Analysis of cyclops lesions after different anterior cruciate ligament reconstructions: a comparison of the single-bundle and remnant bundle preservation techniques

Cha, Jihoon; Choi, Sang‐Hee; Kwon, Jong Won; Lee, Sang-Hak; Ahn, Jin Hwan

doi:10.1007/s00256-011-1347-4

Cited by 39 publications

(42 citation statements)

References 22 publications

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“…Previous studies have demonstrated a good sensitivity, specificity, and accuracy of MRI in revealing cyclops lesions (sensitivity 85.0%, specificity 84.6%, and accuracy 84.8%) [24,25]. In all mentioned previous studies the prevalence and clinical relevance of cyclops lesions have only been assessed in subjects which presented with severe loss ofknee extension at follow-up.…”

Section: Introductionmentioning

confidence: 99%

Cyclops lesions detected by MRI are frequent findings after ACL surgical reconstruction but do not impact clinical outcome over 2 years

et al. 2016

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Section: Introductionmentioning

confidence: 99%

Cyclops lesions detected by MRI are frequent findings after ACL surgical reconstruction but do not impact clinical outcome over 2 years

et al. 2016

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“…An increased incidence of cyclops lesions was not observed (Cha et al 2012). However, long-term results are missing and clinical studies comparing the remnant preservation technique with ACL reconstruction without remnant preservation are lacking.…”

Section: Remnant Augmentationmentioning

confidence: 92%

“…An advantage of an isolated reconstruction of the AM or PL bundle might be preservation of proprioceptive elements within the remnant (Cha et al 2012;Kazusa et al 2013). Moreover, in many cases, a gracilis tendon graft is strong enough to reconstruct one torn bundle.…”

Section: Isolated Reconstruction Of a Torn Bundlementioning

confidence: 98%

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Different Techniques of ACL Reconstruction: Guidelines

Petersen¹

2014

Sports Injuries

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Anatomical ACL replacement with medial portal drilling and footprint reconstruction is the technique of choice for patients with symptomatic instability after an ACL rupture (non-coper). The gold standard is the anatomic single-bundle reconstruction with mid-position placement of the tunnel. For patients with a large attachment area, a double-bundle technique could be indicated. Graft options for anatomical ACL reconstruction are the hamstrings, patellar tendon, or the quadriceps tendon with or without bone blocks. Graft choice depends on the individual demands and needs of the patient. A large group of patients can be treated successfully by all three autografts or by nonirradiated allografts. Some subgroups, however, may profit from a specific graft choice. Age, gender, activity, sports, profession, and religious habits should be considered.

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“…Cyclops lesions were defined as soft tissue masses with a convex anterior border located in the intercondylar notch, characterized by varying signal intensities on intermediate‐weighted images (3D FSE), as previously described . Previous studies have demonstrated a good sensitivity, specificity, and accuracy of MRI in revealing cyclops lesions (sensitivity 85.0%, specificity 84.6%, and accuracy 84.8%) . In addition, a diameter of 5 mm in each plane was used as the minimum required size to avoid false‐positive cases …”

Section: Methodsmentioning

confidence: 99%

Cyclops lesions are associated with altered gait patterns and medial knee joint cartilage degeneration at 1 year after ACL‐reconstruction

Samaan

Facchetti

Pedoia

et al. 2017

Journal Orthopaedic Research

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In this exploratory study, gait analysis and quantitative MRI (QMRI) were used to assess biomechanical differences in patients that present with cyclops lesions at 12 months after ACL-reconstruction (ACLR). Thirty ACLR patients without and 10 ACLR patients with cyclops lesions underwent 3T MR T1ρ mapping of the reconstructed knee joint prior to ACLR and at 12 months after ACLR, as well as a gait assessment during a fixed walking speed at 12 months after ACLR. Both external sagittal and frontal plane knee joint moments and joint moment impulses were calculated and assessed throughout the stance phase of gait. ACLR patients with cyclops lesions demonstrated a significantly greater (34% larger, p=0.03) first peak knee flexion moment (KFM) and KFM impulse (42% larger, p=0.05), compared to those without cyclops lesions, which may suggest an increased load during the loading response phase of gait. There were no differences (p>0.05) in knee extension or adduction joint moments or moment impulses. ACLR patients with cyclops lesions demonstrated a significantly increased change in T1ρ (ΔT1ρ = 4.7ms, p=0.03), over 12 months, within the central medial tibia. The results of the study suggest that ACLR patients with cyclops lesions demonstrate altered sagittal plane loading patterns which may be related to an increased rate of medial tibiofemoral cartilage degeneration at 12 months after ACLR. The first peak external KFM may be an important target for intervention programs in ACLR patients with cyclops lesions in order to possibly slow the onset or progression of medial tibiofemoral cartilage degeneration.

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Analysis of cyclops lesions after different anterior cruciate ligament reconstructions: a comparison of the single-bundle and remnant bundle preservation techniques

Abstract: The prevalence of a cyclops lesion was similar in both groups.

Cited by 39 publications

References 22 publications

Cyclops lesions detected by MRI are frequent findings after ACL surgical reconstruction but do not impact clinical outcome over 2 years

Cyclops lesions detected by MRI are frequent findings after ACL surgical reconstruction but do not impact clinical outcome over 2 years

Different Techniques of ACL Reconstruction: Guidelines

Cyclops lesions are associated with altered gait patterns and medial knee joint cartilage degeneration at 1 year after ACL‐reconstruction

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