Topic
Trochlear notch
About: Trochlear notch is a research topic. Over the lifetime, 107 publications have been published within this topic receiving 2307 citations. The topic is also known as: semilunar notch.
Papers published on a yearly basis
Papers
Journal Article•
TL;DR: The posterior portion of the ulnar collateral ligament, which arises from the posterior surface of the medial epicondyle, is taut in maximal flexion.
Abstract: The posterior portion of the ulnar collateral ligament, which arises from the posterior surface of the medial epicondyle, is taut in maximal flexion. The anterior portion, which takes its origin from the anterior and inferior surfaces of the epicondyle, contains three functional fibre bundles. One of these is taut in maximal extension, another in intermediate positions between middle position and full flexion while the third bundle is always taut and serves as a guiding bundle. Movements of the elbow joint are checked by the ligaments well before the bony processes forming the jaws of the trochlear notch lock into the corresponding fossae on the humerus.
196 citations
TL;DR: The ulnohumeral and radiohumeral joint was studied noninvasively in 3 elbows in healthy volunteers using a markerless bone registration algorithm and inferred contact areas on the ulna against the trochlea tended to occur only on the medial facet of the trochard notch in all of the elbow positions the authors tested.
112 citations
TL;DR: A quantitative analysis of 21 3-dimensional computed tomography scans to evaluate the degree to which the anteromedial facet protrudes as a distinct process separate from the proximal ulnar metaphysis found that this relatively vulnerable protrusion is frequently a separate fracture fragment in complex traumatic elbow instability.
87 citations
TL;DR: The different patterns of subchondral mineralization were shown to reflect the loading history of the overlying articular surfaces, which is determined mainly by geometrical factors.
78 citations
TL;DR: A physiological incongruity of the articular surfaces may serve to optimise the distribution of stress in cadaver humeroulnar joints.
Abstract: In 16 cadaver humeroulnar joints, the distribution of subchondral mineralisation was assessed by CT osteoabsorptiometry and the position and size of the contact areas by polyether casting under loads of 10 N to 1280 N. Ulnas with separate olecranon and coronoid cartilaginous surfaces showed matching bicentric patterns of mineralisation. Under small loads there were separate contact areas on the olecranon and coronoid surfaces; these areas merged centrally as the load increased. They occupied as little as 9% of the total articular surface at 10 N and up to 73% at 1280 N. Ulnas with continuous cartilaginous surfaces also had density patterns with two maxima but those were less prominent, and in these specimens the separate contact areas merged at lower loads. The findings indicate a physiological incongruity of the articular surfaces which may serve to optimise the distribution of stress.
62 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 4 |
| 2020 | 3 |
| 2019 | 3 |
| 2018 | 4 |
| 2017 | 8 |
| 2016 | 5 |