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Knee arthroplasty

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https://www.readbyqxmd.com/read/28937534/the-spread-of-ultrasound-guided-injectate-from-the-adductor-canal-to-the-genicular-branch-of-the-posterior-obturator-nerve-and-the-popliteal-plexus-a-cadaveric-study
#1
Charlotte Runge, Bernhard Moriggl, Jens Børglum, Thomas Fichtner Bendtsen
BACKGROUND AND OBJECTIVES: The popliteal nerve plexus contributes to afferent knee-pain conduction. It is mainly formed by genicular branches from the posterior obturator and the tibial nerves, innervating the intra-articular and posterior knee region. A subinguinal obturator nerve block alleviates pain after total knee arthroplasty. Reduced hip adductor motor function could be avoided by a posterior obturator nerve block inside the popliteal fossa. The aim of this study was to evaluate the spread of dye after a distal adductor canal (AC) injection to the popliteal fossa and coloring of the popliteal plexus and the genicular branch of the posterior obturator nerve by dissection...
September 20, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28936684/kinematics-of-mobile-bearing-unicompartmental-knee-arthroplasty-compared-to-native-results-from-an-in-vitro-study
#2
Geert Peersman, Josh Slane, Philippe Vuylsteke, Susanne Fuchs-Winkelmann, Philipp Dworschak, Thomas Heyse, Lennart Scheys
INTRODUCTION: Fixed-bearing unicompartmental knee arthroplasty (UKA) closely replicates native knee kinematics. As few studies have assessed kinematics following mobile-bearing (MB) UKA, the current study aimed to investigate whether MB UKA preserves natural knee kinematics. MATERIALS AND METHODS: Seven fresh-frozen full-leg cadaver specimens were prepared and mounted in a kinematic rig that allowed all degrees of freedom at the knee. Three motion patterns, passive flexion-extension (0°-110° flexion), open-chain extension (5°-70° flexion) and squatting (30°-100° flexion), were performed pre- and post-implantation of a medial MB UKA and compared in terms of rotational and translational knee joint kinematics in the different anatomical planes, respectively...
September 21, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28935593/factors-affecting-peri-implant-fracture-following-locking-plate-for-osteoporotic-distal-femur-fractures
#3
Ki-Chul Park, Seung-Jae Lim, Young Sik Song, Kyu-Tae Hwang
INTRODUCTION: The purpose of this study is to evaluate the outcomes and to analyze the risk factors for the occurrence of peri-implant fracture after treatment of osteoporotic distal femoral fracturesusing a locking plate. HYPOTHESIS: Risk factors affecting peri-implant fracture exist after locking plate fixation in osteoporotic distal femur fracture. MATERIALS AND METHODS: Eighty nine(88 patients) with osteoporotic distal femoral fractures were evaluated between January2006 and January2014...
September 18, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28935340/risk-factors-outcomes-and-timing-of-manipulation-under-anesthesia-after-total-knee-arthroplasty
#4
Erik T Newman, Thomas A Herschmiller, David E Attarian, Thomas P Vail, Michael P Bolognesi, Samuel S Wellman
BACKGROUND: Knee stiffness requiring manipulation under anesthesia (MUA) is an undesirable outcome following total knee arthroplasty (TKA), but risk factors for, and optimal timing of, MUA remain unclear. METHODS: Primary TKAs performed at a single center were retrospectively reviewed. Clinical variables were compared between patients who underwent MUA and those who did not; variables that differed were utilized to identify an appropriately matched control group of non-MUA patients...
