Distal femur hemiepiphysiodesis in knee recurvatum: a new surgical technique / Hemiepifisiodese do fêmur distal no joelho recurvato: nova proposta cirúrgica

ABSTRACT Introduction: The genu recurvatum is characterized by a hyperextension deformity of the knee in the sagittal plane. Among its causes are conditions such as arthrogryposis, cerebral palsy, poliomyelitis, sequelae of tibial tuberosity fracture and some syndromes with generalized joint hypermobility. Treatment of this deformity can be challenging and, to date, aggressive methods such as femur or tibial osteotomies are the most used for its correction. Objective: This study aimed to describe a new surgical technique for correcting genu recurvatum. Methods: This is a prospective clinical study of children who underwent posterior hemiepiphysiodesis of the distal femur with transphyseal screws. Results: The approach proved to be safe and useful for genu recurvatum deformities, with femoral or articular apex. Conclusion: This approach shows great potential for correcting genu recurvatum in the developing skeleton, being an excellent alternative to the more aggressive methods currently used to treat this deformity. Level of evidence IV, Case Series.

RESUMO Introdução: O joelho recurvato é caracterizado por uma deformidade em hiperextensão do joelho no plano sagital. Entre suas causas, estão condições como artrogripose, paralisia cerebral, poliomielite, sequelas de fratura da tuberosidade da tíbia e algumas síndromes com hipermobilidade articular generalizada. O tratamento dessa deformidade pode ser desafiador e, até o momento, métodos agressivos como osteotomias do fêmur ou da tíbia são os mais utilizados para sua correção. Objetivo: Descrever uma nova técnica cirúrgica de correção do genu recurvatum. Métodos: Estudo clínico prospectivo de crianças submetidas à hemiepifisiodese posterior do fêmur distal com parafusos transfisários. Resultados: A técnica se mostrou segura e útil para as deformidades em recurvato do joelho, com ápice femoral ou articular. Conclusão: Essa técnica apresenta grande potencial de correção do joelho recurvato no esqueleto imaturo, sendo uma excelente alternativa aos métodos mais agressivos atualmente utilizados para o tratamento dessa deformidade. Nível de Evidência IV, Série de Casos

Glenoid size and orientation in the Chilean population / Tamaño y orientación glenoidea en la población chilena

Glenoid morphology is a key factor in determining the success of shoulder surgery. The purpose of this experimental study was to precisely determine the anatomical size and orientation of the glenoid in the Chilean population. 122 CT scans from asymptomatic Chilean patients were obtained. The mean age was 43.8 years (SD 12.3; range, 17-53 years) with 63 female and 59 male patients. For each of the scapulae, were obtained the glenoid version and inclination, maximum glenoid width and height, superior glenoid width, glenoid surface area, glenoid vault depth, and maximum scapular width. The glenoid size showed an average width of 26 ± 2.7 mm, a height of 40.3 ± 3.5 mm and a vault depth of 26.5 ± 3.7 mm. There were significant differences between men and women. The glenoid orientation showed an average of -13.9 ± 4.8° of retroversion and a superior inclination of 11.1 ± 4.7°. Significant differences between men and women were seen only for version. We conclude, that in this Chilean sample the morphological parameters of the glenoid correspond to the published literature, however, some characteristics in this cohort must be further confirmed using other methods.

La morfología glenoidea es un factor clave para determinar el éxito de la cirugía de hombro. El propósito de este estudio experimental fue determinar con precisión el tamaño anatómico y la orientación de la glenoides en la población chilena. Se obtuvieron 122 tomografías computarizadas de pacientes chilenos asintomáticos. La edad media fue de 43,8 años (DE 12,3; rango, 17-53 años) con 63 pacientes femeninos y 59 masculinos. Para cada una de las escápulas, se obtuvieron la versión glenoidea y la inclinación, el ancho y la altura glenoidea máxima, el ancho glenoideo superior, el área de superficie glenoidea, la profundidad de la bóveda glenoidea y el ancho escapular máximo. El tamaño glenoideo mostró un ancho promedio de 26 ± 2,7 mm, una altura de 40,3 ± 3,5 mm y una profundidad de bóveda de 26,5 ± 3,7 mm. Hubo diferencias significativas entre hombres y mujeres. La orientación glenoidea mostró un promedio de -13,9 ± 4,8 ° de retroversión y una inclinación superior de 11,1 ± 4,7 °. Se observaron diferencias significativas entre hombres y mujeres solo para la versión. Concluimos que en esta muestra chilena los parámetros morfológicos de la glenoides corresponden a la literatura publicada, sin embargo, algunas características de esta cohorte deben confirmarse aún más utilizando otros métodos.

