共查询到10条相似文献，搜索用时 234 毫秒
1.
Catarina N. Damas Joana Silva Márcia C. Sá João Torres 《European journal of orthopaedic surgery & traumatology : orthopedie traumatologie》2016,26(2):127-132
Background
Healthy shoulder morphology is still unclear. Since bone morphology influences prosthetic features, this is relevant for glenohumeral joint reconstruction. The objective of this study was to assess the normal values of glenoid version, maximum width, base width and vault depth on computed tomography scans.Methods
Axial cut CT scans of 1072 healthy glenoids were retrospectively reviewed. Values of glenoid version, maximum glenoid width, glenoid base width and glenoid vault depth were measured by two different observers. Differences were determined between genders, and reproducibility and interrater reliability assessed.Results
Glenoid version was 37.71° ± 10.75°, range ?6.20° to 71.30°; maximum glenoid width was 26.06 ± 3.27 mm, range 15.40–36.90 mm; glenoid base width was 16.59 ± 2.61 mm, range 8.90–25.40 mm; glenoid vault depth was 9.72 ± 1.62 mm, range 4.70–15.90 mm. All measurements except for glenoid version were significantly higher in males than in females. Reproducibility was good for every measurement, except glenoid vault depth.Conclusion
We found differences in maximum glenoid width, base width and vault depth by gender in a large sample. Glenoid components’ maximum width was defined, as was reaming extension and orientation, the space available for implantation of the glenoid component, placement of pegs or keels in anatomic prostheses and the target for glenoid screws in inverted prostheses.Level of evidence
II.2.
Raju Vaishya Vipul Vijay Edwin O. Edomwonyi Amit K. Agarwal 《Journal of Clinical Orthopaedics and Trauma》2018,9(2):112-115
Purpose
We undertook this study to determine whether it is justifiable to use a fixed femoral valgus angle in patients undergoing TKR.Method
134 knees (59 females and 19 males) were studied by measuring their femoral valgus angle (FVA) on CT scan and the data was assessed statistically.Result
The average FVA was 5.83° ± 0.64 (range – 4–7.5°). There was no statistically significant difference (p > 0.05) between the FVA between males and females and as per age.Conclusion
We conclude that it is justifiable to use a fixed femoral valgus cutting angle in the patients undergoing total knee replacement. 相似文献3.
Grace C. Kunas William Probasco Amgad M. Haleem Jayme C. Burket Emilie R.C. Williamson Scott J. Ellis 《Foot and Ankle Surgery》2018,24(6):495-500
Background
The aim of this study was to assess the inferior talus-superior talus (inf-tal-sup-tal) angle (previously proven reliable in multiplanar-weight bearing imaging (MP-WB)) on both computed tomography (CT) and MP-WB scans. We sought to compare the angle between the two modalities in both AAFD and control groups, as well as to compare the groups to each other.Methods
Inf-tal-sup-tal angles were compared between a stage II AAFD group (n = 38) with routine MP-WB and CT scans and a control group (n = 20) with preoperative CT scans for lisfranc injuries and normal hindfoot alignment after healing.Results
The CT inf-tal-sup-tal angle was significantly greater in AAFD compared to control (AAFD, 12 ± 6; control, 5 ± 4; p < 0.001), but was even greater with MP-WB. There was no significant correlation between inf-tal-sup-tal angles on MP-WB and CT (Pearson’s = 0.29, p = 0.08).Conclusions
MP-WB imaging proved to be correlated more strongly with AAFD than CT by revealing greater hindfoot valgus. This confirmed that CT scans are useful in predicting AAFD, but cannot be used as a surrogate for MP-WB scans. 相似文献4.