August 10, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28934878/surgical-preparation-for-articular-cartilage-regeneration-in-the-osteoarthritic-knee-joint
#5
Joerg Mika, Thomas O Clanton, Catherine G Ambrose, Raimund W Kinne
PURPOSE: Autologous chondrocyte implantation (ACI) is a treatment option even in early osteoarthritis (OA). Surgical preparation for ACI should avoid penetration of the subchondral bone plate to prevent hemorrhage, fibrin clot formation, and subsequent activation of the inflammatory response. HYPOTHESIS: Current surgical procedures with ring curettes preserve the integrity of the subchondral bone plate, even in patients with OA. METHODS: Subchondral femoral bone plates ( n = 40) of OA knees undergoing total knee arthroplasty were prepared in vivo using standard, non-brute-force debridement for ACI...
October 2017: Cartilage
https://www.readbyqxmd.com/read/28933698/evidence-corner-total-hip-or-knee-arthroplasty-improving-infection-risk
#6
Laura Bolton
No abstract text is available yet for this article.
September 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28933513/effect-of-transcutaneous-electrical-nerve-stimulation-for-pain-control-after-total-knee-arthroplasty-a-systematic-review-and-meta-analysis
#7
Yongjun Zhu, Yuxing Feng, Lihua Peng
INTRODUCTION: Transcutaneous electrical nerve stimulation is a possible adjunctive therapy to pharmacological treatment for controlling pain after total knee arthroplasty. However, the results are controversial. A systematic review and meta-analysis was conducted to explore the effect of transcutaneous electrical nerve stimulation on patients with total knee arthroplasty. METHODS: PubMed, Embase, Web of Science, EBSCO, and Cochrane Library databases were searched systematically...
September 21, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28933332/the-impact-of-caregivers-anxiety-on-patients-anxiety-before-fast-track-knee-arthroplasty
#8
P Zietek, B Zarzycka, J Zietek, M Stepien-Slodkowska, E Sienko-Awierianow, D Kotrych, K Dobiecki
PURPOSE OF THE STUDY Anxiety may have negative repercussions on the surgery including poorer outcomes. On the other hand, the majority of patients reporting preoperative anxiety fear not receiving enough attention from a caregiver. In patients undergoing fast-track knee arthroplasty, we determined the relationship between patients' preoperative anxiety and the anxiety the patient's caregiver. We also analyzed the influence of selected psychosocial and demographic variables on the relationship between caregivers' and patients' anxiety...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28933328/-local-application-of-tranexamic-acid-in-total-hip-arthroplasty-decreases-blood-loss-and-consumption-of-blood-transfusion
#9
J Lošťák, J Gallo, M Večeřa, J Špička, K Langová
PURPOSE OF THE STUDY The primary aim of our study was to identify the effects of local application of tranexamic acid (TXA, Exacyl) on the amount of postoperative blood loss and blood transfusion requirement in primary total hip arthroplasty. We also recorded the levels of postoperative haemoglobin and its drop in early period after surgery. In each patient, we monitored in detail the incidence of early complications (haematoma, wound exudate). Lastly, the economic aspect of TXA administration was also taken into account...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28932491/osteophytes-removal-in-patella-versus-lateral-facetectomy-of-the-patella-in-patella-retaining-total-knee-arthroplasty
#10
Mehdi Moghtadaei, Mohammad Reza Miniator Sajadi, Hossein Farahini, Ali Yeganeh
BACKGROUND: In this study, the results of the partial lateral facetectomy of the patella to better patellofemoral motion and congruence are compared with the results of the osteophyte removal of the patella and neurectomy only in total knee arthroplasty (TKA). METHODS: Data from 55 patients undergoing TKA with osteophytes removal of the patella and neurectomy only, and those undergoing osteophytes removal of the patella and neurectomy and partial lateral facetectomy were reviewed retrospectively...
