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"Joint replacement"

Li-Zhi Zhang, Jie Gao, Zhi-Cheng Zhang, Xiao-Wei Wang, Jian-Zheng Zhang, Tian-Sheng Sun
OBJECTIVE: To compare of clinical effects of different surgical methods in the treatment of elderly femoral neck fractures. METHODS: From January 2013 to June 2016, 144 elderly patients with femoral neck were treated and divided into artificial hip replacement group and cannulated screw fixation group according to the surgical methods. In the total hip arthroplasty group, there were 89 cases, 28 males and 61 females, with an average age of(84.10±3.10) years old;Hollow nail fixation group 55 cases, 20 males and 35 females, with an average age of (86...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
Timothy M Wright
The introduction of highly crosslinked forms of ultra high molecular weight polyethylene (UHMWPE) is a major development in the history of total joint replacement. The first commercially available forms of these materials are now nearing the completion of two decades of use as bearing materials for hip replacements, and the improved wear resistance afforded by the crosslinking1 has been borne out by a marked lowering of wear rates measured in vivo.
March 13, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Marshall F Newman, D Graham Lee, M Kinon Lecholop
Treatment of patients with bilateral temporomandibular joint (TMJ) ankylosis in a single-stage procedure can be challenging. The implementation of intraoperative navigation has proved beneficial by enabling faster and safer excision by providing real-time identification of vital structures. Navigation also can be used to verify site preparation for custom joint prostheses. This article seeks to establish a protocol, based on the use of intermaxillary fixation screws, to produce accurate and repeatable outcomes for the correction of bilateral TMJ ankylosis with total joint replacement in a single-stage procedure...
February 20, 2018: Journal of Oral and Maxillofacial Surgery
Fabienne Marie-Louise Robertson, Ali Abdullah Mohammed, Simon Peter Frostick
INTRODUCTION: This report describes the first known sternoclavicular joint (SCJ) replacement with a custom-made prosthesis. HISTORY: A 42-year-old male who presented post left medial clavicular excision with significant pain and limited range of motion impeding his daily activities and ability to work. The patient subsequently underwent a left SCJ arthroplasty with a custom-made prosthesis. Postoperatively, the patient suffered an anterior dislocation of the prosthetic joint which was successfully rectified and stabilized with soft tissue reconstruction, creating a pseudo-capsule from adjacent tissues of the joint...
January 2018: Journal of Orthopaedic Surgery
Y L Rodrigues, M T Mathew, L G Mercuri, J S P da Silva, B Henriques, J C M Souza
The aim of this study was to perform a literature review on the use of finite element modeling (FEM) for the evaluation of the biomechanical behavior of temporomandibular joint replacement (TMJR) devices. An electronic search of online medical and scientific literature database was conducted using selected search terms. The search identified 307 studies, of which 19 were considered relevant to this study. Of the 19 selected studies, 10 (52.6%) investigated the influence of geometry and fixation methods, while two (10...
March 8, 2018: International Journal of Oral and Maxillofacial Surgery
Vince W Lands, Ajith Malige, Aldo Carmona, Christopher R Roscher, Robert S Gayner, Jaclyn Rowbotham, William G DeLong
BACKGROUND: When critically analyzing our hospital system's rate of hypotension and acute kidney injury (AKI) after total joint arthroplasty, our incidence rates (14.54%, 6.02%) were much higher than our peers (7.17%, 2.03%) and national rates (2.0%, 3.3%). We present a multi-disciplinary management intervention that aimed to decrease overall complication rates. METHOD: A multi-disciplinary team implemented a protocol at our suburban hospital to limit complication rates after joint replacement surgery...
February 5, 2018: Journal of Arthroplasty
Christopher L Peters
No abstract text is available yet for this article.
February 12, 2018: Journal of Arthroplasty
Fernando Domínguez-Navarro, Celedonia Igual-Camacho, Antonio Silvestre-Muñoz, Sergio Roig-Casasús, José María Blasco
BACKGOUND: Balance and proprioceptive deficits are frequently persistent after total joint replacement, limiting functionality and involving altered movement patterns and difficulties in walking and maintaining postural control among patients. RESEARCH QUESTION: The goal of this systematic review was to evaluate the short- and mid-term effects of proprioceptive and balance training for patients undergoing total knee and hip replacement. METHODS: This is a systematic review of literature...
