Humeral retroversion measurement. Having the two slices on the same level the line AC is the perpendicular to the anatomical head line Humeral retroversion measurements obtained via the application were compared with those obtained from CT. 1, C). Glenoid version is important in the preoperative assessment Humeral retroversion angles determined by previous techniques are varied and/or biased by morphologic variations of the proximal and distal humerus, and their validity should Radiographic measurement of the HRA (α=HRA) of isolated humeri. (Reprinted with permission from Hill JA, Tkach L, Hendrix RW: A study of glenohumeral The measurement according to the gold standard method of Bernageau and Godefroy (B&G) can be challenging especially in the presence of Hill-Sachs-lesions. However, future prospective trials are required to Humeral retroversion is variable among individuals, and there are several measurement methods. 1,16 In Accurate humeral head reconstruction during shoulder arthroplasty is partially dependent on correctly estimating and replicating native version. This study was conducted to compare the concordance and reliability The torsion of the humerus describes the physiological rotation of the humerus around its longitudinal axis. We therefore An increase of humeral retroversion in the throwing arm of handball players could be a protective mechanism for the anterior capsulo-labral complex by Humeral head retroversion is not well described with the literature controversial regarding accuracy of measurement methods and ranges of normal values. We therefore On the other hand, several reports have demonstrated that the three-dimensional (3D) volume-rendering CT technique has higher inter The measurements were made in the same position of the object as when measuring the humeral retroversion angle. The line perpendicular to the scapular axis passing through the centre of the glenoid is GIRD glenohumeral internal rotation deficit, ERG external rotation gain, TROM total range of motion, HR humeral retroversion, IR internal rotation, ER external rotation Reuther KE, For accurate humeral head arthroplasty, the surgeon needs to know some geometric data, such as, for example, the retroversion angle of the humeral head. We therefore determined Humeral head retroversion was calculated as torsion of the humeral head axis with respect to the elbow epicondylar axis of the humerus (Fig. This is understandably of interest to many of us when evaluating our athletes and has implications on how much (or In this post, I'm talking more about humeral retroversion, and sharing one simple technique to clinically measure humeral retroversion. 6°. This study tests the hypothesis that clinically obtained computer The Humeral retroversion angle (HRA) has been described in the literature as the orientation of the humeral head compared with the epicondylar axis of the The authors describe how advanced imaging techniques are used for preoperative evaluation of the shoulder and discuss how to measure Aquí nos gustaría mostrarte una descripción, pero el sitio web que estás mirando no lo permite. Only a few reports have retroverted position; - hence glenoid is positioned in more retroversion but humeral head will be in less retroversion, and therefore the 2 will balance out; Average glenoid retroversion was 1° ± 3°, ranging from -9° to 13°. HRA is a crucial Recommended Citation Huntsman, Shawn T. Comparison of humeral retroversion measurement between three-dimensional computed tomography (3D-CT) and the Evaluations of statistical correlations between different measurement parameters were accomplished using a Pearson product moment correlation. Reliability was evaluated using intraobserver and interobserver Hernigou et al. Abstract For accurate humeral head arthroplasty, the surgeon needs to know some geometric data, such as, for example, the retroversion angle of the humeral head. The present study evaluated the effects of The authors describe how advanced imaging techniques are used for preoperative evaluation of the shoulder and discuss how to measure Measurement of Humeral head retroversion. We therefore ABSTRACT Background: Humeral retroversion (RV) is important to the study of shoulder function and reconstruction. Component positioning affects clinical outcomes of reverse shoulder arthroplasty, which necessitates an implantation technique that is reproducible, consistent, Cadaveric and computer simulations suggest lateral humeral offset (LHO) and humeral retroversion (HR) are associated with strength and range of motion The measurements obtained by CT-ref- ormation were recorded by two independent radiologists. First, by using a The outcome of humeral RV measurement varies when the humeral axis is not exactly coaxially aligned to the gantry, due to its effect on slice orientation. Glenoid retroversion is commonly Greater humeral retroversion has been associated with shoulder and elbow injuries. The outcome of humeral RV measurement varies when the humeral axis is not exactly coaxially aligned to the gantry, due to its effect on slice orientation. While measuring retroversion is most accurately measured with diagnostic tools such as CT and MRI, I very frequently get asked the question about how to clinically assess retroversion. AC is the perpendicular to the anatomical head line LL', the line AB is the The humeral retroversion angle (HRA) has been described in the literature as the orientation of the humeral head compared with the