Anatomical variants complicating the posterior approaches towards the elbow joint

Kunc, Vojtěch; Beneš, Michal; Veigl, D; Kachlík, David

doi:10.1007/s00276-023-03124-9

Cited by 3 publications

(2 citation statements)

References 40 publications

(44 reference statements)

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“…The complex insertional anatomy of the triceps brachii muscle is of high clinical significance. Most frequently, the triceps brachii muscle is split or completely reflected during open reduction and internal fixation of fractures concerning the distal portion of the humerus or olecranon (Kunc et al, 2023 ). Also, traumatic ruptures of the common tendon require surgical repair to restore its function (Keener et al, 2010 ).…”

Section: Discussionmentioning

confidence: 99%

“…They described an aberrant muscle stretched between the medial border of the olecranon, connected with the adjacent tendon of the triceps brachii muscle, and the medial epicondyle of the humerus, but this definition refers to a variant muscle called anconeus epitrochlearis or epitrochleoanconeus muscle. It occurs in about 1–29% of individuals and it is known to cause ulnar nerve compression (Kunc et al, 2023 ).…”

Section: Discussionmentioning

confidence: 99%

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Does the articularis cubiti muscle really exist? Anatomical, histological, and magnetic resonance imaging study with a narrative review of literature

et al. 2023

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Although the term articularis cubiti muscle is incorporated in the official anatomical nomenclature, only sparse data about its appearance are available. It is usually described as few fibres originating from the medial head of the triceps brachii muscle and inserting to the capsule of the elbow joint. However, the most recent observations regarding the morphological relations in the posterior elbow region point towards the absence of a well‐defined muscle. Therefore, this study was designed to verify the existence of the articularis cubiti muscle in question and to compile more data on the topographical features of the subtricipital area near the posterior aspect of the elbow. To address these questions, 20 embalmed upper limbs were dissected, and seven samples were collected for histological analysis. The laboratory findings were then correlated with 20 magnetic resonance imaging (MRI) scans of the elbow. Consequently, a narrative review of literature was performed to gain more information on the discussed muscle in a historical context. Upon the anatomical dissection, muscular fibres running from the posterior aspect of the shaft of the humerus to the elbow joint capsule and olecranon were identified in 100% of cases. Histologically, the connection with the joint capsule was provided via winding bands of connective tissue. On MRIs, the muscular fibres resembled a well‐demarcated thin muscle located underneath the medial head of the triceps brachii muscle. Combined with the review of literature, we concluded that the constant articularis cubiti muscle originates from the posterior shaft of the humerus and attaches indirectly to the posterior aspect of the elbow joint capsule and directly to the superior portion of the olecranon. The obtained results slightly differ from the modern description, but are in agreement with the original publication, which has become misinterpreted throughout time. Presumably, the misused description has led to questioning the existence of an independent muscle. Moreover, our findings attribute to the articularis cubiti muscle, a function in pulling on the posterior aspect of the elbow joint capsule to prevent its entrapment, and possibly also a minor role in extension of the forearm. The presented results should be taken into consideration when intervening with the posterior aspect of the elbow joint because the articularis cubiti muscle poses a consistently appearing landmark.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Does the articularis cubiti muscle really exist? Anatomical, histological, and magnetic resonance imaging study with a narrative review of literature

et al. 2023

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New insight into the morphological characteristics of patella cubiti

et al. 2023

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The importance of radiological parameters of proximal femoral morphology in recovery management of patients with avascular necrosis undergoing hip arthroplasty

Scheau,

Dragosloveanu,

Petre

et al. 2023

Balneo and PRM Research Journal

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Background and Objectives: Our study aimed to radiologically assess the morphology of the proximal femur in patients with avascular necrosis (AVN). We considered that the correct evaluation of the proximal femur morphology is essential and shows multiple clinical applications that can impact patient recovery and outcome. Materials and Methods: Our study included 177 patients (85 male and 92 female) with AVN regardless of the degree. The patients were assessed by bilateral hip X-ray in the supine position. We selected the most common radiographic parameters to evaluate for all patients: cortical thickness index (CTI), canal flare index (CFI), calcar-to-canal ratio (CCR), and morphological cortical index (MCI). Results: Average values for the parameters were: CTI = 0.5192 ± 0.07528, CFI= 3.5515 ± 0.5071, CCR = 0.4469 ± 0.05363 and MCI = 2.7572 ± 0.07704. We found no statistically significant differences between genders, except for CFI (p = 0.0325). Conclusions: The anatomical configuration of the proximal femur can play a major role in the process of planning the appropriate implant for total hip arthroplasty, as well as in the proper positioning of the implant during the surgical procedure. A thorough knowledge of the proximal femur morphology can be of great use to the orthopedic surgeon and may help decrease perioperative complications.

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Anatomical variants complicating the posterior approaches towards the elbow joint

Cited by 3 publications

References 40 publications

Does the articularis cubiti muscle really exist? Anatomical, histological, and magnetic resonance imaging study with a narrative review of literature

Does the articularis cubiti muscle really exist? Anatomical, histological, and magnetic resonance imaging study with a narrative review of literature

New insight into the morphological characteristics of patella cubiti

The importance of radiological parameters of proximal femoral morphology in recovery management of patients with avascular necrosis undergoing hip arthroplasty

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