Anatomic Location and Morphology of Symptomatic, Operatively Treated Osteochondral Lesions of the Talus

Orr, Justin D.; Dutton, Jason R.; Fowler, Justin

doi:10.3113/fai.2012.1051

Cited by 49 publications

(28 citation statements)

References 30 publications

(58 reference statements)

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“…Some previous authors have reported more distributions of medial lesions compared with lateral ones [12,19,20,24]. On the contrary, Justin D. Orr et al [25] reported that operatively treated OLTs were mainly located in the lateral zones, based on 68 cases all under 60 years old. A systemic review [26] of 32 studies reported that 44 % of lesions were lateral and 56 % were medial.…”

Section: Discussionmentioning

confidence: 93%

Characteristics of Osteochondral Lesions of the Talus in Different Age Groups

Cao

Huang

et al. 2020

Int J Sports Med

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We analyzed the characteristics of 112 consecutive patients who were operatively treated for osteochondral lesions of the talus from August 2014 to April 2019 in our hospital. The patients were divided into three age groups: young-adult (<40 years), middle-age (40–60 years) and old-age (>60 years). The basic clinical features, localization and size of the lesions, Hepple stage, and surgical procedures were compared among groups. Several significant differences were found on the characteristics of osteochondral lesions of the talus among age groups. There were more female patients in the old-age group (p<0.01), and old patients had a longer duration of symptoms (p<0.05). The OLTs in middle- and old-age patients were mostly located in the medial part of the talus with larger depth (p<0.01). Hepple stage 5, the cystic type, was very common in the old-age group (p<0.01). With regard to surgical procedures, more osteochondral autograft transplantations were applied in the old-age group (p<0.01). Female and deep medial talar subchondral cyst is the typical characteristics of patients over 60 years old. Age is an important factor that must be considered when choosing surgery procedure for patients with osteochondral lesions of the talus.

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Section: Discussionmentioning

confidence: 93%

Characteristics of Osteochondral Lesions of the Talus in Different Age Groups

Cao

Huang

et al. 2020

Int J Sports Med

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“…Analysing the results of variations in the defect size, it seems that positive defects, which may occur in the stage IV lesions ( i.e. , detached and displaced osteochondral fragment) [ 23 ], made noticeable alterations to the output signal, whereas, negative defects ( Figure 2 ) created relatively small changes ( Figures 8 and 9 ). Increasing the width for negative talus defects did not seem to vary the output signal.…”

Section: Discussionmentioning

confidence: 99%

“…In addition to the defects with negative depth values, positive defects ( Figure 2 ), which may occur in the stage IV lesions ( i.e. , detached and displaced osteochondral fragment) [ 23 ] were considered. Throughout the simulations, the size of temporal and spatial domain, the grid size, the boundary conditions, and the material properties were kept identical to the reference model.…”

Section: Methodsmentioning

confidence: 99%

A Novel Ultrasound Technique for Detection of Osteochondral Defects in the Ankle Joint: A Parametric and Feasibility Study

Sarkalkan

Loeve

Dongen

et al. 2014

Sensors

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(Osteo)chondral defects (OCDs) in the ankle are currently diagnosed with modalities that are not convenient to use in long-term follow-ups. Ultrasound (US) imaging, which is a cost-effective and non-invasive alternative, has limited ability to discriminate OCDs. We aim to develop a new diagnostic technique based on US wave propagation through the ankle joint. The presence of OCDs is identified when a US signal deviates from a reference signal associated with the healthy joint. The feasibility of the proposed technique is studied using experimentally-validated 2D finite-difference time-domain models of the ankle joint. The normalized maximum cross correlation of experiments and simulation was 0.97. Effects of variables relevant to the ankle joint, US transducers and OCDs were evaluated. Variations in joint space width and transducer orientation made noticeable alterations to the reference signal: normalized root mean square error ranged from 6.29% to 65.25% and from 19.59% to 8064.2%, respectively. The results suggest that the new technique could be used for detection of OCDs, if the effects of other parameters (i.e., parameters related to the ankle joint and US transducers) can be reduced.

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“…OLT dimensions (anteroposterior and transverse diameters and depth) based on T1-weighted MRI were determined in accordance with previously described techniques. 18,19 MRI assessments, including localization, quantification of measurements, and staging classification, were performed by a board-certified orthopaedic surgeon not involved in the operations. Preoperative computed tomography (CT) imaging ( Figure 1C) was performed in all 8 cases to further assess lesion morphology.…”

Section: Methodsmentioning

confidence: 99%