March 5, 2018: Gait & Posture
Matthew P Kelly, Heather A Prentice, Wei Wang, Brian H Fasig, Dhiren S Sheth, Elizabeth W Paxton
BACKGROUND: Previous studies evaluating reasons for 30-day readmissions following total joint arthroplasty (TJA) may underestimate hospital-based utilization of healthcare resources during a patient's episode-of-care. We sought to identify common reasons for 90-day emergency department (ED) visits and hospital readmissions following primary elective unilateral TJA. METHODS: Patients from July 1, 2012 through June 30, 2015 having primary elective TJA and at least one 90-day postoperative ED-only visit and/or readmission for any reason were identified using the Kaiser Permanente Total Joint Replacement Registry...
February 12, 2018: Journal of Arthroplasty
S L Verweij, N H Schut, R E A M Zwartelé, M L Becker
BACKGROUND: Infected joint replacements can be treated with gentamicin-containing materials for implantation. This may lead to side effects, especially in patients with impaired renal function. CASE DESCRIPTION: A 74-year-old woman underwent two surgeries for an acutely infected hip replacement. Gentamicin sponges (Garacol) were implanted during both interventions. The day after the second operation, her serum gentamicin levels had risen to toxic values. This confirmed the suspicion that she had a kidney impairment which was probably caused by the implanted gentamicin-containing sponges...
2018: Nederlands Tijdschrift Voor Geneeskunde
Sultana Monira Hussain, Yuanyuan Wang, Graham G Giles, Stephen Graves, Anita E Wluka, Flavia M Cicuttini
OBJECTIVES: To examine the associations of female reproductive and hormonal factors with incidence of total knee arthroplasty (TKA) for osteoarthritis, and whether the associations differ according to overweight/obesity status. DESIGN: This study included 22,289 women in the Melbourne Collaborative Cohort Study. Data on age at menarche, pregnancy, parity, years of menstruation, oral contraceptive pill (OCP), menopausal status and hormone replacement therapy (HRT) were collected in 1990-1994...
March 7, 2018: Arthritis & Rheumatology
Nan Xie, Nicholas Matigian, Tharindu D Vithanage, Kye Gregory, Zeyad D Nassar, Peter J Cabot, Paul Nicholas Shaw, Carl Mj Kirkpatrick, Kim-Anh Lê Cao, David Sturgess, Marie-Odile Parat
PURPOSE: To investigate the potential interplay between opioid analgesia and tumour metastasis through modulation of μ opioid receptor (MOR), Toll-like receptor 4 (TLR4) activation, and matrix degradation potential. EXPERIMENTAL DESIGN: Plasma samples were collected from 60 patients undergoing elective lower limb joint replacement pre-operatively and at 3, 6 and 24 h after surgery; pain scores were documented at the same time points. Opioid administration was recorded and converted into morphine IV equivalents...
March 6, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Christopher W Jones, Seth A Jerabek
BACKGROUND: Computer-assisted surgical (CAS) navigation has been developed with the aim of improving the accuracy and precision of total knee arthroplasty (TKA) component positioning and therefore overall limb alignment. The historical goal of knee arthroplasty has been to restore the mechanical alignment of the lower limb by aligning the femoral and tibial components perpendicular to the mechanical axis of the femur and tibia. Despite over 4 decades of TKA component development and nearly 2 decades of interest in CAS, the fundamental question remains; does the alignment goal and/or the method of achieving that goal affect the outcome of the TKA in terms of patient-reported outcome measures and/or overall survivorship? The quest for reliable and reproducible achievement of the intraoperative alignment goal has been the primary motivator for the introduction, development, and refinement of CAS navigation...
January 31, 2018: Journal of Arthroplasty
J Patel, S Lal, K Nuss, S P Wilshaw, B von Rechenberg, R M Hall, J L Tipper
Less than optimal particle isolation techniques have impeded analysis of orthopaedic wear debris in vivo. The purpose of this research was to develop and test an improved method for particle isolation from tissue. A volume of 0.018 mm3 of clinically relevant CoCrMo, Ti-6Al-4V or Si3 N4 particles was injected into rat stifle joints for seven days of in vivo exposure. Following sacrifice, particles were located within tissues using histology. The particles were recovered by enzymatic digestion of periarticular tissue with papain and proteinase K, followed by ultracentrifugation using a sodium polytungstate density gradient...
