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https://www.readbyqxmd.com/read/29774956/cement-interface-and-bone-stress-in-total-hip-arthroplasty-relationship-to-head-size
#1
Teresa Alonso-Rasgado, Jose F Del-Valle-Mojica, David Jimenez-Cruz, Colin G Bailey, Tim N Board
The use of larger prosthetic femoral heads in total hip arthroplasty (THA) has increased considerably in recent years in response to the need to improve joint stability and reduce risk of dislocation. However, data suggests larger femoral heads are associated with higher joint failure rates. For cemented implants, ensuring the continued integrity of the cement mantle is key to long term fixation. This paper describes an investigation into the effect of variation in femoral head size on stresses in the acetabular cement mantle and pelvic bone...
May 18, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29773451/total-hip-arthroplasty-for-posttraumatic-osteoarthritis-following-acetabular-fracture-a-systematic-review-of-characteristics-outcomes-and-complications
#2
Robert D Stibolt, Harshadkumar A Patel, Samuel R Huntley, Eva J Lehtonen, Ashish B Shah, Sameer M Naranje
PURPOSE: Posttraumatic arthritis (PTA) may develop years after acetabular fracture, hindering joint function and causing significant chronic musculoskeletal pain. Given the delayed onset of PTA, few studies have assessed outcomes of delayed total hip arthroplasty (THA) in acetabular fracture patients. This study systematically reviewed the literature for outcomes of THA in patients with PTA and prior acetabular fracture. METHODS: Pubmed, EMBASE, SCOPUS, and Cochrane library were searched for articles containing the keywords "acetabular", "fracture", "arthroplasty", and "post traumatic arthritis" published between 1995 and August 2017...
April 26, 2018: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/29772993/shoulder-lesion-in-a-69-year-old-woman
#3
Andrew J Hayden, Srinivas Kolla, Adele L Boskey, Steven Burekhovich, Chuanyong Lu, Michael Stracher, Aditya V Maheshwari
Milwaukee Shoulder Syndrome (MSS) is a painful progressive arthropathy in which hydroxyapatite crystal deposition in synovial tissue induces lysosomal release of collagenase and neutral proteases. These enzymes are destructive to periarticular tissue, including the synovium, articular cartilage, rotator cuff muscles, and the intrasynovial cortical bone. MSS predominantly occurring in women (90%) over the age of 70 years of age with a clinical history marked by recurrent joint effusions and pain, which classically worsens at night...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29761221/interest-of-short-implants-in-hip-arthroplasty-for-osteonecrosis-of-the-femoral-head-comparative-study-uncemented-short-vs-cemented-conventional-femoral-stems
#4
Mehdi Miladi, Benoît Villain, Nasser Mebtouche, Thierry Bégué, Jean-Charles Aurégan
PURPOSES: Osteonecrosis of the femoral head (ONFH) is a dramatic condition resulting in joint destruction in the late stages. Total hip arthroplasty allows function recovery with satisfactory implant survival. Recently, the use of uncemented short stems has been suggested to improve the conservation of bone stock. METHODS: We performed a retrospective study on 16 hip arthroplasties-11 patients-implanted for ONFH between 2008 and 2017. We aimed to compare the outcomes of the two types of arthroplasty-"uncemented short" vs "cemented conventional" femoral stem-in terms of pain (visual analogue scale), function (Harris Hip Score), and survival (radiography)...
May 15, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29744425/preliminary-focus-on-the-mechanical-and-antibacterial-activity-of-a-pmma-based-bone-cement-loaded-with-gold-nanoparticles
#5
T Russo, A Gloria, R De Santis, U D'Amora, G Balato, A Vollaro, O Oliviero, G Improta, M Triassi, L Ambrosio
In total knee arthroplasty (TKA) and total hip replacement (THR) the restoration of the normal joint function represents a fundamental feature. A prosthetic joint must be able to provide motions and to transmit functional loads. As reported in the literature, the stress distribution may be altered in bones after the implantation of a total joint prosthesis. Some scientific works have also correlated uncemented TKA to a progressive decrease of bone density below the tibial component. Antibiotic-loaded bone cements are commonly employed in conjunction with systemic antibiotics to treat infections...
