journal
MENU ▼
Read by QxMD icon Read
search

Knee

journal
https://www.readbyqxmd.com/read/28622843/fatal-pulmonary-embolism-following-elective-total-knee-replacement-using-aspirin-in-multi-modal-prophylaxis-a-12year-study
#1
C Quah, E Bayley, N Bhamber, P Howard
BACKGROUND: The National Institute for Health and Clinical Excellence (NICE) has issued guidelines on which thromboprophylaxis regimens are suitable following lower limb arthroplasty. Aspirin is not a recommended agent despite being accepted in orthopaedic guidelines elsewhere. We assessed the incidence of fatal pulmonary embolism (PE) and all-cause mortality following elective primary total knee replacement (TKR) with a standardised multi-modal prophylaxis regime in a large teaching district general hospital...
June 13, 2017: Knee
https://www.readbyqxmd.com/read/28622842/two-stage-knee-arthrodesis-with-a-modular-intramedullary-nail-due-to-septic-failure-of-revision-total-knee-arthroplasty-with-extensor-mechanism-deficiency
#2
Max J Friedrich, Jan Schmolders, Matthias D Wimmer, Andreas C Strauss, Milena M Ploeger, Dieter C Wirtz, Sascha Gravius, Thomas M Randau
BACKGROUND: Periprosthetic joint infection is a serious complication and reconstruction after failed revision total knee arthroplasty with significant bone loss and compromised soft-tissues can be challenging. Objective of this study was to assess clinical and functional results, implant survival and infection recurrence rates in patients treated with two-stage arthrodesis after failed revision TKA with extensor mechanism deficiencies due to PJI, and to identify the factors that affect outcomes after surgery...
June 13, 2017: Knee
https://www.readbyqxmd.com/read/28615121/implications-of-the-getting-it-right-first-time-initiative-for-regional-knee-arthroplasty-services
#3
Richard Barksfield, James Murray, James Robinson, Andrew Porteous
STUDY AIM: The aim of this case study of regional orthopaedic practice was to estimate the potential impact of the GIRFT recommendations (iGIRFT) of minimum unit and surgeon specific volumes to orthopaedic units within the Severn Region, UK. METHOD: Practice profiles for surgeons and units were generated using the UK National Joint Registry Surgeon and Hospital Profile Database. Minimum volume thresholds were set at 13 procedures/year for surgeons and 30 procedures/year for units...
June 11, 2017: Knee
https://www.readbyqxmd.com/read/28601393/oxidized-zirconium-versus-cobalt-chromium-against-the-native-patella-in-total-knee-arthroplasty-patellofemoral-outcomes
#4
Fabrizio Matassi, Tommaso Paoli, Roberto Civinini, Christian Carulli, Massimo Innocenti
BACKGROUND: Oxidized zirconium (OxZr) has demonstrated excellent mechanical properties in vitro when used against articular cartilage; less coefficient of friction and less chondral damage have been found when compared with cobalt-chromium (CoCr) implants. However, controversy exists as to whether implants with a zirconium femoral component articulate safely with a native patella in total knee arthroplasty (TKA). To answer this question, the clinical and radiographic results were analysed from a group of patients who underwent a TKA with patella retention; the OxZr versus CoCr femoral components were compared...
June 7, 2017: Knee
https://www.readbyqxmd.com/read/28583727/validating-the-forgotten-joint-score-12-in-patients-after-acl-reconstruction
#5
Henrik Behrend, Karlmeinrad Giesinger, Vilijam Zdravkovic, Johannes M Giesinger
BACKGROUND: The forgotten joint score-12 (FJS-12), used to measure postoperative joint awareness, has been extensively validated to assess outcomes after arthroplasty, however the new score has never been validated in evaluating anterior cruciate ligament (ACL) reconstruction. The purpose of our study was to validate the FJS-12 versus the knee injury and osteoarthritis outcome score (KOOS) for patients who have undergone ACL reconstruction. METHODS: All patients who had undergone ACL reconstruction with the same arthroscopic surgical technique at our institution between 2011 and 2014 (medium-term follow-up group (M-FU)) or between 2000 and 2005 (long-term follow-up group (L-FU)) were considered for inclusion in the study...
