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Journal of Arthroplasty

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https://www.readbyqxmd.com/read/28438455/lesser-trochanter-size-on-plain-anteroposterior-radiographs-correlates-with-native-femoral-anteversion
#1
Michael C Worlicek, Michael L Wörner, Benjamin S Craiovan, Florian Zeman, Joachim Grifka, Tobias F Renkawitz, Markus Weber
BACKGROUND: Assessing femoral version in orthopedic surgery is important for preoperative planning of total hip arthroplasty, especially for recognizing excessive anteversion or retroversion. The present study addressed the following: (1) Is the position of the lesser trochanter correlated to the femoral neck axis? (2) If so, may femoral version be assessed by means of plain pelvic radiographs? METHODS: Three-dimensional computed tomography scans of 60 patients undergoing minimally invasive cement-free total hip arthroplasty were retrospectively analyzed, particularly with regard to the relation between the femoral neck axis and the lesser trochanter, the femoral version, and the size of the projected lesser trochanter in different rotational positions...
April 1, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28434698/influence-of-component-rotation-in-total-knee-arthroplasty-on-tibiofemoral-kinematics-a-cadaveric-investigation
#2
Guenther Maderbacher, Armin Keshmiri, Hans R Springorum, Hermann Maderbacher, Joachim Grifka, Clemens Baier
BACKGROUND: Physiological tibiofemoral kinematics have been shown to be important for good knee function after total knee arthroplasty (TKA). The purpose of the present study was to investigate the influence of component rotation on tibiofemoral kinematics during knee flexion. We asked which axial component alignment best reconstructs physiological tibiofemoral kinematics and which combinations should be avoided. METHODS: Ten healthy cadaveric knees were examined...
April 1, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28438451/common-medical-comorbidities-correlated-with-poor-outcomes-in-hip-periprosthetic-infection
#3
Daniel J Cunningham, Joseph J Kavolus, Michael P Bolognesi, Samuel S Wellman, Thorsten M Seyler
BACKGROUND: Periprosthetic infection has been linked to risk factors such as diabetes, obesity, and smoking among others. This study examined the relationship between common patient comorbidities and hip periprosthetic infection outcomes. METHODS: We retrospectively reviewed the records of 149 culture-positive periprosthetic hip infections at our tertiary care center that underwent treatment between 2005 and 2015. Baseline characteristics and common comorbidities were analyzed with relation to rates of successfully treated infection, total surgeries for infection, and cumulative length of hospitalization using multivariate analysis...
March 31, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28434693/letter-to-the-editor-on-abnormally-high-dislocation-rates-of-total-hip-arthroplasty-after-spinal-deformity-surgery
#4
LETTER
Andrea Piazzolla, Giuseppe Solarino, Davide Bizzoca, Biagio Moretti
No abstract text is available yet for this article.
March 30, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28442185/modified-frailty-index-is-an-effective-risk-assessment-tool-in-primary-total-knee-arthroplasty
#5
Robert P Runner, Jaime L Bellamy, CatPhuong Cathy L Vu, Greg A Erens, Mara L Schenker, George N Guild
BACKGROUND: "Frailty" is a marker of physiological decline of multiple organ systems, and the frailty index identifies patients who are more susceptible to postoperative complications. The purpose of this study is to validate the modified frailty index (MFI) as a predictor of postoperative complications, reoperations, and readmissions in patients who underwent primary total knee arthroplasty (TKA). METHODS: The American College of Surgeons National Surgical Quality Improvement Program database from 2005 to 2014 was queried by the Current Procedural Terminology code for primary TKA (27447)...
March 29, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28434697/poor-outcomes-of-irrigation-and-debridement-in-acute-periprosthetic-joint-infection-with-antibiotic-impregnated-calcium-sulfate-beads
#6
Michael A Flierl, Brian M Culp, Kamil T Okroj, Bryan D Springer, Brett R Levine, Craig J Della Valle
BACKGROUND: One proposed strategy to increase the success of irrigation and debridement with implant retention for the treatment of acute periprosthetic joint infection (PJI) is the use of dissolvable antibiotic-impregnated calcium sulfate beads to provide a local depot of antibiotics. The purpose of this study was to evaluate the outcome of such an approach. METHODS: Thirty-two patients with acute hematogenous (18 patients; 1 bilateral) or acute postoperative (14 patients) PJIs who underwent irrigation and debridement with implant retention and addition of antibiotic-impregnated calcium sulfate beads were retrospectively reviewed...
March 29, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28434696/complete-eradication-of-biofilm-from-orthopedic-materials
#7
Jeffrey T Leary, Matthew M Werger, William H Broach, Lindsey N Shaw, Brandon G Santoni, Thomas L Bernasek, Steven T Lyons
BACKGROUND: Interest exists in finding alternatives to current management strategies in periprosthetic joint infections, which typically include a 2-stage revision with placement of an antibiotic spacer and delayed placement of a new implant. We studied the efficacy of autoclaving, ultrasonication, and mechanical scrubbing for sterilization and biofilm eradication on infected cobalt-chrome discs. METHODS: Strains of Staphylococcus aureus MRSA252 or Staphylococcus epidermidis RP62A were grown on the discs...
