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https://www.readbyqxmd.com/read/28630841/bipolar-hemiarthroplasty-in-a-patient-with-above-knee-amputation-surgical-technique
#1
Ramesh Perumal, Santhosh Ram Gaddam, J Vasudeva, J Dheenadhayalan, S Rajasekaran
INTRODUCTION: Femoral neck fractures are a common occurrence in lower limb amputees. Good post-operative results of hip hemiarthroplasty have been described in below-knee amputees. However, to our knowledge, very few such cases have been reported in above-knee amputees. CASE REPORT: We present a case of a 75-year-old male patient who underwent above-knee amputation of the right lower limb for severe crush injury right leg and a bipolar hemiarthroplasty for an ipsilateral fracture neck of femur sustained in the same road traffic accident...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28622117/periprosthetic-femoral-fractures-in-the-emergency-department-what-the-orthopedic-surgeon-wants-to-know
#2
Richard A Marshall, Michael J Weaver, Aaron Sodickson, Bharti Khurana
Femoral fracture in the setting of a hip arthroplasty is an increasingly common complication encountered in the emergency department (ED). Diagnosis and management of periprosthetic fractures are complicated, and orthopedic surgeons rely on imaging findings to guide the appropriate management approach to the injury. Delay in identification and appropriate definitive management of periprosthetic fractures is associated with high morbidity and mortality. At present, the Vancouver classification system for periprosthetic hip fractures is the most common classification system used by orthopedic surgeons...
June 16, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28616704/metallic-ion-release-after-knee-prosthesis-implantation-a-prospective-study
#3
Adrien Lons, Sophie Putman, Gilles Pasquier, Henri Migaud, Elodie Drumez, Julien Girard
INTRODUCTION: Metal-on-metal (MoM) hip replacement bearings produce metallic ions that can cause health complications. Metallic release also occurs with other materials, but data on metallic ion levels after knee arthroplasty are sparse. We postulate that knee replacement generates elevating metallic ions (chromium (Cr), cobalt (Co) and titanium (Ti)) during the first year after implantation. PATIENTS AND METHODS: This ongoing prospective study included all patients who underwent the same type of knee arthroplasty between May and December 2013...
June 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28602534/bilateral-total-hip-and-knee-arthroplasties-average-10-year-follow-up
#4
John B Meding, Philip M Faris, Ken E Davis
BACKGROUND: The present study investigates the clinical and radiographic outcomes in patients with all 4 major lower extremity joints replaced. METHODS: A retrospective review of our institution's database identified 125 patients in whom both hips and both knees were replaced. The mean time between the first and last arthroplasty was 6.6 years. Preoperative diagnoses included osteoarthritis in 80% and rheumatoid arthritis in 20%. The average age at the time of the first arthroplasty was 63...
May 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28602531/outcomes-of-hip-arthroplasty-after-failed-hip-arthroscopy-a-case-control-study
#5
Simon J M Parker, George Grammatopoulos, Owain L I Davies, Karen Lynch, Tom C B Pollard, Antonio J Andrade
BACKGROUND: Hip arthroscopy is increasingly being used in joint preservation surgery with clear benefits in the treatment of prearthritic conditions. A number of patients, however, will still go on to require subsequent hip arthroplasty, and at present, little evidence exists determining the impact that prior hip arthroscopy may have on the outcomes of a subsequent arthroplasty. METHODS: Using prospectively collated data, we identified 35 patients who had a hip arthroplasty (22 total hip arthroplasties and 13 hip resurfacing arthroplasties) after prior ipsilateral hip arthroscopy (cases)...
May 18, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28602486/supramacroparticulate-pe-in-6-different-joint-endoprostheses-localisations-an-indicator-for-pe-damage
#6
Simon Krenn, Marc Thomsen, Sylvia Usbeck, Leslie F Scheuber, Friedrich Boettner, Manfred Georg Krukemeyer, Monika Huber, Jan Philippe Kretzer, Thorsten Gehrke, Veit Krenn
In the histopathological particle algorithm polyethylene (PE) particles with maximum lengths of more than 100μm - called PE supramacroparticles - are identified exclusively for knee joint and hip prostheses. However, a definitive characterisation, detection in all joint localisations and a causal clarification of the pathogenesis are lacking. In this study a total of 175 SLIM (synovial-like interface membrane) cases with PE supramacroparticles of knee joint prostheses (n=89), hip joint prostheses (n=44), ankle joint prostheses (n=36) and prostheses in three localisations of the upper extremities (n=6) were systematically investigated...
March 31, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28591963/-extensively-porous-coated-distal-fixation-long-stem-prosthesis-for-unstable-proximal-femur-fracture-with-complex-hip-disease
#7
Song Hong, Jia-Sheng Lin, Yong Zhou, Chang Zou, Wen-Li Zhang, Hong Duan, Chong-Qi Tu
OBJECTIVES: To evaluate the clinical results of femoral proximal fracture with complex hip diseases using an uncemented extensively porous-coated long femoral stems. METHODS: 15 cases of femoral proximal fracture with complex hip diseases treated with the uncemented extensively porous-coated long femoral stem were retrospectively reviewed. All patients were followed up at 1, 3, 6, 12 months in the first year postoperatively and once a year from the second year on...