June 2, 2017: Knee
https://www.readbyqxmd.com/read/28579132/optimization-of-sagittal-and-coronal-planes-with-robotic-assisted-unicompartmental-knee-arthroplasty
#6
Michael A Gaudiani, Benedict U Nwachukwu, Jayesh V Baviskar, Mrinal Sharma, Anil S Ranawat
BACKGROUND: One of the anatomic goals of total knee arthroplasty (TKA) is optimizing in the coronal and sagittal plane. Accurate alignments of both planes have been correlated to functional outcome and range of motion. There is a paucity of evidence on the accuracy of unicompartmental knee arthroplasty (UKA) in balancing biplanar knee alignment - specifically sagittal plane alignment. Because robotic assisted UKA has an advantage of more accurately manipulating sagittal plane for optimal alignment and kinematics based on pre-operative and intraoperative CT planning we assessed the accuracy...
June 1, 2017: Knee
https://www.readbyqxmd.com/read/28576689/coronal-alignment-predicts-the-use-of-semi-constrained-implants-in-contemporary-total-knee-arthroplasty
#7
J Ryan Martin, Keith A Fehring, Chad D Watts, Daniel L Levy, Bryan D Springer, Raymond H Kim
BACKGROUND: Semi-constrained, or varus-valgus constrained, implants are occasionally necessary to achieve stability in primary total knee arthroplasty (TKA). However, outcomes with these implants are largely unknown. Therefore, the primary goals of this study were to determine 1) can we identify preoperatively which patients might require a semi-constrained implant and 2) are there any clinical and or radiographic differences for those that require a semi-constrained implant? METHODS: A multicenter retrospective study was performed to retrospectively review patients that had a Stryker Triathlon (Kalamazoo, MI) TKA with a Total Stabilized (TS) tibial insert (n=75)...
May 30, 2017: Knee
https://www.readbyqxmd.com/read/28571921/variability-in-static-alignment-and-kinematics-for-kinematically-aligned-tka
#8
Willy Theodore, Joshua Twiggs, Elizabeth Kolos, Justin Roe, Brett Fritsch, David Dickison, David Liu, Lucy Salmon, Brad Miles, Stephen Howell
BACKGROUND: Total knee arthroplasty (TKA) significantly improves pain and restores a considerable degree of function. However, improvements are needed to increase patient satisfaction and restore kinematics to allow more physically demanding activities that active patients consider important. The aim of our study was to compare the alignment and motion of kinematically and mechanically aligned TKAs. METHODS: A patient specific musculoskeletal computer simulation was used to compare the tibio-femoral and patello-femoral kinematics between mechanically aligned and kinematically aligned TKA in 20 patients...
May 29, 2017: Knee
https://www.readbyqxmd.com/read/28571920/mobile-bearing-medial-unicompartmental-knee-arthroplasty-in-patients-whose-lifestyles-involve-high-degrees-of-knee-flexion-a-10-14year-follow-up-study
#9
Won Sik Choy, Kwang Won Lee, Ha Yong Kim, Kap Jung Kim, Young Sub Chun, Dae Suk Yang
BACKGROUND: Because Asian populations have different lifestyles, such as squatting and sitting on the floor, from those of Western populations, it is possible that the clinical results and survival rate of unicompartmental knee arthroplasty (UKA) for Asian patients may be different. This study described outcomes of mobile bearing medial UKA for Korean patients. METHODS: A total of the 164 knees treated with mobile bearing UKAs in 147 patients (14 males and 133 females) were reviewed...
May 29, 2017: Knee
https://www.readbyqxmd.com/read/28559006/acl-graft-metabolic-activity-assessed-by-18-fdg-pet-mri
#10
Robert A Magnussen, Katherine Binzel, Jun Zhang, Wenbo Wei, Melanie U Knopp, David C Flanigan, Timothy E Hewett, Christopher C Kaeding, Michael V Knopp
BACKGROUND: To demonstrate the use of (18)Fluorodeoxyglucose positron emission tomography (PET) and magnetic resonance imaging (MRI) in combination ((18)FDG-PET) to assess the metabolic activity of ACL graft tissue and evaluate the utility of this technique for ligament imaging. METHODS: Twenty-one knees with intact ACL grafts in 19 patients at multiple time points following ACL reconstruction were recruited to participate. PET-MRI imaging was performed using a custom device to place knees in the same position for both studies...