Anwar R. Padhani Frederic E. Lecouvet Nina Tunariu Dow-Mu Koh Frederik De Keyzer David J. Collins Evis Sala Heinz Peter Schlemmer Giuseppe Petralia H. Alberto Vargas Stefano Fanti H. Bertrand Tombal Johann de Bono 《European urology》2017,71(1):81-92
Context
Comparative reviews of whole-body magnetic resonance imaging (WB-MRI) and positron emission tomography/computed tomography (CT; with different radiotracers) have shown that metastasis detection in advanced cancers is more accurate than with currently used CT and bone scans. However, the ability of WB-MRI and positron emission tomography/CT to assess therapeutic benefits has not been comprehensively evaluated. There is also considerable variability in the availability and quality of WB-MRI, which is an impediment to clinical development. Expert recommendations for standardising WB-MRI scans are needed, in order to assess its performance in advanced prostate cancer (APC) clinical trials.Objective
To design recommendations that promote standardisation and diminish variations in the acquisition, interpretation, and reporting of WB-MRI scans for use in APC.Evidence acquisition
An international expert panel of oncologic imagers and oncologists with clinical and research interests in APC management assessed biomarker requirements for clinical care and clinical trials. Key requirements for a workable WB-MRI protocol, achievable quality standards, and interpretation criteria were identified and synthesised in a white paper.Evidence synthesis
The METastasis Reporting and Data System for Prostate Cancer guidelines were formulated for use in all oncologic manifestations of APC.Conclusions
Uniformity in imaging data acquisition, quality, and interpretation of WB-MRI are essential for assessing the test performance of WB-MRI. The METastasis Reporting and Data System for Prostate Cancer standard requires validation in clinical trials of treatment approaches in APC.Patient summary
METastasis Reporting and Data System for Prostate Cancer represents the consensus recommendations on the performance, quality standards, and reporting of whole-body magnetic resonance imaging, for use in all oncologic manifestations of advanced prostate cancer. These new criteria require validation in clinical trials of established and new treatment approaches in advanced prostate cancer. 相似文献5.
Yugal Karkhur Anurag Tiwari Lalit Maini Vivek Bansal Abhimanyu Kakralia 《Journal of Clinical Orthopaedics and Trauma》2018,9(4):334-337
Background
Pelvic fractures represent one of the most challenging clinical problems in which an urgent multidisciplinary approach is required. The early management in a suspected pelvic fracture starts with the good radiological evaluation. The standard radiographic view includes the anteroposterior, inlet and outlet views. The inlet and outlet views are taken with 45° tilt from anteroposterior plane. However, recent studies have shown that there is significant individual variation within the population and these values should be redefined.Material and Methods
This is a retrospective study carried out in a tertiary care teaching institute. Total 110 patients (including 42 female and 68 male patients) of age older than 18 years, who had a routine pelvic Computed Tomography (CT) scan performed for any indications unrelated to pelvic pathologies were included.Statistical analysis
Mean and standard deviation were calculated. For each angle measured, the effect of age was determined and a comparison was made between male and female patients, p value <0.05 is considered significant.Results
The mean angle of caudal tilt for the ideal screening inlet view was 33° +/?8 (16.3–31.3) and the mean angle of cephalic tilt for the ideal screening outlet view was 56° +/?9 (51.6–81.8).Conclusion
This study re-evaluated the optimal inlet and outlet angles in Indians and demonstrated that the mean angles needed to create an ideal pelvic inlet and outlet views are 33° and 56° respectively. 相似文献6.
Hristo Ivanov Piponov David Savin Neal Shah Domenic Esposito Brian Schwartz Vincent Moretti Benjamin Goldberg 《International orthopaedics》2016,40(11):2347-2353
Introduction
Variations in glenoid morphology among patients of different gender, body habitus, and ethnicity have been of interest for surgeons. Understanding these anatomical variations is a critical step in restoring normal glenohumeral structure during shoulder reconstruction surgery.Methods
Retrospective review of 108 patient shoulder CT scans was performed and glenoid version, AP diameter and height were measured. Statistical multiple regression models were used to investigate the ability of gender and ethnicity to predict glenoid AP diameter, height, and version independently of patient weight and height.Results
The mean glenoid AP diameter was 24.7?±?3.5, the mean glenoid height was 31.7?±?3.7, and the mean glenoid version was 0.05?±?9.05. According to our regression models, males would be expected to exhibit 8.4° more glenoid retroversion than females (p?=?0.003) and have 2.9 mm larger glenoid height compared to females (p?=?0.002). The predicted male glenoid AP diameter was 3.4 mm higher than that in females (p?<?0.001). Hispanics demonstrated 6.4° more glenoid anteversion compared to African-Americans (p?=?0.04). Asians exhibited 4.1 mm smaller glenoid AP diameters than African-Americans (p?=?0.002). An increase of 25 kg in patient weight resulted in 1 mm increase in AP diameter (p?=?0.01).Conclusions
Gender is the strongest independent predictor of glenoid size and version. Males exhibited a larger size and more retroverted glenoid. Patient height was found to be predictive of glenoid size only in patients of the same gender. Although variations in glenoid size and version are observed among ethnicities, larger sample size ethnic groups will be necessary to explore the precise relations. Surgeons should consider gender and ethnic variations in the pre-operative planning and surgical restoration of the native glenohumeral relationship.Level of Evidence: Anatomic Study7.