Presença de retroversão umeral e discinesia escapular em praticantes de tiro de laço

RESUMO Objetivo: Avaliar a presença de retroversão umeral e discinesia escapular em praticantes de tiro de laço. Métodos: Estudo transversal com 129 sujeitos. Foram avaliados a presença de discinesia, a força muscular, a amplitude de movimento, o nível de funcionalidade e a dor no ombro. Resultados: A rotação externa foi maior (p = 0,005) e a rotação interna menor no ombro dominante (p = 0,0001). O movimento rotacional total do ombro dominante foi menor, em comparação com o não dominante (p = 0,0001). A presença de discinesia escapular foi de 32,6%, predominou a discinesia do tipo II (50%). A pontuação do Spadi foi significativamente maior nos praticantes com sintomas de dor (p < 0,05). Conclusão: Os praticantes de tiro de laço demonstraram retroversão umeral no ombro dominante e prevalência alta de discinesia escapular.

ABSTRACT Objective: The objective of the present study was to evaluate the presence of humeral retroversion and scapular dyskinesis in these practitioners. Methods: This cross-sectional study enrolled 129 subjects. The state of dyskinesis, muscle strength, range of motion, level of functionality and shoulder pain were evaluated. Results: The external rotation was higher (p = 0,005) and minor internal rotation on the dominant shoulder (p = 0,0001). The total movement of the dominant shoulder was lower, compared to the non-dominant (p = 0.0001). The presence of Scapular dyskinesis was 32,6%, predominantly type II dyskinesis (50%). The Spadi score was significantly higher in those with pain symptoms (p <0.05). Conclusion: People who practice tie-down roping showed humeral retroversion on the dominant shoulder and higher prevalence of scapular dyskinesis.

RESUMEN Objetivo: el objetivo del estudio fue evaluar la existencia de retroversión humeral y discinesia escapular en las personas que practican esta actividad. Métodos: estudio transversal con 129 individuos. Se evaluaron la existencia de discinesia, la fuerza muscular, la amplitud de movimiento, el nivel de funcionalidad y el dolor en el hombro. Resultados: la rotación externa fue mayor (p = 0,005) y la rotación interna, menor en el hombro dominante (p = 0,0001). El movimiento total del hombro dominante fue menor en comparación con el no dominante (p = 0,0001). La existencia de discinesia escapular fue del 32,6%, sobre todo la discinesia de tipo II (50%). La puntuación del SPADI fue considerablemente mayor en los practicantes con síntomas de dolor (p < 0,05). Conclusión: los practicantes de tiro de lazo mostraron retroversión humeral en el hombro dominante y una elevada prevalencia de discinesia escapular.

Analysis Of Femoral Neck Anteversion In Dry Adult Bones: A Morphometric Study

Introduction: The femoral neck anteversion can be defined as the angle between femoral bicondylar plane and aplane passing through the centre of the neck and head of femur. Adult femoral anteversion has been documentedat the range between 7-16 degrees.This angle is widely recognized as an important factor for hip stability. Thepresent study aimed to evaluate the normal anteversion range in adult Indian femur which would be of great helpin explorative orthopedic procedures and in designing of hip prosthesis.Materials and Methods: Study conducted in 202 femurs of 94 male (48 right and 46 left) and 108female bones (52right and 56 left). And the angle was measured using Kingsley Olmsted Method.Observation and Results: The mean value of anteversion angle of femurwas 7.61 degrees for male and 12.71degrees for females.Mean anteversion angle for both male and female femur was 10.37 degrees. Retroversionwas observed in 10 femurs(5%) and neutral version was observed in12 femurs (5.9%).Conclusion:Determining the anteversion angle is crucial for the diagnostic and therapeutic planning of patientswith various pathologies such as hip development dysplasias, cerebral palsy, varum thigh, flat thigh,epiphysiolysis, congenital club foot, congenital dislocation of the hipand other development abnormalities.Statistical analysis revealed sexual dimorphism in anteversion in Indians being greater among females thanmales

