Reliability and accuracy in radiographic measurements of musculoskeletal tumors

2021 ◽  
Author(s):  
Alec S. Kellish ◽  
Sandra Miskiel ◽  
John Gaughan ◽  
Veniamin Barshay ◽  
Tae W. Kim ◽  
...  
Keyword(s):  
Musculoskeletal Tumors ◽  
Radiographic Measurements

MR staging of malignant musculoskeletal tumors: An experimental study on MR and pathologic correlation of rabbit VX-2 carcinoma

1993 ◽  
Vol 29 (3) ◽  
pp. 507
Author(s):  
Heung Sik Kang ◽  
Sung Hoon Chung ◽  
Cheol Woo Kim ◽  
Seon Moon Kim ◽  
Jung Gi Im ◽  
...  
Keyword(s):  
Experimental Study ◽  
Musculoskeletal Tumors ◽  
Pathologic Correlation

Three-Dimensional Versus Radiographic Measurements for Analyzing Extra-Articular Distal Radius Malunion

2020 ◽  
Vol 45 (10) ◽  
pp. 984.e1-984.e7
Author(s):  
Lionel Athlani ◽  
Audrey Chenel ◽  
Philippe Berton ◽  
Romain Detammaecker ◽  
Gilles Dautel
Keyword(s):  
Distal Radius ◽  
Three Dimensional ◽  
Radiographic Measurements ◽  
Distal Radius Malunion ◽  
Radius Malunion

scholarly journals Primary Musculoskeletal Tumors: Examination with MR Imaging Compared with CT.

1991 ◽  
Vol 39 (4) ◽  
pp. 1718-1721
Author(s):  
Koichiro Yokoyama ◽  
Norio Shinohara ◽  
Ken Wada ◽  
Takeshi Tokito ◽  
Akira Kawasima ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Musculoskeletal Tumors

scholarly journals Frailty as a risk factor for postoperative complications in adult patients with degenerative scoliosis administered posterior single approach, long-segment corrective surgery: a retrospective cohort study

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Bin Li ◽  
Xianglong Meng ◽  
Xinuo Zhang ◽  
Yong Hai
Keyword(s):  
Risk Factor ◽  
Postoperative Complications ◽  
Posterior Approach ◽  
Frailty Index ◽  
Cardiac Complications ◽  
Corrective Surgery ◽  
Degenerative Scoliosis ◽  
Acute Renal Dysfunction ◽  
Radiographic Measurements ◽  
Single Approach

Abstract Background With the population aging worldwide, adult degenerative scoliosis (ADS) is receiving increased attention. Frailty, instead of chronological age, is used for assessing the patient’s overall physical condition. In ADS patients undergoing a posterior approach, long-segment corrective surgery, the association of frailty with the postsurgical outcomes remains undefined. Methods ADS patients who underwent a posterior approach, long-segment fusion at the Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University (CMU), Beijing, China, in 2014–2017 were divided into the frailty and non-frailty groups according to the modified frailty index. Major postoperative complications were recorded, including cardiac complications, pneumonia, acute renal dysfunction, delirium, stroke, neurological deficit, deep wound infection, gastrointestinal adverse events, and deep vein thrombosis. Radiographic measurements and health-related quality of life (HRQOL) parameters were recorded preoperatively and at 2 postoperative years. Results A total of 161 patients were included: 47 (29.2%) and 114 (70.8%) in the frailty and non-frailty groups, respectively. Major postoperative complications were more frequent in the frailty group than the non-frailty group (29.8% vs. 10.5%, P = 0.002). Multivariable logistic regression analysis showed that frailty was independently associated with major complications (adjusted odds ratio [aOR] = 2.77, 95% confidence interval [CI] 1.12–6.89, P = 0.028). Radiographic and HRQOL parameters were improved at 2 years but with no significant between-group differences. Conclusions Frailty is a risk factor for postoperative complications in ADS after posterior single approach, long-segment corrective surgery. Frailty screening should be applied preoperatively in all patients to optimize the surgical conditions in ADS.

scholarly journals Vancouver B and C periprosthetic fractures around the cemented Exeter Stem: sex is associate with fracture pattern

2021 ◽  
Author(s):  
M. F. R. Powell-Bowns ◽  
E. Oag ◽  
D. Martin ◽  
N. D. Clement ◽  
C. E. H. Scott
Keyword(s):  
Multivariate Analysis ◽  
Interobserver Reliability ◽  
Univariate Analysis ◽  
Intraclass Correlation ◽  
Cement Mantle ◽  
Mantle Length ◽  
Periprosthetic Fractures ◽  
Stem Design ◽  
Female Sex ◽  
Radiographic Measurements