N. Martinelli A. Giacalone A. Bianchi M. Hosseinzadeh C. Bonifacini F. Malerba 《Foot and Ankle Surgery》2018,24(3):205-207
Background
The aim of this study was to assess clinical and radiological outcomes in patients who underwent distal Akin osteotomy for hallux valgus interphalangeus (HVI).Methods
A series of 15 consecutive patients (17 feet) was retrospectively reviewed. All the patients were preoperatively and post-operatively evaluated with a physical and radiographic assessment (HVI angle). Satisfaction has been assessed through a satisfaction survey, the scale used consisted in three possible choice: very satisfied, satisfied, not satisfied.Results
Among 15 patients the 52.9% (9 patients) stated to be “very satisfied”, the 41.2% (7 patients) “satisfied” and just a 5.9% (one patient) was “not satisfied”.The mean HVI value decreased from 24.9° ± 7.8° preoperatively to 13.1° ± 5.8° postoperatively at last follow up (p < 0.05).Conclusions
Based on these findings we can conclude that the distal Akin osteotomy can be considered safe and effective in the surgical correction of symptomatic HVI deformities. 相似文献8.
A.M. Tawfeek D. Mostafa M.A. Mahmoud A. Radwan I.H. Hamza 《The African Journal of Urology》2018,24(1):73-78
Introduction
Bladder cancer is the second most common genitourinary malignancy. Recent technological advances have led to the development of virtual endoluminal internal views similar to those obtained with conventional endoscopy (virtual cystoscopy).Objectives
To evaluate the potential value of virtual cystoscopy in the detection and follow up of bladder tumors.Patients and methods
A total of 50 patients from Ain Shams University Hospital were studied between August 2012 and April 2014 at Ain Shams’ Radiology Department and Sonoscan Radiology Center. All patients underwent 2D-US, 3D virtual sonographic cystoscopy and conventional cystoscopy, with results compared for sensitivity and specificity in correlation with the site, size and shape of the tumor.Results
3D virtual cystoscopy showed a sensitivity of 96.5%; while its specificity in identifying lesions was 85.7%; positive predictive values were 96.5%; negative predictive value were 85.7%. The sensitivity of the 2D ultrasound was 77.2%; while its specificity in identifying lesions was 57.1%; positive predictive values came at 88%; negative predictive value were 38.1%. Calculations were made taking into consideration the conventional cystoscopy “gold standard”.Conclusion
Additional to lower costs and no radiation exposure, 3D sonography appears comparable to the use of CT scans and MRI in providing virtual cystoscopy in investigating bladder cancer. Virtual sonographic cystoscopy may therefore be a useful alternative for screening and follow up of tumors, particularly if conventional cystoscopy cannot be performed. However, 3D sonography cannot replace pathological staging, and there is still a need to further improve this technology for enhanced assessment of mucosal abnormalities. 相似文献9.
Background
The purpose of this retrospective study was to evaluate the clinical and radiological results of hallux valgus surgery using a plantar locking plate.Methods
Proximal oblique metatarsal osteotomy combined with distal soft tissue treatment was performed in 59 adult patients (68 feet) with hallux valgus, using an anatomically pre-contoured plantar locking plate for fixation of the osteotomy. The median age was 64.0 years and the median follow-up period was 16.5 months.Results
The mean JSSF scale improved significantly from 56.0 points preoperatively to 95.8 points postoperatively. The mean intermetatarsal angle and hallux valgus angle decreased from 16.4° and 41.8° preoperatively to 4.2° and 10.8° postoperatively, respectively. The mean inclination angle was 19.9° preoperatively and 20.5° postoperatively. Removal of hardware was needed in 2 feet (2.9%).Conclusions
Proximal oblique metatarsal osteotomy is an effective method for relief of pain and improvement of function in correction of hallux valgus deformity. Use of a plantar locking plate provides sufficient maintenance of the correction, and complications associated with the hardware are rare. 相似文献10.
Miquel Félez Nuria Grau Antonia Ruiz Encarna Guardiola Carles Sanjuas Cristina Estirado Maribel Navarro-Muñoz Antoni Pascual Mauricio Orozco-Levi Joaquim Gea 《Archivos de bronconeumologia》2018,54(5):255-259