March 29, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28438452/muscle-damage-after-total-hip-arthroplasty-through-the-direct-anterior-approach-for-developmental-dysplasia-of-the-hip
#8
Masashi Kawasaki, Yukiharu Hasegawa, Toshiaki Okura, Satoshi Ochiai, Takayoshi Fujibayashi
BACKGROUND: Total hip arthroplasty (THA) through the direct anterior approach (DAA) is known to cause less muscle damage than other surgical approaches. However, more complex primary cases, such as developmental dysplasia of the hip (DDH), might often cause muscle damage. The objective of the present study was to clarify the muscle damage observed 1 year after THA through the DAA for DDH using magnetic resonance imaging. METHODS: We prospectively compared the muscle cross-sectional area (M-CSA) and fatty atrophy (FA) in muscles by magnetic resonance imaging and the Harris hip score before and at 1-year follow-up after THA through the DAA in 3 groups: 37 patients with Crowe group 1 DDH (D1), 13 patients with Crowe group 2 and 3 DDH (D2 + 3), and 12 patients with osteonecrosis as a control...
March 27, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28438449/ankylosing-spondylitis-increases-perioperative-and-postoperative-complications-after-total-hip-arthroplasty
#9
Daniel J Blizzard, Colin T Penrose, Charles Z Sheets, Thorsten M Seyler, Michael P Bolognesi, Christopher R Brown
BACKGROUND: Ankylosing spondylitis (AS) is a chronic autoimmune spondyloarthropathy that primarily affects the axial spine and hips. Progressive disease leads to pronounced spinal kyphosis, positive sagittal balance, and altered biomechanics. The purpose of this study is to determine the complication profile of patients with AS undergoing total hip arthroplasty (THA). METHODS: The Medicare sample was searched from 2005 to 2012 yielding 1006 patients with AS who subsequently underwent THA...
March 27, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28438454/10-year-follow-up-wear-analysis-of-marathon-highly-cross-linked-polyethylene-in-primary-total-hip-arthroplasty
#10
Jared S Bookman, Ian D Kaye, Kevin K Chen, Fredrick F Jaffe, Ran Schwarzkopf
BACKGROUND: Short-term and intermediate-term wear rates for highly cross-linked polyethylene (HCLPE) liners in total hip arthroplasty (THA) are significantly lower than published rates for traditional polyethylene liners. The aim of this study was to report the longest-to-date follow-up of a specific HCLPE liner. METHODS: A series of 35 THAs using a specific HCLPE liner were reviewed. Anteroposterior radiographs were reviewed for femoral head penetration, the presence of femoral and/or acetabular osteolysis, long-term survival, total wear, and wear rates in all patients...
March 23, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28434694/a-prospective-randomized-trial-of-mini-incision-posterior-and-2-incision-total-hip-arthroplasty-minimum-5-year-follow-up
#11
Robert A Sershon, Matthew W Tetreault, Craig J Della Valle
BACKGROUND: We previously described the results of a randomized controlled trial of mini-posterior vs 2-incision total hip arthroplasty and were unable to demonstrate significant differences in early outcomes. As less-invasive anterior approaches remain popular, the purpose of this report was to re-examine the outcomes at a minimum 5-year follow-up. METHODS: Seventy-two patients undergoing primary total hip arthroplasty were randomized to a mini-posterior or 2-incision approach...
March 23, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28433426/initial-stability-of-cemented-vs-cementless-tibial-components-under-cyclic-load
#12
Paul D Crook, John R Owen, Shane R Hess, Samer M Al-Humadi, Jennifer S Wayne, William A Jiranek
BACKGROUND: Cement fixation of total knee components remains the gold standard despite resurgence in cementless fixation with the goal of long-term durable fixation. Initial stability is paramount to achieve bony ingrowth of cementless components. METHODS: Twelve cemented and cementless tibial baseplates were implanted into sawbones and tested using a physiological medial-lateral load distribution for 10,000 cycles to represent 8 weeks of in vivo function. Micromotion was measured at 5 locations around the baseplate during loading...
March 23, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28413142/outcomes-of-modular-dual-mobility-acetabular-components-in-revision-total-hip-arthroplasty
#13
E Grant Sutter, Taylor R McClellan, David E Attarian, Michael P Bolognesi, Paul F Lachiewicz, Samuel S Wellman
BACKGROUND: There is a high rate of dislocation after revision total hip arthroplasty. This study evaluated the outcomes of 1 modular dual mobility component in revision total hip arthroplasty in patients at high risk of dislocation. METHODS: We reviewed 64 revisions performed in 27 (42%) patients for recurrent dislocation, 16 (25%) for adverse local tissue reaction, 11 (17%) for reimplantation infection, and 10 (16%) for aseptic loosening, malposition, or fracture...
