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Hip radiograph image evaluation

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https://www.readbyqxmd.com/read/29349968/-clinical-outcomes-of-total-hip-arthroplasty-using-wagner-sl-revision-stem-in-femoral-intertrochanteric-fractures-for-patients-with-old-fracture-or-painful-arthritis-before-injury
#1
Xian-Wu Chen, Ru-Qing Ye, Hai-Ping Xu
OBJECTIVE: To retrospectively study the clinical results of total hip arthroplasty(THA) using Wagner SL revision stem for patients with femoral intertrochanteric fracture. METHODS: From 2006 January to 2009 December, 29 consecutive patients with femoral intertrochanteric fractures were performed THA using Wagner SL revision stem and intertrochanteric reconstruction, including 18 males and 11 females with an average age of 49 years old ranging from 43 to 58. Among them, 8 cases were oboslete femoral intertrochanteric fractures and 21 cases were the intertrochanteric fractures with painful arthritis before injuries...
March 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29329902/impact-of-vertical-and-horizontal-malrotation-on-measurements-of-anteroposterior-radiographs-of-the-scapula-need-for-standardized-images-in-modern-omometry
#2
Samy Bouaicha, Armando Hoch, Thorsten Jentzsch, Beat K Moor
BACKGROUND: An increasing number of parameters measured on anteroposterior radiographs are used for the evaluation of the bony geometry of the scapula. Inhomogeneous acquisition of images is common because of the lack of standardization in radiographic positioning. Images with malrotation around the horizontal axis of the scapula are particularly frequent. We hypothesized that malrotated images would result in large variations in measured radiographic parameters and that image standardization using qualitative and semiquantitative "omometric" criteria would decrease these variations in measurements...
January 9, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29289395/modified-false-profile-radiograph-of-the-hip-provides-better-visualization-of-the-anterosuperior-femoral-head-neck-junction
#3
Penny R Atkins, Evangeline F Kobayashi, Andrew E Anderson, Stephen K Aoki
PURPOSE: The purpose of this study was to quantify the amount of internal femur rotation required to visualize the 12 to 3 o'clock positions of the femoral head-neck junction as seen on the false-profile radiograph. METHODS: Computed tomography (CT) images of the femur were retrospectively reviewed from control subjects and cam femoroacetabular impingement (FAI) patients. Using an automatically determined clockface, the positions between 12 and 3 o'clock were determined...
December 27, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29250499/utility-of-radiographs-computed-tomography-and-three-dimensional-computed-tomography-pelvis-reconstruction-for-identification-of-acetabular-defects-in-residency-training
#4
Johannes F Plate, John S Shields, Maxwell K Langfitt, Michael P Bolognesi, Jason E Lang, Thorsten M Seyler
Purpose: The Paprosky classification system of acetabular defects is complex and its reliability has been questioned. The purpose of this study was to evaluate the effectiveness of different radiologic imaging modalities in classifying acetabular defects in revision total hip arthroplasty (THA) and their value of at different levels of training. Materials and Methods: Bone defects in 8 revision THAs were classified by 2 fellowship-trained adult reconstruction surgeons...
December 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/29218683/comparison-of-mri-ct-dunn-45%C3%A2-and-dunn-90%C3%A2-alpha-angle-measurements-in-femoroacetabular-impingement
#5
Kevin M Smith, Brayden J Gerrie, Patrick C McCulloch, David M Lintner, Joshua D Harris
PURPOSE: To determine if a significant difference existed among alpha angle measurements between 4 imaging techniques, axial oblique CT and MRI, Dunn 45° and Dunn 90° plain radiographs, in patients with symptomatic cam femoroacetabular impingement (FAI) and labral tear. METHODS: A single-surgeon prospective radiographic analysis of consecutive non-arthritic and non-dysplastic patients with symptomatic FAI and labral tears who underwent surgery was performed. Alpha angle was measured using standard techniques as described by Nötzli...