A CT scan anatomical study correlating between the retroversion of the humeral head and the orientation of the inter-tubercular sulcus

The shoulder socket is called the glenoid fossa This socket is shallow and is part of the scapula (shoulder blade) The surface of the humeral head and the inside of the fossa are covered with articular cartilage The glenohumeral joint consists of an articulation between the scapula and humerus Retroversion angle of humeral head (or retrotorsion angle, RA) is an important parameter in total shoulder arthroplasty and is one of these important reference factors which can influence the outcomes of total shoulder arthroplasty This study was undertaken to evaluate the correlation between retroversion angle of humeral head and position of intertubercular sulcus The present study is a prospective one which was conducted in the Department of Radiodiagnosis and Imaging at Government Medical College and Hospital, Srinagar The 60 dry adult humeri were analyzed by multiplanar computed tomography (CT) CT data were transferred to a workstation (Silicon Grafics; Sunnyvale, CA) for multiplanar CT-reformation The mean retroversion angle of the humeral head in relation of the transe-picondylar axis was 123 degree The mean ITS orientation was 407 degree The Pearson correlation coefficient between the retroversion of the humeral head and the ITS orientation was -037 There was an inverse correlation between the retroversion of the humeral head and the ITS orientation This variation is due to several factors, including the definition of humeral head retroversion, different methods of measurement, ranges of normal values, and accuracy of anatomic landmarks to guide determination of anatomic retroversion Humeral head retroversion is generally defined with respect to the plane of the humeral head articular surface proximally; distally, however, Yassar Shiekh, Aamir Javed Khan, Mohammad Iqbal Bhat A CT scan anatomical study correlating between the retroversion of the humeral head and the orientation of the inter-tubercular sulcus IAIM, 2018; 5(12): 96-101 Page 97 the reference axis has been debated, including the transepicondylar axis, trochlear tangent axis and forearm axis The study concludes that there is a reverse correlation between the retroversion of the humeral head and the orientation of the intertubercular sulcus

Incarceration of early gravid uterus with adenomyosis and myoma: report of two patients managed with uterine reduction

Although gravid uterine incarceration is typically diagnosed during the early second trimester, we encountered two unusual cases in early pregnancy. A 34-year-old multiparous woman with adenomyosis presented at 7 + 2 weeks of gestation with increased urinary frequency and a sensation of incomplete bladder emptying. The uterine incarceration was successfully reduced by manual reduction and pessary insertion, and she delivered a normal infant at term. In the second case, a 31-year-old nulliparous woman with a large myoma complained of dysuria, acute urinary retention, and intense back pain at 6 weeks of gestation. Manual reduction was successful in the knee-chest position. Subsequent pessary insertion failed; however, a slight reduction in pain was achieved. After a week, the fetus spontaneously aborted. In summary, gravid uterine incarceration is a rare but potentially fatal condition for the fetus, and a suspicion of this condition in patients with urinary symptoms, especially urinary retention and pelvic pain, is important in the early gestation period.

Evaluation of Sagittal Spine-Pelvis-Lower Limb Alignment in Elderly Women with Pelvic Retroversion while Standing and Walking Using a Three-Dimensional Musculoskeletal Model