July 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28589052/safe-and-effective-reduction-technique-for-intertrochanteric-fracture-with-ipsilateral-below-knee-amputated-limb
#8
Hironori Ochi, Tomonori Baba, Takahiro Hamanaka, Yu Ozaki, Taiji Watari, Yasuhiro Homma, Mikio Matsumoto, Kazuo Kaneko
The positioning of the patient on the fracture table is critical for the successful reduction and operative fixation of intertrochanteric hip fractures. However, this manipulation is challenging with patients who have undergone amputations of their legs. A 97-year-old man presented to the emergency department with symptom of right hip pain following a mechanical fall. He had a below-knee amputation on his right leg following a traffic accident as a 19-year-old and had a below-knee patellar tendon bearing prosthesis fitted to his lower limb for mobility...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28585795/-decolonization-for-staphylococcus-aureus-carriers-in-arthroplasty-surgery-after-hip-fracture
#9
J M Barbero, J Romanyk, A Vallés, M A Plasencia, E Montero, J López
OBJECTIVE: Staphylococcus aureus is the main causative agent of joint prosthesis infections. The decolonization of the carriers is effective in the prevention of the infections of the elective arthroplasties. The aim of this study is to evaluate if it is also in arthroplasties after hip fracture. METHODS: Study in patients with hip fracture who underwent joint prosthesis from January 2011 to December 2015 with a protocol of S. aureus detection-decolonization with intranasal mupirocin and chlorhexidine baths...
June 5, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28583059/mid-term-results-of-the-sl-plus-femoral-prosthesis-the-influence-of-femoral-bone-type
#10
Iori Takigami, Yoshiki Ito, Kazu Matsumoto, Nobuo Terabayashi, Takaki Miyagawa, Haruhiko Akiyama
BACKGROUND: Cementless fixation of the femoral stem has been shown to be durable and predictable in total hip arthroplasty (THA), primarily as a result ofrecent improvements in prosthesis geometry and porous surface. Although patients with osteoporotic bone have been considered poor candidates for the use of a cementless femoral component, some recent studies have indicated satisfactory results. However, the indications and selection criteria of cementless stems based on the morphology of the femoral canal have not been established...
April 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/28580792/biomechanical-analysis-of-the-universal-2-implant-in-total-wrist-arthroplasty-a-finite-element-study
#11
M K Gislason, E Foster, M Bransby-Zachary, D H Nash
Little is known about the mechanics of in vivo loading on total wrist prostheses where many studies have looked at the mechanics of other types of arthroplasty such as for the hip and the knee which has contributed to the overall success of these types of procedures. Currently surgeons would prefer to carry out arthrodesis on the wrist rather than consider arthroplasty as clinical data have shown that the outcome of total wrist arthroplasty is poorer than compared to the hip and knee. More research is needed on the loading mechanisms of the implants in order to enhance the design of future generation implants...
August 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28578844/does-the-dual-mobility-hip-prosthesis-produce-better-joint-kinematics-during-extreme-hip-flexion-task
#12
Danilo S Catelli, Erik Kowalski, Paul E Beaulé, Mario Lamontagne
BACKGROUND: Total hip arthroplasty (THA) using dual-mobility (DM) design permits larger hip range of motion. However, it is unclear how it benefits the patients during activities of daily living. The purpose was to compare kinematic variables of the operated limb between THA patients using either DM or single-bearing (SB) implants during a squat task. METHODS: Twenty-four THA patients were randomly assigned to either a DM or SB implant and matched to 12 healthy controls (CTRLs)...
May 5, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28577036/long-term-wear-of-dual-mobility-total-hip-replacement-cups-explant-study
#13
Bertrand Boyer, Thomas Neri, Jean Geringer, Alexandre Di Iorio, Remi Philippot, Frederic Farizon
PURPOSE: Dual mobility THA implantations are increasing. THA survival of more than 15 years is considered long-term survival based on the Charnley prosthesis, which has a median wear rate of 39 to 98 mm(3)/year. What is the median wear rate of dual mobility THA cups and its repartition on the liner volume? What are the factors influencing dual mobility wear? METHODS: Thirty-five explants were analysed. The liners were entirely mapped with a fully automatic stripe light scanner that uses green LED light...
June 3, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28574117/combined-anteversion-technique-in-total-hip-arthroplasty-for-crowe-iv-developmental-dysplasia-of-the-hip
#14
Biao Zhu, Changzheng Su, Yeteng He, Xingyu Chai, Zhen Li, Zhenyang Hou, Tengteng Lou, Xinfeng Yan
BACKGROUND: A high rate of postoperative dislocation in total hip arthroplasty (THA) for Crowe IV developmental dysplasia of the hip (DDH) has been reported, 1 of the main reasons being higher true acetabular anteversion. If the cup is fixed with normal anteversion, the anterior rim will be excessively exposed, which reduces the contact areas of the cup and bone, affects prosthesis stability, and leads to iliopsoas tendinitis and persistent hip pain after THA. The aim of this study was to demonstrate that when cup anteversion is larger, adjusting femoral anteversion to bring the combined anteversion (CA) into the "safe zone" might prevent dislocation...