December 4, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29212435/adhesive-capsulitis-of-the-hip
#6
Hee Joong Kim, Jeong Joon Yoo, Hong Suk Kwak, Hyung Jun Jeong, Min Nyeon Kim, Wonyeong Seo
PURPOSE: Adhesive capsulitis of the hip (ACH) is not a well-defined disease entity. We evaluated the change in the clinical features of patients whose chief complaint was inability to sit cross-legged on the floor. All patients had painful limitation in hip joint motion. Based on the diagnosis of ACH, active stretching exercise (ASE) was recommended. METHODS: In February 2013 and June 2014, a total of 44 patients (50 hips), who visited outpatient clinic in 2011, were evaluated by telephone interviews...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29209742/the-prevalence-and-risk-factors-for-delayed-union-of-the-superior-pubic-ramus-at-one%C3%A2-year-after-curved-periacetabular-osteotomy-its-risk-factor-and-outcome
#7
Ayumi Matsunaga, Shunsuke Akiho, Koichi Kinoshita, Masatoshi Naito, Takuaki Yamamoto
PURPOSE: Curved periacetabular osteotomy (CPO) has been developed for the treatment of acetabular dysplasia. While several studies have reported its good clinical results, the complications of CPO include delayed union and nonunion of the superior pubic ramus. The purpose of this study is to investigate the prevalence of delayed union of the pubis one year after CPO, and to determine the risk factors for this complication. METHODS: The study examined 113 hips that underwent CPO between 2008 and 2012...
December 5, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29206797/instability-of-the-hip-joint-after-posterior-acetabular-wall-fracture-independent-risk-factors-remain-elusive
#8
Jay H Patel, Berton R Moed
BACKGROUND: Exact determinants of hip instability have not been established for fractures of the posterior wall of the acetabulum involving ≤50% of the wall. Therefore, examination of the hip under anesthesia (EUA) is routinely performed. Recently, the superior exit point of the fracture has been reported to be an important identifiable risk factor. Pre-existing adult hip dysplasia (developmental dysplasia of the hip [DDH]) is thought to have a similar role. The purpose of this study was to determine if any known radiographic measurements and signs associated with DDH, or any fracture characteristics, are independent risk factors for hip instability after fracture of the posterior wall of the acetabulum...
December 6, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29204482/corrosion-and-adverse-local-tissue-reaction-after-total-hip-arthroplasty-with-a-modular-titanium-alloy-femoral-neck
#9
Colin D Canham, Pavel I Muradov, Jordan B Simpson, Stephen J Incavo
This report describes a case of mechanically assisted crevice corrosion and secondary adverse local tissue reaction in a patient following a total hip arthroplasty, utilizing a modular neck (bi-modular) femoral component. Radiographic evaluation demonstrated a well-positioned, stable, cementless arthroplasty. Upon further evaluation, the patient had elevated serum cobalt and chromium levels, and magnetic resonance imaging demonstrated a periprosthetic pseudotumor. Corrosion of both the neck-stem and head-neck junctions was suspected...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29164381/assessment-of-micro-dose-biplanar-radiography-in-lower-limb-measurements-in-children
#10
Héloïse Lerisson, Élisa Amzallag-Bellenger, Aurélie Cebulski-Delebarre, Eric Nectoux, Geoffrey Desmulliez, Alain Duhamel, Elodie Drumez, Bernard Herbaux, Nathalie Boutry
OBJECTIVES: To evaluate in children microdose protocol compared with low dose for lower limb alignment (LLA) measurements on biplanar radiography. METHODS: Children 6 years or older were included. Height, weight and hip width were measured prior to imaging. Hip width allowed classifying children into morphotype M1 (width <25 cm), M2 (25-35 cm) or M3 (>35 cm) corresponding to predefined acquisition parameters (kV, mA, tube speed). Micro- and low-dose protocols were used alternately, with simultaneous acquisition of frontal and lateral radiographs...