STUDY DESIGN: In vivo biomechanical study using a three-dimensional (3D) musculoskeletal model for elderly individuals with or without pelvic retroversion. PURPOSE: To evaluate the effect of pelvic retroversion on the sagittal alignment of the spine, pelvis, and lower limb in elderly females while standing and walking. OVERVIEW OF LITERATURE: Patients with hip–spine syndrome have concurrent hip-joint and spine diseases. However, the dynamic sagittal alignment between the hip joint and spine has rarely been investigated. We used a 3D musculoskeletal model to evaluate global spinopelvic parameters, including spinal inclination and pelvic tilt (PT). METHODS: A total of 32 ambulant females (mean age=78 years) without assistance were enrolled in the study. On the basis of the radiographic measurement for PT, participants were divided into the pelvic retroversion group (R-group; PT≥20°) and the normal group (N-group; PT<20°). A 3D musculoskeletal motion analysis system was used to analyze the calculated value for the alignment of spine, pelvis, and lower limb, including calculated (C)-PT, sagittal vertical axis (C-SVA), pelvic incidence, lumbar lordosis, T1 pelvic angle (C-TPA), as well as knee and hip flexion angles while standing and walking. RESULTS: While standing, C-PT and C-TPA in the R-group were significantly larger than those in the N-group. Hip angle was significantly smaller in the R-group than in the N-group, unlike knee angle, which did not show difference. While walking, C-SVA and C-TPA were significantly increased, whereas C-PT decreased compared with those while standing. The maximum hip-flexion angle was significantly smaller in the R-group than in the N-group. There was a significant correlation between the radiographic and calculated parameters. CONCLUSIONS: The 3D musculoskeletal model was useful in evaluating the sagittal alignment of the spine, pelvis, and leg. Spinopelvic sagittal alignment showed deterioration while walking. C-PT was significantly decreased while walking in the R-group, indicating possible compensatory mechanisms attempting to increase coverage of the femoral head. The reduction in the hip flexion angle in the R-group was also considered as a compensatory mechanism.

Humeral retroversion and shoulder rotational mobility in young handball practitioners

ABSTRACTOBJECTIVE: To evaluate the prevalence of humeral retroversion and rotational mobility (RHH) in young handball practitioners and non-practitioners.METHODS: This is a cross-sectional study performed with two groups: the handball group, with 14 female students practicing handball and the control group, with 13 young participants non-practicing pitch sports.RESULTS: The handball group presented full rotational movement (FRM) hi-gher than the control group in both the dominant shoulder (p=0.001) and the non-dominant shoulder (p=0.0001). The mobility of active and passive internal rotation was significantly higher in handball players in both shoulders. The handball group presented lower internal rotation range of motion for the dominant shoulder as compared to the non-dominant shoul-der (p=0.001).CONCLUSION: Young handball practitioners, des-pite skeletally immature, showed a higher MRT than the control group. The handball group showed loss of internal rotation (medial) on the dominant shoulder as compared to the non--dominant shoulder. Level of Evidence II, Prospective Study.

Curved Periacetabular Osteotomy for the Treatment of Dysplastic Hips

Curved periacetabular osteotomy (CPO) was developed for the treatment of dysplastic hips in 1995. In CPO, the exposure of osteotomy sites and osteotomy of the ischium are made in the same manner as Bernese periacetabular osteotomy, and iliac and pubic osteotomies are performed in the same manner as rotational acetabular osteotomy. We studied the dynamic instabilities of 25 dysplastic hips before and after CPO using triaxial accelerometry. Overall magnitude of acceleration was significantly decreased from 2.30 +/- 0.57 m/sec2 preoperatively to 1.55 +/- 0.31 m/sec2 postoperatively. Pain relief and improvement of acetabular coverage resulting from acetabular reorientation seem to be related with reduction of dynamic instabilities of dysplastic hips. Isokinetic muscle strengths of 24 hips in 22 patients were measured preoperatively and after CPO. At 12 months postoperatively, the mean muscle strength exceeded the preoperative values. These results seem to be obtained due to no dissection of abductor muscles in CPO. The preoperative presence of acetabular cysts did not influence the results of CPO. An adequate rotation of the acetabular fragment induced cyst remodeling. Satisfactory results were obtained clinically and radiographically after CPO in patients aged 50 years or older. CPO alone for the treatment of severe dysplastic hips classified as subluxated hips of Severin group IV-b with preoperative CE angles of up to -20degrees could restore the acetabular coverage, weight-bearing area and medialization of the hip joint. CPO without any other combined procedure, as a treatment for 17 hips in 16 patients with Perthes-like deformities, produced good mid-term clinical and radiographic results. We have been performing CPO in conjunction with osteochondroplasty for the treatment of acatabular dysplasia associated with femoroacetabular impingement since 2006. The combined procedure has been providing effective correction of both acetabular dysplasia and associated femoral head-neck deformities without any increased complication rate. We have encountered an obturator artery injury in one case and two intraoperative comminuted fractures. Although serious complications such as motor nerve palsy, deep infection, necrosis of the femoral head or acetabulum, and delayed union or nonunion of the ilium were reported, such complications have never occurred in our 700 cases so far.