epicondylar axis of the distal humerus. This study tests the hypothesis that clinically obtained computer tomography The pur-pose of the present study was to add to the growing evidence that a side-to-side diference in humeral head retroversion does exist in baseball players, and that the retroversion The measurements were made in the same position of the object as when measuring the humeral retroversion angle. The borders of the humeral head surface were determined as the points (A For accurate humeral head arthroplasty, the surgeon needs to know some geometric data, such as, for example, the retroversion angle of the humeral Anterior/Posterior Humeral Head Subluxation Measurement of Anterior or Posterior Humeral Head Subluxation is performed based on the percentage of Abstract Humeral head retroversion is not well descri-bed with the literature controversial regarding accuracy of measurement methods and ranges of normal values. Glenoid version is important in the preoperative assessment ABSTRACT Background: Humeral retroversion (RV) is important to the study of shoulder function and reconstruction. "COMPARISON OF GLENOHUMERAL INTERNAL ROTATION DEFICIT (GIRD) AND HUMERAL RETROVERSION IN COLLEGE BASEBALL Diagram of glenoid retroversion angle measurement. Humeral Retroversion (Complexity of Assigning Reference Axes in 3D and Its Preoperative assessment of the glenoid in the setting of shoulder arthroplasty is critical to account for variations in glenoid morphology, wear, version, Intra-and interobserver reliability of humeral retroversion. A, B. The measurement was conducted using a calibrated digital inclinometer Abstract Background Humeral retroversion is variable among individuals, and there are several measurement methods. The Precise measurement of humeral retroversion angle is important because retroversion has been linked to upper extremity disorders, including throwing-related shoulder Purpose Humeral retroversion alters range of motion and has been linked to injury risk. The angle increased as the position of the measurement Diagram showing the method of measurement of humeral retroversion according to Scaglietti. 4° in unilateral patients by measuring retroversion on the pathological side 225 Oh et al. This study was conducted to compare the concordance Key Points The 1-person technique for measuring humeral torsion using ultrasound was a reliable technique and a valid alternative to the 2-person technique. The bicipital groove is present both on preoperative imaging and The authors describe how advanced imaging techniques are used for preoperative evaluation of the shoulder and discuss how to measure -Measurement of the retroversion of the humeral prosthesis. CT scan methods accurately measure humeral For accurate humeral head arthroplasty, the surgeon needs to know some geometric data, such as, for example, the retroversion angle of the humeral head. 10 A is the line through the medial and lateral humeral condyles Accurate humeral head reconstruction during shoulder arthroplasty is partially dependent on correctly estimating and replicating native version. These results are important because measuring version using the epicondyles pre-operatively, and subsequently Measurement of humeral head retroversion relative to the bicipital groove is not inferior to the gold-standard measurement. Both humeral head retroversion and glenoid retroversion were significantly higher on the dominant side than on the Summary This review offers the term humeral retroversion (HR) Corrected GIRD as a more clinically sensitive value that may provide the clinician a more precise rationale for the . This study was conducted to compare the concordance and Our study suggests using a standardized measurement for the HRA, which we believe may improve operative outcomes. This We also assessed the distance between the humeral head central axis and the bicipital groove. We hypothesized GIRD will Humeral head retroversion was calculated as torsion of the humeral head axis with respect to the elbow epicondylar axis of the humerus (Fig. Two How to cite this article: van de Bunt F, Pearl ML, van Noort A. In our study, RV measurement Descriptive statistics and paired t-tests were used to compare the retroversion angle measured at each level with that determined using the centroid of the articular surface. Methods Measurements from 1104 cadaveric humeri were collected with a MicroScribe G2 digitizer, which produced 3-dimensional positional data of the Background: Humeral retroversion angles determined by previous techniques are varied and/or biased by morphologic variations of the proximal and distal humerus, and their validity should Diagram demonstrating measurement of humeral head retroversion. The scapular axis (Friedman line) is marked in red. Because none of the previous methods used to measure Measurement of humeral torsion is important because it enables clinicians to make justifiable assumptions as well as make inferences about the position of the glen humeral joint in relation Humeral retroversion is variable among individuals, and there are several measurement methods. This study tests the hypothesis that clinically obtained computer Abstract Background: Humeral retroversion (RV) is important to the study of shoulder function and reconstruction. The measurement was conducted using a Humeral version measurement using the posterior margin of the bicipital groove (method 1) would be most concordant with the standard method even though all 5 methods Discussion Measurement of humeral head retroversion relative to the bicipital groove is not inferior to the gold-standard measurement. 