Morphometric analysis of septal aperture of humerus

Raghavendra, K; Y, Anil kumar Reddy; Shirol, VS; Dixit, Daksha; Sp, Desai

doi:10.5958/j.2319-5886.3.2.058

Cited by 6 publications

(16 citation statements)

References 10 publications

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“…Lamina perforation among males had frequently been observed on the right humerus, while among females and younger adults it was more frequent on the left humerus, resulting in more septal apertures than in older ones (all these differences insignificant). These results are in contradiction to the majority of studies, where it was more prevalent in females [2,17,29,32,33,43], and left asymmetry has commonly been observed [2,17,18,23,29,33,34,35,43]. However, there are reports of higher incidence of subtrochanter foramen among males [12,24].…”

Section: Discussionmentioning

confidence: 75%

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Septal aperture aetiology: still more questions than answers

Myszka

2015

Folia Morphol

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Section: Discussionmentioning

confidence: 75%

“…Individuals with this trait may be able to overextend the elbow joint [8]. The frequency of the foramen among mankind ranges from about 0.3% to 60%, in different races [for the details see 18,28,34,35,39]. The cause of septal aperture has been widely discussed; however, the problem has not been solved yet.…”

Section: Introductionmentioning

confidence: 99%

Septal aperture aetiology: still more questions than answers

Myszka

2015

Folia Morphol

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“…The lamina is present until seven years of age and after it is occasionally absorbed to subtrochlear foramen (Kate et al, 1970). In man, the frequency of the foramen has ranged from about 0.3% to 60% in different races (for the details see Krishnamurthy et al, 2011;Patel et al, 2013;Raghavendra et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Septal Aperture and Osteoarthritis—The Same or Independent Origins?

Myszka¹,

Trzciński²

2015

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Many theories have been suggested in order to explain the etiology of septal aperture (SA), however the problem has not been solved yet. The aim of the study was to examine the relationship between septal aperture and osteoarthritic changes. The skeletal material had come from a medieval cemetery in Cedynia, Poland. Skeletons of 201 adults had been examined. Septal aperture of humeral bone had been scored. Osteoarthritic changes (osteophytosis, porosity, eburnation) of articular surfaces of distal end of humerus and proximal end of ulna had been examined. In the present study female right bones with septal aperture were predicted to have porosity of articular surfaces of elbow joint (R = 0.30). But the caution is required when interpreting this result. Firstly, significant correlation was observed in the females' right bones only. Secondly, the etiology of porosity is not clear. Septal aperture did not correlate with osteophytosis, and eburnation (correlation is low and negative). This result contradicts the mechanical theory of SA formation (SA is a result of the impingement of overgrown ulnar process on the humeral septum). One explanation can be that osteophytes limit the natural motion of the joint to constitute a repair response an attempt at stabilizing the degenerating joint. It can prevent from septal aperture formation, or/and its enlargement. As in the case of osteophytes, eburnation limits elbow mobility, and thereby can exclude septal aperture formation. Further analyses of the relationship between septal aperture and osteoarthritic changes formation are needed. It is important for anthropological, and medical researches.

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“…Septal aperture (SA) of the humerus, a condition also known as supratrochlear foramen or intercondylar foramen, is a perforation in the bony lamina that separates the coronoid and olecranon fossae (Mays, 2008;Paraskevas et al 2012). Analyses of SA are of interest in both bioarchaeological (Krishnamurthy et al 2011;Raghavendra et al 2014) and medical (Paraskevas et al 2010;Koyun et al 2011) studies. Research in the bioarchaeological area is significant because SA is one of the non-metrical skeletal traits that play an important role in biological distance statistics and analyses of familial inheritance, population affinity (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…in treating fractures so as to avoid secondary fractures during surgery. This knowledge is recommended for radiologists in order to avoid misinterpretation of radiographs, as SA may be mistaken for an osteolytic lesion (De Wilde et al 2004;Koyun et al 2011;Krishnamurthy et al 2011;Paraskevas et al 2012;Erdogmus et al 2014;Raghavendra et al 2014). Medical knowledge about SA is essential during the evaluation of any pathological lesions at the distal end of the humerus (Mathew et al 2016;Sangeetha & Premchand, 2017).…”

Section: Introductionmentioning

confidence: 99%

The mechanical hypothesis of septal aperture formation tested in an early medieval population from Ostrów Lednicki (Poland)

2019

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The aetiology of septal aperture formation is still an open question. The influence of bone robusticity, osteoarthritis, osteoporosis, and the size and shape of ulnar processes has been discussed. Some researchers have shown that weaker muscles lead to greater joint hypermobility, the impingement of ulnar processes on the humeral lamina, and, consequently, septal aperture formation. Assuming this theory is correct, the question is whether flexion or extension or both play a role in septal lamina perforation. The aim of the study was to examine the mechanical hypothesis of septal aperture formation in samples of skeletal material derived from an early medieval cemetery in Ostr ow Lednicki (Poland). A total of 136 pairs of bones (humeri and ulnae) were examined. Septal aperture was scored as present or absent. Entheseal changes in ulna were used as markers of activity patterns, especially involving elbow extension and flexion. Entheseal changes were assessed based on a three-point rating scale. A significant negative correlation between septal aperture and triceps muscles was noted in right bones in females (s = -0.331) and in both sexes combined (s = À0.322). The relationship between septal aperture and the brachialis muscle was positive but non-significant. This means that looser triceps lead to greater looseness of the elbow, greater protrusion of the olecranon process, and consequent septal aperture formation. Different results were obtained for the brachialis, which may suggest that forearm flexion does not significantly affect septal lamina perforation.

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Morphometric analysis of septal aperture of humerus

Cited by 6 publications

References 10 publications

Septal aperture aetiology: still more questions than answers

Septal aperture aetiology: still more questions than answers

Septal Aperture and Osteoarthritis—The Same or Independent Origins?

The mechanical hypothesis of septal aperture formation tested in an early medieval population from Ostrów Lednicki (Poland)

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