Abstract Introduction The aim of this study was to identify factors associated with the level of periprosthetic fracture involving a cemented polished tapered stem: Vancouver B or Vancouver C. Methods A retrospective cohort study of 181 unilateral periprosthetic fractures involving Exeter stems was assessed by three observers (mean age 78.5, range 39–103; mean BMI 27.1, 17–39; 97 (54%) male). Patient demographics, deprivation scores, BMI and time since primary prosthesis were recorded. Femoral diameter, femoral cortical thickness, Dorr classification and distal cement mantle length were measured from calibrated radiographs. Interobserver reliability was calculated using intraclass correlation coefficients (ICCs). Univariate and multivariate analysis was performed to identify associations with Vancouver B or C fractures. Results 160/181 (88%) Vancouver B and 21/181 (12%) Vancouver C-level fractures occurred at a mean of 5.9 ± 5.4 years (0.2–26.5) following primary surgery. Radiographic measurements demonstrated excellent agreement (ICC > 0.8, p < 0.001). Mortality was significantly higher following Vancouver C compared to B fractures: 90 day 14/160 Vs 5/21 (p = 0.05); 1 year 29/160 Vs 8/21 (p = 0.03). Univariate analysis demonstrated that Vancouver C fractures were associated with female sex, bisphosphonate use, cortical bone thickness, and distal cement mantle length (p < 0.05). On multivariate analysis, only female sex was an independent predictor of Vancouver C-level fractures (R2 =0.354, p = 0.005). Conclusion Most PFFs involving the Exeter stem design are Vancouver B-type fractures and appear to be independent of osteoporosis. In contrast, Vancouver C periprosthetic fractures display typical fragility fracture characteristics and are associated with female sex, thinner femoral cortices, longer distal cement mantles and high mortality.

Degenerative Lumbar Spine Disease, Not Fusion, May Be a Risk Factor for Instability after Total Hip Arthroplasty

2020 ◽  
Vol 4 (04) ◽  
pp. 193-200
Author(s):  
Daniel K. Witmer ◽  
Evan R. Deckard ◽  
R. Michael Meneghini
Keyword(s):  
Lumbar Spine ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Spine Fusion ◽  
Joint Disease ◽  
Total Hip ◽  
Female Sex ◽  
Lumbar Spine Fusion ◽  
Radiographic Measurements ◽  
Acetabular Protrusio

AbstractDislocation rates after total hip arthroplasty (THA) in patients with fixed spinopelvic motion have been reported as high as 20%. Few studies exist specifically for lumbar spine degenerative joint disease (DJD) and its relationship to THA instability. There were two study objectives: (1) report the incidence of lumbar spine DJD and previous lumbar spine fusion and (2) evaluate the relationship of these two conditions and other potential risk factors to postoperative dislocation after THA. We retrospectively reviewed 818 consecutive THAs performed by a single surgeon utilizing a posterior approach. Comprehensive medical chart and radiographic review was performed to identify patients with lumbar spine DJD and lumbar spine fusion. Radiographic measurements, patient factors, surgical factors, and incidences of dislocation also were recorded. Eight hundred and twelve THAs were analyzed. There were 10 dislocations (1.2%, 10/812). Lumbar spine DJD and previous lumbar spine fusion occurred in 33.4% (271/812) and 5.9% (48/812) of patients, respectively. Lumbar spine DJD, acetabular protrusio, and female sex were significant predictors of dislocation using a Firth penalized maximum likelihood estimation specifically for rare events (area under receiver-operator characteristic curve = 0.91, 95% confidence interval 0.86, 0.96). Interestingly, only 2 of 10 dislocations had a previous lumbar spine fusion. Lumbar spine DJD, acetabular protrusio, and female sex were significant predictors of dislocation, while lumbar spine fusion was largely unrelated. This study used data available to most practicing surgeons and provides useful information for counseling patients preoperatively.

Standing radiographic measurements vs force plate gait analysis of moderate gonarthrosis

1989 ◽  
Vol 22 (10) ◽  
pp. 1087
Author(s):  
Ola K. Svensson ◽  
Lars Weidenhielm ◽  
Lars-Åke Broström ◽  
Jan Ekholm
Keyword(s):  
Gait Analysis ◽  
Force Plate ◽  
Radiographic Measurements

Dynamic contrast-enhanced MR imaging of musculoskeletal tumors: Basic principles and clinical applications

1996 ◽  
Vol 6 (2) ◽  
pp. 311-321 ◽  
Author(s):  
Koenraad L. Verstraete ◽  
Henk-Jan Van der Woude ◽  
Pancras C. W. Hogendoorn ◽  
Yves De Deene ◽  
Marc Kunnen ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Clinical Applications ◽  
Basic Principles ◽  
Musculoskeletal Tumors ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced

Radiographic measurements of dysplastic adult hips

1997 ◽  
Vol 26 (2) ◽  
pp. 75-81 ◽  
Author(s):  
S. Delaunay ◽  
R. G. Dussault ◽  
P. A. Kaplan ◽  
B. A. Alford
Keyword(s):  
Radiographic Measurements
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