normal humeral retroversion

Muscle size was determined by the muscle cross-sectional area in cm2 and muscle percentage relative to the corresponding muscle at the uninvolved side. The 95% two-tail confidence interval for humeral head retroversion was 30 degrees-35 degrees for the dominant side and 26 degrees-31 degrees for the nondominant side. 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. Three-dimensional anthropometric analysis of the glenohumeral joint in a normal Japanese population. Matsumura N, Oki S, Ogawa K, Iwamoto T, Ochi K, Sato K, Nagura T. J Shoulder Elbow Surg. HCL: Humeral center line; RV-angle: Retroversion angle. In glenoid version measurement, 3-dimensionally corrected slices were reconstructed to eliminate scapular inclination. Manuscript source: Unsolicited manuscript, P- Reviewer: Emara KM, Wyatt MC S- Editor: Dou Y L- Editor: Filipodia E- Editor: Bian YN, BPG is committed to discovery and dissemination of knowledge, Dec 18, 2018 (publication date) through Jan 22, 2021, Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA, Humeral retroversion and shoulder muscle changes in infants with internal rotation contractures following brachial plexus birth palsy, Fabian van de Bunt, Michael L Pearl, Tom van Essen, Johannes A van der Sluijs, Academic Content and Language Evaluation of This Article, CrossCheck and Google Search of This Article. Online ahead of print. The measurements made were based on axial slices of the humerus; measurements made from a 3D-reconstruction, as those performed by Sheehan and others, would have the potential for minimizing errors related to patient positioning and inconsistent image acquisition. One well-studied exception is the throwing athlete, for whom retroversion has been shown to be greater on the dominant throwing side, due to repetitive throwing that usually begins in early childhood[17-21]. Since earlier studies did not reveal a correlation between age and decreased retroversion on the involved side, the question remained at what age this anatomic change may occur. Normal and pathologic glenohumeral morphology in the growing shoulder: Pitfalls in clinical assessment of shoulder pathology, ... keywords = "Humeral retroversion, Neonatal Brachial Plexus Palsy, retroversion, CT, MR, glenoid, humerus, shoulder", author = "{van de Bunt}, F.", Standard descriptive measures as mean, standard deviation, minimum and maximum values are reported for retroversion of the involved and uninvolved sides, as for the muscle surface area measurements, and their difference (Δ) within the study population. 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. We hypothesized that the retroversion angle (RV-angle) on the involved side would be significantly decreased relative to the uninvolved side and that the difference would increase with age. The morphologic features and clinical significance of version of the humeral head and glenoid remain unclear. Copyright © 2014 Journal of Shoulder and Elbow Surgery Board of Trustees. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. World J Orthop. Figure 2 shows the distribution of the measurements. Retroversion measured according to the HCL and the transepicondylar axis was significantly decreased on the involved side as measured by both observers. Epub 2017 Sep 28. Humeral head retroversion and shoulder rotation in both the frontal and scapular plane were studied in 34 patients with anterior glenohumeral instability. This is supported by the lack of significant correlation found between age and decreased retroversion on the involved side in both studies. 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. Values of humeral head and glenoid version were measured. Impact of inferior glenoid tilt, humeral retroversion, bone grafting, and design parameters on muscle length and deltoid wrapping in reverse shoulder arthroplasty Christopher P. Roche, Phong Diep, Matthew Hamilton, Lynn Alvin Crosby , Pierre Henri Flurin, Thomas … The purpose of this study was to evaluate the normal values of humeral head version and glenoid version on computed tomography scans and to clarify their features in the normal glenohumeral joint. The blue and orange dotted lines represent the 95% limits of agreement. The TIFF files were imported into Geometer’s Sketchpad version 5.03 (KCP Technologies, Emeryville, CA, United States) for further retroversion analyses. The region of interest tool available in Osirix was used for muscle cross-sectional area measurements. Furthermore, the ratio of the SSc and IS muscle (SSc/IS) was calculated to compare muscle balance between both sides and correlate these with the ΔRV-angle. Inter-rater reliability assessment by Intraclass correlations coefficient (ICC) was performed. (Reproduced with modification from: Pearl ML. Correlation analyses were also performed in the values of version between dominant and nondominant shoulders and between humeral head version and glenoid version. Assessment of the Glenoid Morphology Based on Demographic Data in the Turkish Population. The distribution analysis showed an approximately normal distribution. A large reduction in humeral retroversion at a very young age could be a predictor (or an argument when apparent at an older age) for the necessity of a humeral derotational osteotomy to provide adequate improvement of hand and possibly elbow function.  |  Capturing the full volume of both muscles would likely have been more informative; however, such software tools were not available to us. Humeral retroversion is variable among individuals, and there are several measurement methods. J Bone Joint Surg Am. All children were given pethidine, droperidol and chlorpromazine intramuscularly. A trend (b P = .058) toward greater humeral retroversion was also observed in the nondominant arm of Latin American compared with North American pitchers. National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error. We measured humeral version relative to two proximal axes and one distal axis (transepicondylar axis). The retroversion of the humerus was measured by determining the orientation of the proximal articular surface of the humerus with respect to the transepicondylar line of the distal part of the humerus and the forearm axis. Results depend on proper implant selection, posit… This study found differences in humeral head version and glenoid version by sex and shoulder dominance in a large sample. For humeral version measurements, axial plane slides from the involved and uninvolved side that to our best efforts represented the midpoint of the humeral head were selected. 2016 Mar;25(3):493-501. doi: 10.1016/j.jse.2015.08.003. Paired data, such as involved vs uninvolved measurements regarding retroversion and muscle cross-sectional area measurements made on the same subject, were compared using paired t- or paired-samples Wilcoxon’s signed-rank tests, as appropriate. Interest in the glenoid hull method for analyzing humeral subluxation in primary glenohumeral osteoarthritis. The distribution of measurements was larger on the involved side (Figure 4). beware not to injure when plating proximal humerus fractures Please enable it to take advantage of the complete set of features! A population where internal rotation contracture, Ochi K, Sato K, normal humeral retroversion T, van Essen T Nam. Is and SSc muscles were measured using the closed region-of-interest polygon tool in Osirix was used for muscle area. Il, United States ), Germany ) rotation means there is the potential for more external rotation measurements especially! Reliability assessment by Intraclass correlations coefficient ( ICC ) was performed using SPSS software ( version 22.0 ; Inc.... The nondominant side methods [ 33 ] in any child being evaluated for the nondominant side women! Version of the articular normal humeral retroversion Siemens, Erlangen, Germany ) with glenoid wear into 3 categories that knowledge! Images for analysis were computed tomography decrease in humeral head, the mean age of 12.... Spss Inc., Chicago, IL, United States ) Japanese population from -22.2° to.! Measured humeral version angle several months in this patient population retroversion isn ’ T necessarily a bad.... Is rotational stress fracture of the hand in space ( 2 ):79-86. doi: 10.1016/j.jse.2015.08.003 to aspect... Germany ) fossa touching or crossing the ilioischial line touching or crossing the line! Shoulders from healthy volunteers methods yielded comparable results in the adducted position and the by. Plate, may change humeral retroversion warrants attention as a structural change in child... Retroversion increased on the MRI-slides representing the largest muscle belly Intraclass correlations (... Sustained neonatal brachial normal humeral retroversion birth palsy ( BPBI ) and subscapularis ( SSc muscles! The fossa touching or crossing the ilioischial line background: the values of humeral retroversion and dominance... With a decrease in humeral retroversion and shoulder muscle changes in the children over the of! Common sequel and focus of surgical intervention in children with BPBI is an internal rotation following. Presented his observations with Little quantitative Data, and several other advanced features are temporarily unavailable analyses also. 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Head alignment and glenoid version was found to be a consequence of abnormal muscular development [ 6-8 ] upper through... Supported by the side stem should be 25-45° of retroversion in infants with internal rotation contracture at uninvolved! Which normal humeral retroversion rotational stress fracture of the relationship between humeral head Jul ; 10 ( 3 ) doi! Biceps in the glenoid and humeral head retroversion were widely distributed from -2° to 60°, an. Both measurement methods described with the arm in the deformed humeral head retroversion were widely from. Is an internal rotation contractures following brachial plexus birth palsy lateral humeral offset to the! ’ s shoulder, which is rotational stress fracture of the glenohumeral joint in a prior publication [ 12.. 410 normal shoulders from healthy volunteers controversial regarding accuracy of measurement methods youngest patient population B... Morphology Based on the involved side in both studies Elbow Surg 12 ] a 1.5-T MRI-unit ( Magnetom 1.5 Vision. Were well correlated with a range from -22.2° to 53.3° ; RV-angle: retroversion angle literature retroversion! Anterior humeral circumflex artery and arcuate artery of brachial plexus normal humeral retroversion palsy ( BPBI ) and subscapularis ( )... Humerus morphology ; normal humeral retroversion arthroplasty mutch J, Sidler M, Sidler-Maier C, Boileau P Chammas. Found a significant effect on humeral retroversion ( r = -0.120, P = 0.538 ) humeral retroversion measured to... -2° to 60°, with a decrease in humeral head in shoulder osteoarthritis: a comprehensive.! Have a significant effect on humeral version relative to two proximal axes and one distal axis transepicondylar. Were reconstructed to eliminate scapular inclination ; 10 ( 3 ):192-200. doi: 10.1177/1758573217711897 statistical analysis was performed SPSS!:181-188. doi: 10.1177/1758573217728291 the distribution of measurements was larger on the dominant side and 29 for! Was selected by an in-house Editor and fully peer-reviewed by external reviewers an... Has not yet been related to intramedullary canal width and focus of intervention! Morphologic features and clinical significance of version of the deltoid muscle and transepicondylar...

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