September 2017: Bioactive Materials
https://www.readbyqxmd.com/read/29737288/effect-of-different-types-of-anticoagulants-in-the-prevention-of-venous-thrombosis-in-the-operation-of-knee-joint-bone-operation
#6
Wensheng Xu, Tao Zhang, Zenghua Yang, Lin Nie
Deep venous thrombosis is one of the common complications after major surgery in the Department of Orthopedics. The selective knee replacement of the lower extremities is more likely to cause the occurrence of DVT. The most commonly used anticoagulants in the Department of Orthopedics now include low molecular weight heparin (LMWH), Rivaroxaban, ordinary heparin, aspirin and warfarin. At present, the clinical application of low molecular weight heparin is the most, and the effect is the most accurate. This study compared the efficacy and safety of three commonly used anticoagulants such as aspirin, LMWH and Rivaroxaban in preventing VTE after hip and knee arthroplasty, so as to provide a theoretical basis for selecting suitable anticoagulant drugs in clinic...
May 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29735456/effect-of-different-types-of-anticoagulants-in-the-prevention-of-venous-thrombosis-in-the-operation-of-knee-joint-bone-operation
#7
Wensheng Xu, Tao Zhang, Zenghua Yang, Lin Nie
Deep venous thrombosis is one of the common complications after major surgery in the Department of Orthopedics. The selective knee replacement of the lower extremities is more likely to cause the occurrence of DVT. The most commonly used anticoagulants in the Department of Orthopedics now include low molecular weight heparin (LMWH), Rivaroxaban, ordinary heparin, aspirin and warfarin. At present, the clinical application of low molecular weight heparin is the most, and the effect is the most accurate. This study compared the efficacy and safety of three commonly used anticoagulants such as aspirin, LMWH and Rivaroxaban in preventing VTE after hip and knee arthroplasty, so as to provide a theoretical basis for selecting suitable anticoagulant drugs in clinic...
May 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29715222/alpha-defensin-lateral-flow-test-for-diagnosis-of-periprosthetic-joint-infection-not-a-screening-but-a-confirmatory-test
#8
Nora Renz, Katsiaryna Yermak, Carsten Perka, Andrej Trampuz
BACKGROUND: Determination of alpha defensin in synovial fluid has shown promising results for diagnosing periprosthetic joint infection (PJI). The purposes of our study were to assess the performance of alpha defensin lateral flow (ADLF) test for the diagnosis of acute and chronic PJI using 3 classification systems and to compare its performance with the synovial fluid leukocyte count. METHODS: Patients in whom aspiration of a prosthetic hip or knee joint was performed before revision arthroplasty were prospectively included...
May 2, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29706256/primary-total-hip-arthroplasty-for-charcot-arthropathy-is-associated-with-high-complications-but-improved-clinical-outcomes
#9
Brian P Chalmers, Meagan E Tibbo, Robert T Trousdale, David G Lewallen, Daniel J Berry, Matthew P Abdel
BACKGROUND: Neuropathic (Charcot) arthropathy of the hip is rare but can lead to joint destruction, bone loss, and dysfunction. While total hip arthroplasty (THA) may be considered a treatment option, only very limited data in the form of case reports are available on the results of THA. The goal of this study was to analyze the outcomes of primary THA for Charcot arthropathy with emphasis on implant survivorship, complications, and clinical outcomes. METHODS: Eleven patients undergoing 12 primary THAs for Charcot arthropathy from 2007 to 2014 were retrospectively reviewed...