March 2, 2018: Acta Biomaterialia
Oisín Conaty, Leah Gaughan, Colum Downey, Noreen Carolan, Megan Joanne Brophy, Ruth Kavanagh, Deborah A A McNamara, Edmond Smyth, Karen Burns, Fidelma Fitzpatrick
Purpose The purpose of this paper is to improve surgical antimicrobial prophylaxis (SAP) prescribing in orthopaedic surgery using the model for improvement framework. Design/methodology/approach Orthopaedic patients receiving joint replacements, hip fracture repairs or open-reduction internal-fixation procedures were included. Antimicrobial(s); dose, time of administration and duration of SAP were evaluated for appropriateness based on the local SAP guidelines. After baseline data collection, a driver diagram was constructed with interventions devised for plan-do-study-act cycles...
March 12, 2018: International Journal of Health Care Quality Assurance
James X Liu, Albit R Paoli, Siddharth A Mahure, Joseph Bosco, Kirk A Campbell
The purpose of this study was to compare nonelective and all-cause readmission rates and to identify risk factors for readmission of total joint arthroplasty (TJA) patients who had preoperative bariatric surgery (BS) compared with TJA patients without preoperative BS. The New York Statewide Planning and Research Cooperative System database was queried to identify 343,710 TJA patients between 2005 and 2014. Three patient groups were evaluated: group 1 (patients with preoperative BS within 2 years of TJA [N=1478]); group 2 (obese patients without preoperative BS [N=60,259]); and group 3 (nonobese patients without preoperative BS [N=281,973])...
March 1, 2018: Orthopedics
Jie Xiong, Huiying Li, Xiaoya Li, Lihe Wang, Pengfei Zhao, Dongfang Meng, Zong Xing Wei, Taotao Tian
BACKGROUND: Total knee arthroplasty (TKA) is one of the most common joint replacement surgeries in the United States. Postoperative pain is still a major complication after TKA. Electroacupuncture (EA) has been commonly used in clinical practice for pain after TKA, but its effects and safety remain uncertain. This protocol is described for a systematic review to investigate the beneficial effects and safety of EA for postoperative pain after TKA. METHODS: Randomized controlled trials (RCTs) related to EA treatment of pain after TKA will be collected from 3 databases of English literature, namely PubMed, Embase, and Cochrane Library, and 4 databases of Chinese literatures, namely CBM, CNKI, VIP and Wanfang database...
March 2018: Medicine (Baltimore)
Andrea Leyton-Mange, John Andrawis, Kevin J Bozic
No abstract text is available yet for this article.
February 23, 2018: Clinical Orthopaedics and related Research
Peter L Lewis, David C Davidson, Stephen E Graves, Richard N de Steiger, William Donnelly, Alana Cuthbert
BACKGROUND: Some surgeons contend that unicompartmental knee arthroplasty (UKA) can easily be revised to a TKA when revision is called for, whereas others believe that this can be complex and technically demanding. There has been little research regarding the efficacy or rationale of using metal augmentation and tibial stem extensions when revising a UKA to a TKA. QUESTION/PURPOSES: (1) Is the use of stem extensions for the tibial component associated with increased survival when revising a UKA to a TKA? (2) Is the addition of modular augments associated with increased survival compared with stem extensions alone? (3) Is TKA design (minimally stabilized versus posterior-stabilized) or (4) tibial fixation (cemented versus cementless) associated with differences in survivorship? METHODS: Data from the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) were used to analyze implant survival after revision of a UKA to a TKA, comparing results in which tibial components were used with and without modular components...
February 23, 2018: Clinical Orthopaedics and related Research
Hideyuki Sakoda, Yuta Osaka, Keita Uetsuki, Yoshihiro Okamoto, Yuji Haishima
Ultra-high molecular weight polyethylene (UHMWPE) is the most popular material used for the articulating surface of joint replacements. Delamination is a common fatigue-related failure mode in UHMWPE components; however, the relationship between delamination resistance and fatigue crack growth has not been reported. Here, the delamination resistance of contemporary UHMWPE materials, including highly cross-linked UHMWPE (HXLPE), vitamin E blended UHMWPE (VEPE), and vitamin E blended HXLPE (VEXLPE), was measured to verify a previously proposed accelerated test method using a U-shaped sliding motion; the results were compared with those of fatigue crack growth tests...
February 26, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
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