Effect of transepicondylar axis of different position on volume rendering technique measuring the humeral head retroversion angle with multi-slice spiral CT / 中国矫形外科杂志

[Objective]To evaluate the effect of transepicondylar axis of different position on volume rendering technique measuring the humeral head retroversion angle with multi slice spiral CT.[Method]Fifty-one dry humerus specimens were scanned with 16 slice spiral CT scanner,At top view the three-group humeral head retroversion angle decided by the transepicondylar axis of different position were measured by volume rendering technique,As to two-dimension CT method,the distal reference axis of the humeral head retroversion angle was defined by three sections of different levels,the total six-group data on humeral head retroversion angle were analyzed by Statistics.[Result]The humeral head retroversion angle ranged from 4? to 59.8?,the humeral head retroversion angle of six groups were(25.5?10.2)?,(25.0?10.8)?,(25.7?10.8)?,(27.3?10.3)?,(26.3?10.2)?,(25.8?10.4)? respectively.The Statistics showed that the results have no significant difference among them.The more distal the humerus was,the smaller humeral head retroversion angle defined by a line between the epicondyles on two-dimension CT method was.[Conclusion]The humeral head retroversion angle is markedly variable,the humeral head retroversion angle of shoulder joint prosthetic design should be individual.The transepicondylar axis of different position has no effect on volume rendering technique measuring the humeral head retroversion angle with multi slice spiral CT.The top view at which lateral epicondyle of the humerus showing mini-triangulum and the anterior surface of the distal humerus articulation with the forearm being shaded is more simple,faster and precise for the volume rendering technique measuring the humeral head retroversion angle with multi slice spiral CT.

Incidence of Acetabular Retroversion in Dysplastic Hip / 대한정형외과학회잡지

PURPOSE: This study analysed the incidence and the degree of an acetabular retroversion in a dysplastic hip. MATERIALS AND METHODS: 28 cases of dysplastic hips, in whom the CE angle was <20 degrees, and 20 cases of control group with a normal CE angle were enrolled in this study. Four cuts among the CT images (most superior cut of the femoral head, middle cut of the proximal half, middle portion, and middle cut of the distal half of the femoral head) were used to measure the acetabular anteversion. RESULTS: In the control group, anteversion of four cuts (form the cranial to caudal) were observed with an average of 4.1, 10.3, 16.5, 19.7degrees, and there was one case with a retroversion. In the dysplastic hips, the average anteversion angles were 4.4, 11.0, 17.9, 20.8degrees, and 9 cases with retroversion were discovered. In all cases showing retroversion, an overlapping of the acetabular anterior and posterior wall (cross-over sign) was observed on the simple pelvis AP radiography. CONCLUSION: There was a 32% incidence of acetabular retroversion, which was much higher than the control group (p<0.05). Therefore, in order to prevent an over-correction of the retroversion, which may cause impingement, the presence and the amount of retroversion must be recognized using CT before performing a periacetabular osteotomy.

Normal Humeral Head Retroversion Angle in Korean Measured with Semil - axial View / 대한정형외과학회잡지

A reduced retroversion angle of humeral head may predispose to recurrent anterior shoulder dislocation and may also be a factor in persistent instability after soft tissue procedures. Rotation osteotomy of proximal humerus is one of many surgical modalities proposed for recurrent anterior shoulder dislocation. To support such an operation, fundamental knowledge of shoulder anatomy is essential. The semi-axial view by Soderlund have been regarded as simple and reliable method for measuring humeral head retroversion angle. The purpose of this study was to evaluate validity of the semi-axial view and to assess reference values for humeral head retroversion angle in Korean. Humeral head retroversion angle was determined from 80 healthy subjects, 48 men and 32 women. Radiographs which shown less than 10degrees between humeral shaft axis and epicondylar axis were defined as acceptable radiographs by Soderlund. Acceptable radiographs were selected and two orthopedic surgeons measured retroversion angle, separately. Acceptable radiographs were obtained in only 70 shoulders (43.8%). The mean angle was 35.2+/-8.24degrees for dominant hand and 32+/-6.27degrees for nondominant in Korean. The mean angle was 35.3+/- 7.78degrees for right side and 31.9+/-6.8degrees for left. The interobserver difference was 2.9degrees. The semi-axial view by Soderlund was not reproducible solely. But if correct arm position is considered, the method presented is easy to use daily.