March 2017: Interventional Medicine & Applied Science
https://www.readbyqxmd.com/read/28930905/effectiveness-of-early-warming-with-self-warming-blankets-on-postoperative-hypothermia-in-total-hip-and-knee-arthroplasty
#11
Baris B Koc, Martijn G M Schotanus, Jean-Paul A P A C Kollenburg, Maurice J A Janssen, Fabian Tijssen, Edwin J P Jansen
BACKGROUND: Hypothermia is an important complication in joint arthroplasty. Commonly, forced air warming (FAW) devices are used intraoperatively to maintain body temperature in patients undergoing surgery. However, it is believed that these convective warming systems could increase the risk of deep surgical site infections due to disruption of unidirectional downward laminar airflow. Conductive warming devices have no noticeable effect on ventilation airflow. Nevertheless, the effectiveness of the self-warming (SW) blanket, a novel conductive warming device, on postoperative hypothermia in elective joint arthroplasty is unknown...
September 2017: Orthopaedic Nursing
https://www.readbyqxmd.com/read/28930857/adductor-canal-block-with-local-infiltrative-analgesia-compared-with-local-infiltrate-analgesia-for-pain-control-after-total-knee-arthroplasty-a-meta-analysis-of-randomized-controlled-trials
#12
Qiujuan Xing, Weiwei Dai, Dongfeng Zhao, Ji Wu, Chunshui Huang, Yun Zhao
BACKGROUND: This meta-analysis aimed to evaluate the efficiency and safety of the combined adductor canal block with peri-articular infiltration versus periarticular infiltration alone for pain control after total knee arthroplasty (TKA). METHODS: PubMed, Medline, Embase, Web of Science, and the Cochrane Library were searched to identify articles comparing the combined adductor canal block with peri-articular infiltration and periarticular infiltration alone for pain control after TKA...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930833/readmission-due-to-infection-following-total-hip-and-total-knee-procedures-a-retrospective-study
#13
Nadine Zawadzki, Yao Wang, Hui Shao, Emelline Liu, Chao Song, Michele Schoonmaker, Lizheng Shi
Policymakers have expanded readmissions penalty programs to include elective arthroplasties, but little is known about the risk factors for readmissions following these procedures. We hypothesized that infections after total hip arthroplasty (THA) and total knee arthroplasty (TKA) lead to excess readmissions and increased costs. This study aims to evaluate the proportion of readmissions due to infections following THA and TKA.Healthcare Cost and Utilization Project-State Inpatient Databases were used for the study...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28927647/protecting-the-pcl-during-total-knee-arthroplasty-using-a-bone-island-technique
#14
Addison R Wood, Tebyan A Rabbani, Benjamin Sheffer, Russell A Wagner, Hugo B Sanchez
BACKGROUND: Prior studies have shown that the posterior cruciate ligament (PCL) may be partially resected during cruciate retaining (CR) total knee arthroplasty (TKA) using highly experienced hands and standard surgical technique; therefore, proper surgical technique is aimed at preservation and balance of the PCL during CR TKA. The central objective of this study is to evaluate the effectiveness of a simple surgical technique to prevent PCL damage during performance of a CR TKA. METHODS: Sixty embalmed cadaver specimens were randomized into 2 groups, experimental and control...
August 26, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28927646/are-there-prognostic-factors-for-one-year-outcome-after-total-knee-arthroplasty-a-systematic-review
#15
Karen E M Harmelink, Adelgunde V C M Zeegers, Wim Hullegie, Thomas J Hoogeboom, Maria W G Nijhuis-van der Sanden, J Bart Staal
BACKGROUND: Preoperative factors predicting outcome for pain, physical function and quality of life after total knee arthroplasty (TKA) have not been clearly identified. METHODS: Embase and MEDLINE were searched for relevant studies. A study was considered for inclusion if the study aimed to identify preoperative prognostic factors for pain, physical function, and/or quality of life after a follow-up period of at least 1 year; included at least 200 adults suffering from osteoarthritis and undergoing TKA; and analyzed data using multivariable modeling...