November 21, 2017: European Radiology
https://www.readbyqxmd.com/read/29157629/mri-appearance-in-the-early-stage-of-legg-calv%C3%A3-perthes-disease-to-predict-lateral-pillar-classification-a-retrospective-analysis-of-the-labral-horizontalization
#11
Yasuhiro Shirai, Kenjiro Wakabayashi, Ikuo Wada, Yoshiaki Tsuboi, Myongsu Ha, Takanobu Otsuka
BACKGROUND: The Herring lateral pillar classification is widely used for the classification of Legg-Calvé-Perthes disease, but is not applied at the early stage of Legg-Calvé-Perthes disease because it is typically applied at the late fragmentation stage. The purpose of this study was to investigate the correlation between the early appearance on magnetic resonance imaging of the acetabular labrum and lateral pillar involvement in Legg-Calvé-Perthes disease. METHODS: Non-contrast magnetic resonance images of 26 hips in 25 children with early-stage Legg-Calvé-Perthes disease were retrospectively reviewed...
November 17, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29151233/clinical-results-of-hemiarthroplasty-using-new-bipolar-cups-for-stage-3-or-lower-osteonecrosis-of-the-femoral-head-a-retrospective-study
#12
T Abe, N Kaku, T Tabata, H Tagomori, H Tsumura
PURPOSE: The aim of this study was to evaluate clinical and radiographic findings of stage 3 or lower osteonecrosis of the femoral head (ONFH) with intact acetabular cartilage in patients treated with bipolar hemiarthroplasty (BHA). METHODS: A total of 79 hips that underwent BHA for ONFH were included in this study. The average observation period was 7.6 years. Clinical results were evaluated using the Harris hip score. We performed radiographic analysis to assess the migration of the outer cup, the permanent image around the outer cup, and loosening of the stem...
November 18, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/29145281/cup-revision-involving-retention-of-a-fixed-but-malpositioned-acetabular-component-in-patients-with-poor-general-conditions
#13
Weiping Su, Min Zeng, Yihe Hu, Jianxi Zhu, Long Wang, Jie Xie
This study evaluated the surgical technique and outcomes of cup revision involving retention of a fixed but malpositioned acetabular component in patients with poor general conditions.Between 2007 and 2013, we performed cup revision on 12 hips while retaining a fixed (either cemented or uncemented) but malpositioned acetabular component. Indications for this technique were: malpositioned but fixed acetabular shell; sufficient space for the insertion of the prosthesis; and patients with poor general conditions...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29114626/postarthroscopy-imaging-in-femoroacetabular-impingement-persistent-pain-may-be-due-to-an-insufficient-correction-of-preoperative-abnormalities
#14
Cosimo Tudisco, Salvatore Bisicchia, Sandro Tormenta, Amedeo Taglieri, Ezio Fanucci
Purpose  The purpose of this study was to evaluate the effect of correction of abnormal radiographic parameters on postoperative pain in a group of patients treated arthroscopically for femoracetabular impingement (FAI). Methods  A retrospective study was performed on 23 patients affected by mixed-type FAI and treated arthroscopically. There were 11 males and 12 females with a mean age of 46.5 (range: 28-67) years. Center-edge (CE) and α angles were measured on preoperative and postoperative radiographic and magnetic resonance imaging (MRI) studies and were correlated with persistent pain at follow-up...
March 2017: Joints
https://www.readbyqxmd.com/read/29104842/concurrent-multiple-myeloma-and-metastatic-osteosarcoma-a-case-report-and-literature-review
#15
Ashley Ramirez, Vincent Grekoski, Michael Valente, Fiona Tissavirasingham, Alessandra Fahey, Nicole Guevara, John W Stelzer, M Joe Ma, Jeremy Burt
Multiple myeloma (MM) and osteosarcoma (OS) are two common bone malignancies, however, the simultaneous occurrence of both primary bone tumors in the same patient has not been reported in the United States to date. We present a unique case in which both malignancies present concurrently in a 72-year-old man. Results of spinal magnetic resonance imaging (MRI), radiographic skeletal survey, and hematological workup established the initial diagnosis of MM. Approximately three months later, the patient was admitted with severe right hip pain and shortness of breath and was evaluated with computed tomography (CT) of the right hip, abdomen, pelvis, and chest, revealing an osseous mass with a "sunburst" pattern in the right hip, and several calcified nodules in the lungs...
