The influence of proximal ulnar morphology on elbow range of motion

Rouleau, Dominique M.; Canet, Fanny; Chapleau, Julien; Petit, Yvan; Sandman, Émilie; Faber, Kenneth J.; Athwal, George S.

doi:10.1016/j.jse.2011.10.008

Cited by 31 publications

(15 citation statements)

References 18 publications

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“…Our findings are consistent with clinical observations that the coronoid process may not be locked in the coronoid fossae during elbow flexion due to the development of muscles and soft tissues in the anterior aspect of the limb. These muscles, such as the biceps brachi, brachioradialis, and flexor capi radialis together with soft tissues such as skin and adipose tissue would likely restrict the range of flexion (Rouleau et al, ). To the contrary, the olecranon process occupies the olecranon fossa in full extension (Mays, ) thereby limiting hyperextension.…”

Section: Discussionmentioning

confidence: 99%

Morphometric Characteristics of the Humerus and Ulna in Limbs Bearing the Supratrochlear Aperture (STA)

Ndou

Schepartz

2015

The Anatomical Record

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The supratrochlear aperture (STA) is a perforation of the septum found between the olecranon and coronoid fossae of the humerus. Its prevalence is population specific and varies by sex. There is no consensus on the etiology of this feature despite decades of investigation. Two aspects of the mechanical theory, which states that the STA is formed when the ulnar olecranon and coronoid processes impinge upon the septum separating the olecranon and coronoid fossae, were investigated. First, osteometric measures of bone size were used to test the proposition that larger humeri are less prone to STA formation. We compared the dimensions of STA bearing humeri with those lacking STAs and investigated which skeletal features discriminate among South African populations. To specifically evaluate the mechanical theory that articulation with the olecranon and coronoid fossae may result in STA formation, dimensions of the olecranon and coronoid processes were compared. Our results verified that smaller individuals are prone to STA formation and that a significantly longer olecranon process is associated with the aperture. The olecranon process length and olecranon-coronoid distance were the main contributors to STA presence. Variables that contributed the most towards discrimination among the South African populations were the olecranon fossa depth and right humeral head circumference. An inverse relationship between the olecranon process length and olecranon fossa depth was also associated with presence of the STA. Anat Rec, 299:220-233, 2016. V C 2015 Wiley Periodicals, Inc.

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Section: Discussionmentioning

confidence: 99%

Morphometric Characteristics of the Humerus and Ulna in Limbs Bearing the Supratrochlear Aperture (STA)

Ndou

Schepartz

2015

The Anatomical Record

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“…The ulna has been described to have a physiologic apex dorsal bow that has been named as ''proximal ulna dorsal angulation'' (PUDA) and this angle is very important for the anatomic reduction of the fractures of proximal ulna. In the literature, the mean PUDA was found 5.7° [15,16] [19]. These studies pointed out that if the magnitude of PUDA increased, maximum elbow extension and global elbow range of motion (ROM) would have decreased [22].…”

Section: Varus Angulationmentioning

confidence: 99%

Redefining the proximal ulna anatomy

et al. 2014

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The unique bony architecture of the proximal ulna presents particular difficulties for the implants used in fracture fixation and arthroplasty of the elbow. Knowing the detailed anatomy of the variations of proximal ulna will guide the surgeon to obtain a more reliable length of the olecranon and to offer a safe place for Kirschner wire replacement concerning humero-ulnar joint functionality. In this study, PUTA was also defined. The angle determines the rotation of the proximal ulna and it has a great importance for the movements of the joint. The measured angulations will help the surgeon to design the proper prosthesis for the maintenance of the functions of the elbow joint.

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“…2,7 The PUDA was shown to correlated to the range of motion of the elbow. 21 Elbows with a smaller PUDA (<4.9 ) had been shown to have significantly greater terminal extension (mean of 4.2 ) but similar terminal flexion compared with elbow with larger PUDA.…”

Section: The Anatomy Of Proximal Ulnamentioning

confidence: 90%

Clinical anatomy and biomechanics of the elbow

Chin

Hussain

Mazis

et al. 2021

Journal of Clinical Orthopaedics and Trauma

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The anatomy of the elbow joint had been studied extensively over the last 2 decades. The increased understanding of the anatomy and contribution of the anatomical structures to the elbow biomechanics had enabled surgeons to improve the results of surgical reconstruction and fracture fixation. This review articles intend to summarise the salient functional and clinical anatomical and relevant biomechanical data that had been published recently.

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The influence of proximal ulnar morphology on elbow range of motion

Cited by 31 publications

References 18 publications

Morphometric Characteristics of the Humerus and Ulna in Limbs Bearing the Supratrochlear Aperture (STA)

Morphometric Characteristics of the Humerus and Ulna in Limbs Bearing the Supratrochlear Aperture (STA)

Redefining the proximal ulna anatomy

Clinical anatomy and biomechanics of the elbow

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