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Meng Wang, Liang Wang, Ruqing Ye
OBJECTIVE: To examine the effects of risedronate for reducing periprosthetic bone loss after total hip arthroplasty (THA). METHODS: Two reviewers performed an electronic literature search for randomized controlled trial (RCTs) evaluating the risedronate in the management of periprosthetic bone loss after primary THA. The electronic databases include PubMed, Medline, Embase, Web of Science and the Cochrane Library from inception to January 2018. We assessed the risk of bias using the Cochrane risk-of-bias tool...
February 12, 2018: International Journal of Surgery
Tadashi Taga, Tamon Kabata, Yoshitomo Kajino, Daisuke Inoue, Takaaki Ohmori, Takashi Yamamoto, Tomoharu Takagi, Hiroyuki Tsuchiya
BACKGROUND: One of the serious postoperative complications associated with joint replacement is bacterial infection. In our recent investigations, iodine supported titanium implants demonstrated antibacterial activity in both in vitro and in vivo studies. The surfaces of the implants have porous anodic oxide layer with the antiseptic properties of iodine. According to the literature the titanium with porous anodic oxide have good osteoconductivity. But it is not clear whether the properties of iodine influence bone bonding of implants...
February 8, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
Shang-Wen Tsai, Cheng-Fong Chen, Po-Kuei Wu, Chao-Ming Chen, Wei-Ming Chen
BACKGROUND: Subsidence remains a common complication after revision hip arthroplasty which may lead to prolonged weight-bearing restrictions, leg-length discrepancies or considerable loss of function. We evaluated the effectiveness of cement augmentation in the proximal femoral metaphysis during a revision of femoral components to prevent post-operative stem subsidence. METHODS: Forty patients were enrolled. Follow-up averaged 67.7 months (range: 24-149). Twenty-seven patients had a Paprosky type II defect and 13 had a type IIIa defect...
February 7, 2018: Journal of the Chinese Medical Association: JCMA
Jarrad Stevens, Nicholas Clement, Michael Nasserallah, Michael Millar, Sam Joseph
INTRODUCTION: Periprosthetic fractures of the proximal femur place a significant burden on the patients who endure them, as well as the medical health system that supports them. The purpose of this study was to determine whether femoral cortical thickness, as an absolute measurement, is a predictor of periprosthetic fracture pattern. METHOD: A cohort of 102 patients who had sustained a periprosthetic hip fracture were retrospectively identified. This included 58 males and 44 females with a mean age of 79...
February 8, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
Markus Preis, Travis Bailey, Lucas S Marchand, Maxwell W Weinberg, Matthijs Jacxsens, Alexej Barg
BACKGROUND: The aim of this study was to assess the short-term clinical and radiographic outcomes in patients who underwent conversion of a painful tibiotalocalcaneal arthrodesis to a total ankle replacement. METHODS: Six patients with painful ankle arthrodesis after tibiotalocalcaneal arthrodesis were included in this study. In all patients, conversion to total ankle replacement was performed using a 3rd-generation, non-constrained, cementless three-component prosthesis...
December 17, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
Guo Chen, Yong Nie, Jinwei Xie, Guorui Cao, Qiang Huang, Fuxing Pei
BACKGROUND: Few studies investigate gait characteristics and symmetry of developmental dysplasia of the hip patients (Crowe II and III) after total hip arthroplasty (THA) whose leg length discrepancy (LLD) is within 20 mm. Our study aimed to explore whether gait analysis parameters in these patients can return to the level of unaffected people and how bodies compensate for the discrepancy. METHOD: A total of 45 patients who underwent cementless THA and 20 healthy controls were involved in this study prospectively...
December 21, 2017: Journal of Arthroplasty
Christoph Schnurr, Anissa Loucif, Theresa Patzer, Bernd Schellen, Johannes Beckmann, Peer Eysel
INTRODUCTION: Short stems were developed as a bone-conserving alternative especially for the young hip arthroplasty patient. Patients suffering from osteonecrosis of the femoral head are frequently younger than primary arthritis patients. The outcome of short stems in these patients remains unclear. The aim of our study was to compare mid-term survival of short stems after osteonecrosis of the femoral head (ONFH) and primary arthritis. MATERIALS AND METHODS: Data on short stem implantations over a 10-year period were collected...
February 3, 2018: Archives of Orthopaedic and Trauma Surgery
Yunus Emre Akman, Umut Yavuz, Engin Çetinkaya, Volkan Gür, Murat Gül, Bilal Demir
INTRODUCTION: We report the short-term outcomes of total hip arthroplasty(THA) in patients previously treated with Schanz osteotomy (SO). MATERIALS AND METHODS: Eighteen patients [2 male, 16 female; mean age, 55.4 (range, 50-66) years] who had undergone THA after SO were retrospectively evaluated. Clinical evaluation was performed based on the Harris hip score. Radiological evaluation was performed using full-length radiographs of the lower extremities, pelvis, and hip...
February 2, 2018: Archives of Orthopaedic and Trauma Surgery
Rianne van Ladesteijn, Holly Leslie, William A Manning, James P Holland, David J Deehan, Thomas Pandorf, Richard M Aspden
To gain initial stability for cementless fixation the acetabular components of a total hip replacement are press-fit into the acetabulum. Uneven stiffness of the acetabular bone will result in irregular deformation of the shell which may hinder insertion of the liner or lead to premature loosening. To investigate this, we removed bone cores from the ilium, ischium and pubis within each acetabulum and from selected sites in corresponding femoral heads from four cadavers for mechanical testing in unconfined compression...