March 23, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28343829/corrigendum-to-metal-on-metal-or-ceramic-on-ceramic-for-cementless-total-hip-arthroplasty-a-meta-analysis-the-journal-of-arthroplasty-31-2016-2637-2645
#14
Young-Kyun Lee, Byung-Ho Yoon, Yun Seong Choi, Woo-Lam Jo, Yong-Chan Ha, Kyung-Hoi Koo
No abstract text is available yet for this article.
March 23, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28434695/the-influence-of-a-failed-irrigation-and-debridement-on-the-outcomes-of-a-subsequent-2-stage-revision-knee-arthroplasty
#15
Scott R Nodzo, Keely K Boyle, Allina A Nocon, Michael W Henry, David J Mayman, Geoffrey H Westrich
BACKGROUND: Previous work has suggested a failed irrigation and debridement (I&D) before a 2-stage exchange negatively impacts the outcome of the subsequent 2-stage revision. METHODS: This was a retrospective review of 132 patients who underwent a 2-stage exchange without prior I&D (2-Stage), and 45 patients had a failed I&D before their 2-stage exchange (I&D+2Stage) between April 2009 and April 2015. Charts were reviewed for patient demographics, presenting inflammatory laboratory values, type of antibiotic spacer used, surgical details, microbiology data, length of postoperative antibiotic treatment, and reoperation...
March 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28433425/effect-of-spinal-fusion-surgery-on-total-hip-arthroplasty-outcomes-a-matched-comparison-study
#16
Jing Loong Moses Loh, Lei Jiang, Hwei Chi Chong, Seng Jin Yeo, Ngai Nung Lo
BACKGROUND: Studies regarding postoperative outcomes after primary total hip arthroplasty (THA) in patients who have comorbid factors tend to focus on medical diseases. However, there is a paucity of literature examining the effect of a patient's orthopedic surgical history on outcomes after THA. Significantly, there are currently no studies on the effect of spinal fusion surgery on THA outcomes. METHODS: A review of 82 consecutive patients who had prior spinal fusion surgery who underwent elective THA from January 1, 2006 to December 31, 2015, was conducted...
March 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28433424/letter-to-the-editor-on-day-of-surgery-and-surgical-start-time-affect-hospital-length-of-stay-after-total-hip-arthroplasty
#17
LETTER
Borja de la Hera, María Alvarez-Postigo, Renato Delfino, Diego Garcia-Garcia, Maria J Rayo
No abstract text is available yet for this article.
March 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28416253/mechanical-stability-of-the-taper-connection-of-large-metal-femoral-heads-with-adapter-sleeves-in-total-hip-arthroplasty-analyzed-using-explicit-finite-element-simulations
#18
Danny Vogel, Adrian Falkenberg, Sarah Bierbaum, Christian Schulze, Rainer Bader, Daniel Kluess
BACKGROUND: Large diameter heads (LDHs) of metal-on-metal bearings in total hip arthroplasty provide increased range of motion and reduced dislocation rates. However, major concerns grew over high wear rates from the modular connection between femoral stem and head, especially in combination with adapter sleeves. METHODS: A computational study on the taper connection stability of LDH (50 mm) with adapter sleeves of different lengths (S, M, L, and XL) compared with a standard femoral head (32 mm) without adapter sleeves was conducted using explicit finite element analyses...
March 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28413140/is-day-of-surgery-associated-with-adverse-clinical-and-economic-outcomes-following-primary-total-knee-arthroplasty
#19
Matthew R Boylan, Dean C Perfetti, Qais Naziri, Aditya V Maheshwari, Carl B Paulino, Michael A Mont
BACKGROUND: As orthopedics transition to value-based purchasing, hospitals and providers are incentivized to identify inefficiencies of care delivery. In our experience, weekends are characterized by decreased staffing of ancillary services to coordinate patient discharges, which can lead to prolonged hospital stays for many of our primary total knee arthroplasty (TKA) admissions. METHODS: We identified 115,053 patients who underwent primary TKA on a weekday between 2009 and 2013 in New York State...
March 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28413139/evaluation-of-extensor-mechanism-in-revision-knee-arthroplasty
#20
Vadym Zhamilov, Vasfi Karatosun, Serpil Kalkan, Bayram Unver, Izge Gunal
BACKGROUND: The success of revision total knee arthroplasty depends on adequate exposure that does not produce complications. The purpose of this study was to compare the results of revision total knee arthroplasty between V-Y quadricepsplasty (QP) and quadriceps snip (QS) approaches. METHODS: In the study, 92 knees with follow-up of 12-108 months which were operated by using QP (55) and QS (37) were evaluated retrospectively. Measurements were taken by using universal transparent goniometer, also varus valgus deformities, knee flexion angles, instability, Hospital for Special Surgery and Lower Extremity Functional Scale scores, functional condition of the knee and activity levels of the patients were evaluated cross-sectionally...
March 22, 2017: Journal of Arthroplasty
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