Normvarianten und Pitfalls rund um den Ellenbogen

Müller, Dirk; Schäffeler, C.

doi:10.1007/s00117-018-0457-6

Cited by 5 publications

(3 citation statements)

References 35 publications

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“…Based on the findings of this study, a multipartite medial epicondyle must be considered traumatic in origin, whereas a multipartite lateral epicondyle can be both traumatic and an atraumatic developmental variant. The detection and appropriate treatment of medial epicondylar fractures, mostly caused by a posterior elbow luxation or valgus trauma [ 12 ], and the distinction between exclusively epicondylar fractures and unstable fractures involving the medial condyle, are important for a good functional outcome and reduction of posttraumatic complications, such as stiffness, instability, deformity, symptomatic nonunion, articular incarceration of the fracture fragment, or ulnar nerve injury [ 15 , 16 ]. The detection of medial epicondylar fractures in radiographs may be difficult due to anatomic reasons, as the medial epicondyle is located outside the joint capsule and a fracture limited to this epicondyle will usually not result in a positive fat pad sign [ 13 ].…”

Section: Discussionmentioning

confidence: 99%

Not all that looks fractured is broken—multipartite humeral epicondyles in children

et al. 2022

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Objective Multipartite epicondyles may mimic fractures in the setting of pediatric elbow trauma. This study examines the prevalence of multipartite epicondyles during skeletal development and their association with pediatric elbow fractures. Materials and methods In this retrospective analysis, 4282 elbow radiographs of 1265 elbows of 1210 patients aged 0–17 years were reviewed. The radiographs were analyzed by two radiologists in consensus reading, and the number of visible portions of the medial and lateral epicondyles was noted. For elbows in which epicondylar ossification was not yet visible, the epicondyles were already fused with the humerus or could not be sufficiently evaluated due to projection issues or because osteosynthesis material was excluded. In total, 187 elbows were included for the lateral and 715 for the medial epicondyle analyses. Results No multipartite medial epicondyles were found in patients without history of elbow fracture, whereas 9% of these patients had multipartite lateral epicondyles (p < 0.01). Current or previous elbow fractures increased the prevalence of multipartite epicondyles, with significant lateral predominance (medial epicondyle + 9% vs. lateral + 24%, p < 0.0001). Including all patients regardless of a history of elbow fracture, multipartite medial epicondyles were observed in 3% and multipartite lateral epicondyles in 18% (p < 0.0001). There was no gender difference in the prevalence of multipartition of either epicondyle, regardless of a trauma history. Conclusion Multipartite medial epicondyles occur in patients with current or previous elbow fractures only, whereas multipartite lateral epicondyles may be constitutional. Elbow fractures increase the prevalence of multipartite epicondyles on both sides, with significant lateral predominance. Key Points • Multipartite medial epicondyles should be considered of traumatic origin. • Multipartite lateral epicondyles may be constitutional. • Elbow fractures increase the prevalence of multipartite epicondyles on both sides with lateral predominance.

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Section: Discussionmentioning

confidence: 99%

Not all that looks fractured is broken—multipartite humeral epicondyles in children

et al. 2022

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“…Beide Normvarianten sollten nicht mit einer partialen Ruptur des proximalen bzw. ulnaren Ansatzes des MCL verwechselt werden[23].Dr. med.…”

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“…Beide Normvarianten sollten nicht mit einer partialen Ruptur des proximalen bzw. ulnaren Ansatzes des MCL verwechselt werden[23].Abb. 12 Signalanhebung am proximalen Ansatz des MCL in beiden Raumebenen.…”

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Instabilität des Ellenbogengelenks

Iuga¹,

Fervers²,

Wegmann³

et al. 2021

Radiologie up2date

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ZusammenfassungDas Ellenbogengelenk wird durch die beteiligten Knochen, Bandstrukturen und Sehnen von Extensoren und Flexoren stabilisiert. Die Instabilität des Gelenks ist nicht genau definiert, daher spielt die Bildgebung für die genaue Diagnostik eine entscheidende Rolle. Dieser Beitrag stellt die beteiligten Strukturen, die Formen der Instabilität und die diagnostischen Möglichkeiten im Detail vor.

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