May 27, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28573967/dual-mobility-total-hip-arthroplasty-in-hemiplegic-patients
#15
Ayman T Henawy, Ahmed Abdel Badie
INTRODUCTION: The rate of cerebrovascular insults is increasing, currently leaving many patients with difficulties to maintain their balance due to muscular weakness and/or poor central control. Those patients are at risk of dislocation when total hip arthroplasty (THA) is planned. Instability remains the most significant issue after primary THA especially in such groups of patients. The risk is more pronounced when other factors are added such as, older age, femoral neck fractures, avascular necrosis and/or hip osteoarthritis...
2017: SICOT-J
https://www.readbyqxmd.com/read/28567153/comparison-of-post-operative-muscular-strength-between-gamma-nailing-and-hemiarthroplasty-system-in-femoral-intertrochanteric-fractures
#16
Mitsuaki Noda, Yasuhiro Saegusa, Masayasu Takahashi, Chisa Noguchi, Chihiro Yoshikawa, Hiroshi Mikami, Akira Gotouda
BACKGROUND: The current study focuses on the comparison of postoperative muscular strength around the hip joint of patients with femoral intertrochanteric fractures treated either by cephalo-medullary (CM) nailing or a new bipolar hip prosthesis (BHP), an especially attached device to secure displaced greater trochanteric fragment. METHODS: Twenty patients treated with CM nailing were age- and sex- matched with a control group of 20 patients treated with BHP. Maximum isometric forces at the bilateral hip joint were measured during the follow up period...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28558347/total-hip-prosthesis-complication-periprosthetic-infection-with-external-fistulizing-due-to-enterobacter-cloacae-complex-multiple-drugs-resistance-a-clinical-case-report
#17
V Amorese, M Corda, M Donadu, D Usai, F Pisanu, F Milia, F Marras, A Sanna, D Delogu, V Mazzarello, G Manzoni, M Conti, G B Meloni, S Zanetti, C Doria
INTRODUCTION: The Enterobacter cloacae is a microorganism found in the intestinal flora of the majority of animals, including humans. Primary infections caused by E. cloacae are rare in immunocompetent patients, but are very common in hospital settings in newborns and immunocompromised patients, and can be aggravated by the insurgence of antibiotic resistance. The incidence of periprosthetic hip infections is just below 2%. CASE PRESENTATION: A 76year old woman with multiple comorbidities underwent surgical implantation of intermediary total hip prosthesis of the left hip, in a different health facility, in February 2014, after the basicervical fracture of the upper femur extremity due to trauma...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28558114/three-dimensional-templating-for-acetabular-component-alignment-during-total-hip-arthroplasty
#18
Ameer M Elbuluk, Paul Wojack, Nima Eftekhary, Jonathan M Vigdorchik
Appropriate placement of the acetabular cup is an important determinant of implant stability and longevity. Malposition of acetabular cups negatively influences prosthesis survival and leads to an increased dislocation rate. The objective of the study was to determine the role of 3-dimensional templating in obtaining accurate acetabular component placement in total hip arthroplasty. In this computed tomography-based study, the authors identified 93 patients who underwent primary total hip arthroplasty with computer-assisted navigation...
May 30, 2017: Orthopedics
https://www.readbyqxmd.com/read/28553103/the-metal-nanoparticle-induced-inflammatory-response-is-regulated-by-sirt1-through-nf-%C3%AE%C2%BAb-deacetylation-in-aseptic-loosening
#19
Zhantao Deng, Jiewen Jin, Zhenheng Wang, Yong Wang, Qian Gao, Jianning Zhao
Aseptic loosening is the most common cause of total hip arthroplasty (THA) failure, and osteolysis induced by wear particles plays a major role in aseptic loosening. Various pathways in multiple cell types contribute to the pathogenesis of osteolysis, but the role of Sirtuin 1 (SIRT1), which can regulate inflammatory responses through its deacetylation, has never been investigated. We hypothesized that the downregulation of SIRT1 in macrophages induced by metal nanoparticles was one of the reasons for osteolysis in THA failure...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28542504/level-of-surgical-experience-is-associated-with-change-in-hip-center-of-rotation-following-cementless-total-hip-arthroplasty-a-radiographic-assessment
#20
Seung-Chan Kim, Young-Wook Lim, Soon-Yong Kwon, Woo-Lam Jo, Sung-Hun Ju, Chan-Joo Park, Choong-Woo Lee, Yong-Sik Kim
OBJECTIVES: After total hip arthroplasty (THA), restoration of hip center of rotation (COR) is essential to ensure stability of the prosthetic hip and longevity of the prosthesis. Our aim was to determine whether, and how, the COR changed postoperatively compared to the native COR following implantation of a cementless acetabular component in anatomical position and to compare the accuracy of cup placement between two surgeons with different levels of surgical experience. MATERIALS AND METHODS: We evaluated 145 patients (145 hips) who underwent unilateral primary THA, who had no distorted acetabulum on the affected hip and a normal contralateral hip...
2017: PloS One
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