May 27, 2017: Knee
https://www.readbyqxmd.com/read/28559005/tibial-insertions-of-the-anterior-cruciate-ligament-and-the-anterior-horn-of-the-lateral-meniscus-a-histological-and-computed-tomographic-study
#11
Masashi Kusano, Yasukazu Yonetani, Tatsuo Mae, Ken Nakata, Hideki Yoshikawa, Konsei Shino
BACKGROUND: A positional relationship between the anterior cruciate ligament (ACL) and the anterior horn of the lateral meniscus (AHLM) has not previously been a topic of interest in the literature because the AHLM is already known to be obviously adjacent to the ACL and is assumed as a lateral border. The objective of this study was to investigate the positional anatomic relationship between the ACL and AHLM by histological evaluation of sequential slices and computed tomography (CT) of the tibial insertion sites...
May 27, 2017: Knee
https://www.readbyqxmd.com/read/28554796/detection-of-bone-defects-around-zirconium-component-after-total-knee-arthroplasty
#12
Yukihide Minoda, Kazumasa Yamamura, Kazutaka Sugimoto, Shigekazu Mizokawa, Shingo Baba, Hiroaki Nakamura
BACKGROUND: It is difficult to detect bone defects caused by loosening or osteolysis around the femoral component after total knee arthroplasty (TKA) because the thick metal hinders visualization of bone defects. Previous reports have shown that tomosynthesis, a novel tomographic technique, is advantageous over fluoroscopically guided plain radiography, computed tomography (CT) and magnetic resonance imaging (MRI) for the early detection of bone defects around a conventional cobalt-chromium alloy component...
May 26, 2017: Knee
https://www.readbyqxmd.com/read/28552192/long-term-outcome-of-knee-arthroplasty-in-the-setting-of-pigmented-villonodular-synovitis
#13
Matthew T Houdek, Maurizio Scorianz, Cody C Wyles, Robert T Trousdale, Franklin H Sim, Michael J Taunton
BACKGROUND: Pigmented villonodular synovitis (PVNS) is a rare, benign proliferation of the synovium, commonly affecting the knee. Arthroplasty can successfully manage arthrosis in this population; however, outcome data is limited. The purpose of this study was to investigate the oncologic and functional outcome of patients undergoing total knee arthroplasty (TKA) in the setting of PVNS. METHODS: 48 patients were identified at our institution with histologically confirmed PVNS that subsequently received TKA...
May 25, 2017: Knee
https://www.readbyqxmd.com/read/28551203/single-limb-landing-biomechanics-are-altered-and-patellar-tendinopathy-related-pain-is-reduced-with-acute-infrapatellar-strap-application
#14
Adam B Rosen, Jupil Ko, Cathleen N Brown
BACKGROUND: Patellar tendinopathy, a common condition of the knee, is often treated with patellar tendon straps to control pain during dynamic activity. Little is known regarding their effect on pain, landing kinematics and kinetics with their application. The purpose of this study was to determine if patellar tendon straps influenced pain, kinematics at landing and ground reaction forces in individuals with patellar tendinopathy versus healthy controls. METHODS: Thirty participants with patellar tendinopathy and 30 controls participated...
May 24, 2017: Knee
https://www.readbyqxmd.com/read/28551202/rapidly-growing-non-tuberculous-mycobacteria-infection-of-prosthetic-knee-joints-a-report-of-two-cases
#15
Manyoung Kim, Chul-Won Ha, Jae Won Jang, Yong-Beom Park
Non-tuberculous mycobacteria (NTM) cause prosthetic knee joint infections in rare cases. Infections with rapidly growing non-tuberculous mycobacteria (RGNTM) are difficult to treat due to their aggressive clinical behavior and resistance to antibiotics. Infections of a prosthetic knee joint by RGNTM have rarely been reported. A standard of treatment has not yet been established because of the rarity of the condition. In previous reports, diagnoses of RGNTM infections in prosthetic knee joints took a long time to reach because the condition was not suspected, due to its rarity...