April 10, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29705871/mid-term-results-of-concentrated-autologous-bone-marrow-aspirate-transplantation-for-corticosteroid-associated-osteonecrosis-of-the-femoral-head-in-systemic-lupus-erythematosus
#10
Yohei Tomaru, Tomokazu Yoshioka, Hisashi Sugaya, Yukiyo Shimizu, Katsuya Aoto, Hiroshi Wada, Hiroshi Akaogi, Masashi Yamazaki, Hajime Mishima
PURPOSE: We had previously established concentrated autologous bone marrow aspirate transplantation (CABMAT), a one-step, low-invasive, joint-preserving surgical technique for treating osteonecrosis of the femoral head (ONFH). This study aimed to evaluate the effects of CABMAT as a hip-preserving surgical approach, preventing conversion to total hip arthroplasty (THA) and femoral head collapse in patients with systemic lupus erythematosus (SLE). METHODS: Since 2003, 52 SLE patients (8 male, 44 female, 92 hips, mean age 35...
April 28, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29703041/effect-of-shape-on-bone-cement-polymerization-time-in-knee-joint-replacement-surgery
#11
Jung-Ro Yoon, Young-Rok Ko, Young-Soo Shin
BACKGROUND: Although many factors are known to influence the polymerization time of bone cement, it remains unclear which bone cement shape predicts the precise polymerization time. The purpose of this study was to investigate whether different cement shapes influenced polymerization time and to identify the relationship between cement shape and ambient operating theater temperature, relative humidity, and equilibration time. METHODS: Samples were gathered prospectively from 237 patients undergoing primary total knee arthroplasty...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29701098/the-influence-of-obesity-on-functional-outcome-and-quality-of-life-after-total-knee-arthroplasty
#12
S Xu, J Y Chen, N N Lo, S L Chia, D K J Tay, H N Pang, Y Hao, S J Yeo
Aims This study investigated the influence of body mass index (BMI) on patients' function and quality of life ten years after total knee arthroplasty (TKA). Patients and Methods A total of 126 patients who underwent unilateral TKA in 2006 were prospectively included in this retrospective study. They were categorized into two groups based on BMI: < 30 kg/m2 (control) and ≥ 30 kg/m2 (obese). Functional outcome was assessed using the Knee Society Function Score (KSFS), Knee Society Knee Score (KSKS), and Oxford Knee Score (OKS)...
May 1, 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29701094/patient-reported-outcome-measures-after-surgery-for-an-acetabular-fracture
#13
B Frietman, J Biert, M J R Edwards
Aims The aim of this study was to record the incidence of post-traumatic osteoarthritis (OA), the need for total hip arthroplasty (THA), and patient-reported outcome measures (PROMS) after surgery for a fracture of the acetabulum, in our centre. Patients and Methods All patients who underwent surgery for an acetabular fracture between 2004 and 2014 were included. Patients completed the 36-Item Short Form Health Survey (SF-36) and the modified Harris Hip Score (mHHS) questionnaires. A retrospective chart and radiographic review was performed on all patients...
May 1, 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29701085/mid-term-results-of-anatomical-total-shoulder-arthroplasty-for-primary-osteoarthritis-using-a-short-stemmed-cementless-humeral-component
#14
M Schnetzke, S Rick, P Raiss, G Walch, M Loew
Aims The aim of this study was to evaluate the clinical and radiological outcome of using an anatomical short-stem shoulder prosthesis to treat primary osteoarthritis of the glenohumeral joint. Patients and Methods A total of 66 patients (67 shoulders) with a mean age of 76 years (63 to 92) were available for clinical and radiological follow-up at two different timepoints (T1, mean 2.6 years, sd 0.5; T2, mean 5.3 years, sd 0.7). Postoperative radiographs were analyzed for stem angle, cortical contact, and filling ratio of the stem...
May 1, 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29696322/-minimally-invasive-cheilectomy
#15
REVIEW
M Walther, P Chomej, S Kriegelstein, S Altenberger, A Röser
OBJECTIVES: Treatment of hallux rigidus by minimally invasive resection of the dorsal osteophytes, synovectomy and resection of the dorsal part of the metatarsal head. INDICATIONS: Hallux rigidus grades II and III CONTRAINDICATIONS: End-stage osteoarthritis of the first metatarsophalangeal joint with beginning ankylosis. SURGICAL TECHNIQUE: Osteophytes around the metatarsophalangeal joint are removed using a 1 cm incision dorsomedial, approximately 3 cm proximal of the joint space...