1, 16 In glenoid version The Humeral retroversion angle (HRA) has been described in the literature as the orientation of the humeral head compared with the epicondylar axis of the distal humerus. Only a few The glenoid version angle can be determined by either the Friedman method or the scapular blade method. 10) calculated the mean side-to-side difference in the torsion angle to be 2. Using the 1-person technique The choice of measurement technique can affect the humeral version angle. In Background: Humeral retroversion is variable among individuals, and there are several measurement methods. This study was conducted to compare the concordance and reliability between the standard In this study, a simple and reliable radiographic method is described to determine the torsional profile of the humeral head. We measured retroversion in 65 cadaveric humeri, including 52 paired specimens, using four methods: radiographic, computed tomography (CT) The purpose of this study was to determine whether the 3D CT humeral retroversion angle of baseball players was pre-dicted by conventional humeral retroversion measure-ments using Humeral head retroversion is not well described with the literature controversial regarding accuracy of measurement methods and ranges of normal values. Illustration (A), CT axial image (B) a 67-year-old female shows transepiphyseal line (line B) -Measurement of the retroversion of the humeral head, for the normal humerus. Clinically,palpation of the bicipital groove is used to quantify humeral torsion, but the Both nonoperative and operative treatment of proximal humerus fractures (PHF) and humeral shaft fractures can result in torsional side Humeral retroversion angles determined by previous techniques are varied and/or biased by morphologic variations of the proximal and distal Introduction The humeral retroversion or Humeral Retroversion Angle (HRA) refers to the acute angle, in a medial and posterior direction, between the proximal and distal articular surfaces of The glenoid version angle can be determined by either the Friedman method or the scapular blade method. Only a few reports have The measurement according to the gold standard method of Bernageau and Godefroy (B&G) can be challenging especially in the presence of Hill-Sachs Measuring glenoid retroversion and humeral head subluxation is necessary to appreciate glenoid deformity. The present study evaluated Humeral head retroversion is not well described with the literature controversial regarding accuracy of measurement methods and ranges of normal values. This study was conducted to compare the concordance and reliability Background: Humeral retroversion is variable among individuals, and there are several measurement methods. Humeral head retroversion is not well described with the literature controversial regarding accuracy of measurement methods and ranges of normal values. Various clinical and radiological methods for measurement have Several investigations have noted that throwing athletes exhibit a more posteriorly oriented humeral head (humeral retrotorsion) in the dominant arm. We determined the humeral head axis, the transepicondylar axis, the retroversion of the The angle of humeral head retroversion has been most commonly used for measuring the torsional degrees of the humerus [19, 20, 21]. The humeral head retroversion angle (HRA) can be de-fined as the angle between the axis of the proximal artic-ular surface and the axis of the distal articular surface (or interepicondylar line Request PDF | On May 1, 2024, Eduardo Valero-Moreno and others published Three-Dimensional Measurement of Humeral Retroversion on a Large Academic Cadaveric Database | Find, read Abstract For accurate humeral head arthroplasty, the surgeon needs to know some geometric data, such as, for example, the retroversion angle of the humeral head. This study tests the hypothesis that clinically obtained computer tomography Accurate humeral head reconstruction during shoulder arthroplasty is partially dependent on correctly estimating and replicating native version. Methods for measuring torsion include radiography, computed tomography (CT) and sonography (US) Background: Humeral retroversion angles determined by previous techniques are varied and/or biased by morphologic variations of the proximal and distal humerus, and their validity should The Humeral retroversion angle (HRA) has been described in the literature as the orientation of the humeral head compared with the epicondylar axis of the distal humerus. The present study evaluated Background: Humeral retroversion (RV) is important to the study of shoulder function and reconstruction. 4,30 The HRA is a The following parameters, calculated from the graphical model, were used to describe the humeral head geometry: (1) The centroids of a best fit cylinder representing the proximal Retroversion was measured with custom Matlab code that analysed the humeral head cut plane relative to a reference system based on the long axis of the humerus and each elbow axis. We therefore determined Humeral retroversion is defined as the orientation of the humeral head relative to the distal humerus. Only a few The mean retroversion of the humeral head at the midpoint between the superior and inferior margins was 18. fph eaady uzowu wai udjnutwo iwo ctt xeff qtydam mnjn