August 31, 2017: Curēus
https://www.readbyqxmd.com/read/29100768/computed-tomography-scans-in-patients-with-young-adult-hip-pain-carry-a-lifetime-risk-of-malignancy
#16
James D Wylie, Peter A Jenkins, James T Beckmann, Christopher L Peters, Stephen K Aoki, Travis G Maak
PURPOSE: To calculate the lifetime risk of malignancy in young adult patients with hip pain using 5 different imaging and radiation dose protocols with or without pre- and postoperative computed tomography (CT). METHODS: Radiographic and CT patient radiation doses were retrospectively reviewed. Imaging protocols for hip pain composed of radiographs with or without pre- and postoperative CT scans were modeled and radiation doses were estimated using the PCXMC computer code...
October 31, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29066106/quantitative-effect-of-pelvic-position-on-radiographic-assessment-of-acetabular-component-position
#17
Dimitri E Delagrammaticas, Hasham M Alvi, Aaron J Kaat, Ryan R Sullivan, Michael D Stover, David W Manning
BACKGROUND: Intraoperative fluoroscopy aims to improve component position in total hip arthroplasty. Measurement bias related to image quality, however, has not been quantified. We aim to quantify measurement bias in the interpretation of acetabular component position as a function of pelvis and fluoroscopic beam position in a simulated supine total hip arthroplasty model. METHODS: Posterior-anterior pelvis and hip images were obtained using a previously described pelvic model with known acetabular component position...
September 25, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29018910/incidence-of-delayed-union-one%C3%A2-year-after-peri-acetabular-osteotomy-based-on-computed-tomography
#18
Shunsuke Akiho, Koichi Kinoshita, Ayumi Matsunaga, Satohiro Ishii, Hajime Seo, Jun Nishio, Takuaki Yamamoto
BACKGROUND: Pubic bone nonunion and delayed union are reported as post-operative complications after peri-acetabular osteotomy (PAO). However, few studies have determined the incidence of delayed union using computed tomography (CT) scans. This study aimed to determine the incidence of delayed union at one year after PAO using X-ray and CT scans. METHODS: We performed a retrospective review of 150 hips in 132 consecutive patients with acetabular dysplasia who underwent PAO between January 2012 and June 2016 and evaluated 107 hips for which pelvic CT scans taken at one year after PAO were available...
October 10, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28972793/potential-discrepancy-between-plain-films-and-ct-scans-in-brooker-classification-of-heterotopic-ossification
#19
Tao Mary Jiayi, Probyn Linda, Poon Michael, Kreder Hans, Nousiainen Markku, Jenkinson Richard, Wan Bo Angela, Tsao May, Barnes Elizabeth, Chow Edward
OBJECTIVES: The Brooker classification is a commonly used tool to characterize the extent of heterotopic ossification (HTO), which is the dystrophic formation of mature lamellar bone in non-osseous tissues such as muscles, connective tissue or nerves. We aim to provide illustrative cases to describe the limitations and challenges of this system. METHODS: A retrospective review was conducted in all patients who had retrieved hip and/or pelvic radiotherapy for HTO prophylaxis at Sunnybrook Health Sciences Centre between July 1998 and August 2016...
December 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28971082/open-versus-arthroscopic-approach-in-the-treatment-of-femoroacetabular-impingement-a-case-control-study-with-two-years-follow-up
#20
Bruno Dutra Roos, Milton Valdomiro Roos, Antero Camisa Júnior, Ezequiel Moreno Ungaretti Lima, Maurício Domingos Betto
OBJECTIVE: To compare clinical and imaging results and complications between patients treated for femoroacetabular impingement (FAI) who underwent either anterior open surgery or an arthroscopic approach, with a minimum follow-up of two years. METHODS: This retrospective case-control study included patients submitted to FAI surgical treatment between November 2007 and March 2012. Patients treated with open surgery were compared with those treated with arthroscopy...
2017: Revista Brasileira de Ortopedia
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