August 1, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28927564/risk-for-prolonged-opioid-use-following-total-knee-arthroplasty-in-veterans
#16
Katherine Hadlandsmyth, Mark W Vander Weg, Kimberly D McCoy, Hilary J Mosher, Mary S Vaughan-Sarrazin, Brian C Lund
BACKGROUND: Patients undergoing total knee arthroplasty (TKA) may be at risk for prolonged postsurgical opioid use due to a high prevalence of persistent postsurgical pain (20%) and high rates of presurgical opioid use. METHODS: The current study uses a Veterans Health Administration sample of 6653 Veterans who underwent TKA in the fiscal year 2014 that did not require surgical revision during the subsequent year. RESULTS: Sixty percent of the sample had used an opioid in the year prior to surgery, including 20% who were on long-term opioid use at the time of surgery (defined as 90+ days of continuous use) and 40% with any other opioid use in the year prior to surgery...
August 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28927563/braking-time-following-total-knee-arthroplasty-a-systematic-review
#17
Jeffrey Hartman, Patrick Thornley, Stephan Oreskovich, Anthony Adili, Asheesh Bedi, Moin Khan
BACKGROUND: Currently, no guidelines exist to assist surgeons in providing recommendations to patients undergoing total knee arthroplasty (TKA) on when it is safe to return to driving. The purpose of this systematic review is to analyze the best available literature to assist surgeons in providing evidence-based recommendations on when it is safe to return to driving after TKA. METHODS: Following established methodology for the conduct of systematic reviews, a literature search was performed for prospective studies on driving after TKA...
August 31, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28927562/periarticular-injection-of-tranexamic-acid-reduces-blood-loss-and-the-necessity-for-allogeneic-transfusion-after-total-knee-arthroplasty-using-autologous-transfusion-a-retrospective-observational-study
#18
Sain Yozawa, Hiroyasu Ogawa, Kazu Matsumoto, Haruhiko Akiyama
BACKGROUND: This study aimed to examine the influence of a periarticular injection of tranexamic acid (TXA) on blood loss after a total knee arthroplasty (TKA) in patients who received an autologous blood transfusion. METHODS: We retrospectively reviewed the medical charts of 82 patients (88 consecutive knees) who underwent a primary unilateral TKA with or without a periarticular TXA injection (TXA and control groups, respectively). All patients underwent an autologous blood transfusion...
August 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28927560/patient-variation-limits-use-of-fixed-references-for-femoral-rotation-component-alignment-in-total-knee-arthroplasty
#19
Joshua G Twiggs, David M Dickison, Elizabeth C Kolos, Caitlin E Wilcox, Justin P Roe, Brett A Fritsch, Stephen J McMahon, Brad P Miles, Andrew J Ruys
BACKGROUND: Optimal rotational alignment of the femoral component is a common goal during total knee arthroplasty. The posterior condylar axis (PCA) is thought to be the most reproducible reference in surgery, while the transepicondylar axis (TEA) seems to better approximate the native kinematic flexion axis. This study sought to determine if rules based on patient gender or coronal alignment could allow reliable reproduction of the TEA from the PCA. METHODS: Three-dimensional models based on preoperative computed tomography were made representing a patient's arthritic knee joint...
August 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28927387/development-of-the-treatment-beliefs-in-knee-and-hip-osteoarthritis-toa-questionnaire
#20
Ellen M H Selten, Johanna E Vriezekolk, Henk J Schers, Marc W Nijhof, Willemijn H van der Laan, Roelien G van der Meulen-Dilling, Rinie Geenen, Cornelia H M van den Ende
BACKGROUND: Use of conservative treatment modalities in osteoarthritis (OA) is suboptimal, which appears to be partly due to patients' beliefs about treatments. The aim of this study was to develop a research instrument assessing patients' beliefs about various treatment modalities of hip and knee OA: the 'Treatment beliefs in OA (TOA) questionnaire'. METHODS: The item pool that was retrieved from interviews with patients and healthcare providers comprised beliefs regarding five treatment modalities: physical activity, pain medication, physiotherapy, injections and arthroplasty...
September 19, 2017: BMC Musculoskeletal Disorders
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