmentioning

confidence: 99%

“… 12 , 47 Additionally, intra-articular malposition of the fixation devices may lead to unstable fixation. 44 This complication has thus far been poorly characterized in the literature.…”

Section: Complications and Associated Imaging Findingsmentioning

confidence: 99%