May 24, 2017: Knee
https://www.readbyqxmd.com/read/28551201/multifactorial-analysis-of-dissatisfaction-after-primary-total-knee-replacement
#16
Kunal Dhurve, Corey Scholes, Sherif El-Tawil, Aseem Shaikh, Lai Kah Weng, Kumbelin Levin, Brett Fritsch, David Parker, Myles Coolican
BACKGROUND: The aims of this study were to identify the prevalence and causes of dissatisfaction in a cohort of private practice patients, and to compare the psychological characteristics of dissatisfied patients to matched, satisfied controls. METHODS: Unilateral TKR patients were evaluated to identify those dissatisfied with their TKR. Dissatisfied and satisfied patients were matched in terms of age, gender, follow-up duration and body mass index (BMI). Psychological evaluation was performed using the Pain Catastrophizing Scale (PCS), Depression, Anxiety and Stress Scale (DASS) and the Multidimensional Health Locus of Control (MHLC) scale...
May 24, 2017: Knee
https://www.readbyqxmd.com/read/28549818/range-of-motion-and-complications-following-primary-repair-versus-reconstruction-of-the-anterior-cruciate-ligament
#17
Jelle P van der List, Gregory S DiFelice
INTRODUCTION: Recently, there has been a resurgence of interest in primary anterior cruciate ligament (ACL) repair. The procedure is less invasive than ACL reconstruction, yet studies assessing early postoperative course are lacking. Goal therefore was to assess postoperative range of motion (ROM), complications and operative times following primary repair and compare this to the gold standard of reconstruction. METHODS: A retrospective study was performed for which 52 repair and 90 reconstruction patients could be included...
May 24, 2017: Knee
https://www.readbyqxmd.com/read/28549817/static-tensioning-promotes-hamstring-tendons-force-relaxation-more-reliably-than-cycling-tensioning
#18
Sérgio Rocha Piedade, Inácio Maria Dal Fabbro, Martha Maria Mischan, Cezar Piedade, Nicola Maffulli
BACKGROUND: Graft elongation might be a major reason for increased anterior laxity after anterior cruciate ligament (ACL) reconstruction. This study analyzed the force relaxation values and their stabilization when single strands of the gracilis and semitendinosus tendons underwent cyclic and static tensioning at 2.5% strain level, and compared the efficiency of static and cyclic tensioning in promoting force relaxation. METHODS: Eighteen gracilis tendons and 18 semitendinosus tendons from nine male cadavers (mean age: 22...
May 23, 2017: Knee
https://www.readbyqxmd.com/read/28532997/the-influence-of-varus-and-valgus-deviation-on-patellar-kinematics-in-healthy-knees-an-exploratory-cadaver-study
#19
Michael Worlicek, Benedikt Moser, Günther Maderbacher, Raphael Zentner, Florian Zeman, Joachim Grifka, Armin Keshmiri
BACKGROUND: Patellofemoral instability may lead to osteoarthritis, anterior knee pain, and patellar luxation. The purpose of this study was to conduct an exploratory investigation into the difference of patellar kinematics of healthy knees during extension/flexion cycles in neutral, varus and valgus alignment. METHODS: The three-dimensional patellar kinematics of 10 lower extremities of whole body cadavers were examined during passive motion, in neutral position, and under valgus and varus stress...
May 19, 2017: Knee
https://www.readbyqxmd.com/read/28526202/capnocytophaga-canimorsus-an-underestimated-cause-of-periprosthetic-joint-infection
#20
Marcel Orth, Patrick Orth, Konstantinos Anagnostakos
BACKGROUND: Periprosthetic joint infection (PJI) is a major clinical problem in orthopedic surgery. Capnocytophaga canimorsus (C. canimorsus) is an unusual and hardly detectable bacterium. A review of the literature indicates that C. canimorsus affects mainly immunocompromised patients. It has not been reported to cause periprosthetic joint infections in immunocompetent patients so far. This case report aims to raise awareness of C. canimorsus in orthopedic surgery with special regard to joint arthroplasty...
May 16, 2017: Knee
journal
journal
31916
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"