April 25, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29683803/is-cemented-or-cementless-femoral-stem-fixation-more-durable-in-patients-older-than-75-years-of-age-a-comparison-of-the-best-performing-stems
#16
Michael Tanzer, Stephen E Graves, Andrea Peng, Andrew J Shimmin
BACKGROUND: There is ongoing debate concerning the best method of femoral fixation in older patients receiving primary THA. Clinical studies have shown high survivorship for cemented and cementless femoral stems. Arthroplasty registry studies, however, have universally shown that cementless stems are associated with a higher rate of revision in this patient population. It is unclear if the difference in revision rate is a reflection of the range of implants being used for these procedures rather than the mode of fixation...
April 9, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29682286/maximizing-the-fixation-strength-of-modular-components-by-impaction-without-tissue-damage
#17
A Krull, M M Morlock, N E Bishop
Objectives: Taper junctions between modular hip arthroplasty femoral heads and stems fail by wear or corrosion which can be caused by relative motion at their interface. Increasing the assembly force can reduce relative motion and corrosion but may also damage surrounding tissues. The purpose of this study was to determine the effects of increasing the impaction energy and the stiffness of the impactor tool on the stability of the taper junction and on the forces transmitted through the patient's surrounding tissues...
February 2018: Bone & Joint Research
https://www.readbyqxmd.com/read/29678845/the-use-of-type-i-collagen-cross-linked-c-telopeptide-ctx-1-as-a-biomarker-associated-with-the-formation-of-periprosthetic-ossifications-following-total-hip-joint-arthroplasty
#18
Paweł Łęgosz, Łukasz Pulik, Piotr Stępiński, Jakub Janowicz, Agnieszka Wirkowska, Andrzej Kotela, Sylwia Sarzyńska, Paweł Małdyk
The aim of this study was to determine the co-occurrence of heterotopic ossifications (HO) and elevated bone biomarkers level (urine type I collagen cross-linked C-telopeptide - CTX-1, serum alkaline phosphatase - ALP) and assess the effectiveness of pharmacological prophylaxis of HO. The study group consisted of (N=54) patients qualified for total hip arthroplasty. In N=19 (35%) patients new HO were formed (48th week vs to baseline). On baseline, the mean CTX-1 value in the HO (-) patients was 8.60+/-5.37 ug/mmol vs HO (+) 11...
March 2018: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/29673377/total-hip-arthroplasty-to-treat-acetabular-protrusions-secondary-to-rheumatoid-arthritis
#19
Ping Zhen, Xusheng Li, Shenghu Zhou, Hao Lu, Hui Chen, Jun Liu
BACKGROUND: The treatment of acetabular protrusions during total hip arthroplasty of patients with rheumatoid arthritis is difficult. A lack of bone stock, deficient medial cup support, and medialization of the joint center in those with protrusio acetabuli must be addressed during acetabular reconstruction. The purpose of this study was to assess the short-term clinical results of total hip arthroplasty in patients with severe acetabular protrusions secondary to rheumatoid arthritis...
April 19, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29671089/porous-metal-cones-gold-standard-for-massive-bone-loss-in-complex-revision-knee-arthroplasty-a-systematic-review-of-current-literature
#20
Stefano Divano, Luca Cavagnaro, Andrea Zanirato, Marco Basso, Lamberto Felli, Matteo Formica
INTRODUCTION: Revision knee arthroplasty is increasing, and in that case, bone loss management is still a challenging problem. In the last years, the body of literature and interest surrounding porous metal cones has grown, but few systematic evaluations of the existing evidence have been performed. The aim of our systematic review is to collect and critically analyze the available evidence about metal cones in revision knee arthroplasty especially focusing our attention on indications, results, complications, and infection rate of these promising orthopaedic devices...
April 18, 2018: Archives of Orthopaedic and Trauma Surgery
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