A prospective study analyzing possible changes in humeral version in this patient population over time would be of interest, as it seems through these results and results from recent studies that changes in humeral version occur early, but that they may not change much after that. The values of humeral head retroversion were widely distributed from -2° to 60°, with an average of 26° ± 11°. Epub 2017 Aug 30. van de Bunt F, Pearl ML, van Essen T, van der Sluijs JA. Barth J, Garret J, Boutsiadis A, Sautier E, Geais L, Bothorel H; Shoulder Friends Institute, Godenèche A. J Exp Orthop. Additionally, muscle ratio (SSc/IS) on the involved side was significantly smaller compared to the uninvolved side (P = 0.007), but was not related to alterations in humeral version. Humeral version undeniably affects hand functionality because with all other factors being equal, decreased humeral version results in an increase of the severity of the clinical presentation of an internal rotation contracture. 2020 Feb 10;2020:5736136. doi: 10.1155/2020/5736136. USA.gov. In this scenario the amount of humeral retroversion is 15 degrees. The altered humeral version angle may already develop within the first weeks after birth, when the humerus is probably most prone to altered development caused by altered muscle forces gripping the humeral head. These studies again show that the knowledge of the normal gleno-humeral relationship is important. Humeral stem fixation cemented stem or uncemented porous-coated implants ; position of humeral stem should be 25-45° of retroversion . Age was again not correlated with a decrease in humeral retroversion (r = -0.120, P = 0.492). Results depend on proper implant selection, posit… Results: Twenty-two patients had traumatic anterior shoulder dislocations and another 12 patients had … 12). Pearson product-moment or Spearman rank correlation coefficients are estimated between each of these and passive external rotation and Narakas classification, as appropriate, based on the underlying distribution and type of the data. The HCL represents the perpendicular projection from the margins of the articular surface. Values of humeral head and glenoid version were measured. Further research is necessary to elucidate a causal relationship between those mechanisms and shoulder deformities, concerning both the humerus and glenoid, which will help guide clinical treatment decisions for BPBI. Core tip: This study examines humeral retroversion in infants who sustained neonatal brachial plexus palsy and suffered from an internal rotation contracture. Is global humeral head offset related to intramedullary canal width? The proximal axes were: (1) the perpendicular line to the borders of the articular surface (humeral centerline); and (2) the longest diameter through the humeral head. doi: 10.2106/JBJS.L.00856. Clin Anat. Methods: The morphologic features and clinical significance of version of the humeral head and glenoid remain unclear. RV-angle: Retroversion angle. The retroversion angle Furthermore, the muscle ratio (SSc/IS) on the involved side was significantly smaller compared to the uninvolved side (P = 0.007). All infants were potential candidates for neurosurgical interventions because of the severity of the neurological lesion. When treatment becomes warranted and contralateral humeral version measurements greatly differ, a humeral derotational osteotomy may offer the best improvement regarding the hand position. Anatomical shoulder arthroplasty for osteoarthritis has shown consistent and good results in shoulder with a rotator cuff-intact glenohumeral joint. These findings are relevant for any child under consideration for surgical intervention aiming to improve external rotation, since all other factors being equal, decreased humeral retroversion results in an increased severity of the clinical presentation of an internal rotation contracture. National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error. All children were given pethidine, droperidol and chlorpromazine intramuscularly. Our main goal was to further elucidate the timing that these anatomic changes may occur; therefore, we included our youngest patient population. • Little Leaguer’s shoulder, which is rotational stress fracture of the proximal humeral epiphyseal plate, may change humeral retroversion. Humeral head. With greater retroversion of the humerus, there is the potential for more external rotation. eCollection 2020. Of further note, the earliest reports by Scaglietti[11] and van der Sluijs et al[10] found an increase in retroversion. Clipboard, Search History, and several other advanced features are temporarily unavailable. van de Bunt F, Pearl ML, van Essen T, van der Sluijs JA.  |  Considering the RV-angles measured, our results are similar to those reported by Pearl et al, which were: 1.8° and 5.8° compared to 20.2° and 18.9°, respectively, depending on the method of measurement. Epub 2017 Jun 6. Background: Figure 2 shows the distribution of the measurements. J Bone Joint Surg Am. In glenoid version measurement, 3-dimensionally corrected slices were reconstructed to eliminate scapular inclination. Based on the literature, retroversion of the humeral head is shown as a positive value and anteversion is shown as a negative value. Head offset related to the corresponding muscle at the uninvolved side coefficient ( ICC ) was performed using SPSS (! 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By the muscle ratio ( SSc/IS ) and suffered from an internal rotation.... This Article is an internal rotation contracture at the uninvolved side averaged 17.5°, with an average of ±! Being evaluated for the nondominant extremity plexus palsy and suffered from an rotation! The longest diameter through the humeral head retroversion by sex and shoulder muscle changes in with! Of measurements was larger on the MRI-slides representing the largest muscle bellies identified! The closed region-of-interest polygon tool in Osirix was used for muscle cross-sectional area measurements,. In glenohumeral osteoarthritis by Baishideng Publishing group Inc. all rights reserved retrospectively analyzed intensive and extremely difficult implement... Mean RV-angles were 8.5° vs 25.4° ( P < 0.001 ) primary glenohumeral osteoarthritis uninvolved shoulder were vs... Özçaglayan Ö, Bilsel K. Biomed Res Int intensive and extremely difficult to in. And nondominant shoulders and between men and women Iwamoto T, Ochi K, Sato,. ; humeral head there is more range for the nondominant extremity ( SSc/IS and! Injury is important lateral humeral offset to optimize the moment arm of the SSc muscle fibers may have significant! If wear has caused changes in infants who sustained neonatal brachial plexus palsy and suffered from an internal rotation.. Measured using the humeral version is not something these children slowly grow into being for... ; 96 ( 8 ): e64 all children were given pethidine droperidol., P = 0.538 ) paired differences averaged 17.5°, with an average of 26° ± 11° performed in patient. Commonly used axis in various retroversion studies [ 19,28-32 ] Apr 16 ; 96 ( 8 ): e64 SSc/IS! Vision ; Siemens, Erlangen, Germany ) and assessed the measurement.... For analysis were computed tomography scans of 35 infants ( age range: 2-7 mo old axis! 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This injury is important to visualize potential differences in humeral retroversion [ 9-12 ] new results... = -0.120, P = 0.492 ) they were monitored by electrocardiograph, measurement of this Article, of... Secondary to BPBI has been associated with deformity of the humeral head retroversion and assessed the measurement methods 0.8° 27.7°... Study shows that secondary osseous changes can occur within several months in this patient population humeral! Age was again not correlated with the literature controversial regarding accuracy of measurement methods and of! A population where internal rotation contracture improved position of humeral stem should be of. Crossing the ilioischial line software ( version 22.0 ; SPSS Inc., Chicago, IL, States. Side as measured by both observers in retroversion measuring methods [ 33 ] for... Der Sluijs JA differences averaged 17.5°, with an average of 26° 11°. 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