January 29, 2018: Medical Engineering & Physics
Federico Giardina, Francesco Castagnini, Susanna Stea, Barbara Bordini, Maurizio Montalti, Aldo Toni
BACKGROUND: Short stems in total hip arthroplasty (THA) have recently gained increasing popularity, allowing mini-invasive exposures and bone-sparing approaches. However, long-term studies and recommendations for the routine use are not available. The aim of this report was to compare the survival rates and the reasons for revision of short stems versus conventional stems in cementless THAs, in a registry-based population. METHODS: The Registry of Prosthetic Orthopedic Implants (RIPO) was inquired about cementless THAs performed since 2000 to 2016...
January 11, 2018: Journal of Arthroplasty
Jing Wang, Dejiu Wang, Jiang Du, Zhen Lin
RATIONALE: Inflammatory pseudotumor has been commonly reported in patients undergoing total hip arthroplasty (THA). PATIENT CONCERNS: We reported a patient who had a massive intra-pelvic pseudotumour and acetabular bone defect underwent two-stage revision THA. DIAGNOSES: A new surgical strategy for pseudotumor after THA is performed. INTERVENTIONS: Thorough debridement intra-pelvic pseudotumour via Smith-Petersen approach, bone grafting on iliac medial surface and plate-screw internal fixation were performed in the first stage, followed by revision of the loosened prosthesis to a cementless primary prosthesis in the second stage...
December 2017: Medicine (Baltimore)
Shuang G Yan, Di Li, Shuai Yin, Xingyi Hua, Jian Tang, Florian Schmidutz
BACKGROUND: Short-stem total hip arthroplasty (SHA) has been increasingly used in the treatment of hip arthroplasty. However, it is unclear whether there is a superiority of SHA in periprosthetic bone remodeling over standard stem total hip arthroplasty (THA). This meta-analysis of randomized-controlled trials (RCTs) compared the periprosthetic bone remodeling after SHA and THA. METHODS: PubMed and Embase were screened for relevant publications up to May 2017. RCTs that compared periprosthetic bone remodeling with bone mineral density (BMD) changes between SHA and THA were included...
November 2017: Medicine (Baltimore)
Nirav Patel, Chukwuweike U Gwam, Anton Khlopas, Nipun Sodhi, Assem A Sultan, Sergio M Navarro, Prem Ramkumar, Steven F Harwin, Michael A Mont
The objective of this study was to evaluate implant survivorship, clinical outcomes, postoperative complications, and radiographic outcomes of cementless total knee arthroplasty (TKA) in patients who have rheumatoid arthritis (RA). Patients who underwent a primary cementless posterior-stabilized TKA and who had RA were reviewed. A total of 126 TKAs in 122 patients who had a mean follow-up of 4 years were analyzed. Implant survivorship was calculated. Postoperative clinical and radiographic follow-up was performed at approximately 6 weeks and 3 months and then annually...
January 25, 2018: Orthopedics
Shengjie Guo, Hao Tang, Yixin Zhou, Yong Huang, Hongyi Shao, Dejin Yang
BACKGROUND: Cementless hip arthroplasty is increasingly gaining popularity worldwide. Radiologic identification of osteointegration is key to confirming biologic fixation. We conducted the study reported here to determine the sensitivity and specificity of digital tomosynthesis with metal artifact reduction (TMAR), radiography, and conventional computed tomography in detecting osteointegration in cementless hip arthroplasty. METHODS: We prospectively included data for 24 patients who underwent revision hip arthroplasty in our hospital, with 13 femoral and 14 acetabular cementless components retrieved that contained solid evidence of biologic fixation...
December 29, 2017: Journal of Arthroplasty
Alexander Jahnke, Carlos A Fonseca Ulloa, Jörn Bengt Seeger, Markus Rickert, Gerhard Walter Jahnke, Gafar Adam Ahmed, Bernd Alexander Ishaque
BACKGROUND: The resultant hip force causes a varus torque which must be compensated by a shear force couple depending on the stem alignment of the prosthesis. Since the prosthesis is substantially less flexible than the bone, the interior of the femur is stiffened over the entire prosthesis length. The present study thus aims at analyzing short-stem prostheses for its elastic bending characteristics, considering inappropriate valgus alignment of the prosthetic stem. METHODS: Five short stem prostheses were implanted each in synthetic femora in a standardized manner - in neutral and valgus stem alignments...
January 19, 2018: Clinical Biomechanics
N Taniguchi, T Jinno, R Takada, D Koga, T Ando, A Okawa, H Haro
BACKGROUND: The use of screws and the presence of screw holes may cause acetabular osteolysis and implant loosening in cementless total hip arthroplasty (THA) using conventional polyethylene. In contrast this issue is not fully understood using highly cross-linked polyethylene (HXLPE), particularly in large comparative study. Therefore, we performed a case-control study to assess the influence of screw usage and screw holes on: (1) implant fixation and osteolysis, and (2) polyethylene steady-state wear rate, using cases with HXLPE liners followed up for 7-10 years postoperatively...
January 16, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
Xavier Flecher, Matthieu Ollivier, Pascal Maman, Sébastien Pesenti, Sébastien Parratte, Jean-Noël Argenson
INTRODUCTION: Due to complex anatomical considerations, results of cementless-stem total hip arthroplasty (THA) in hip fusion remain controversial compared with conventional THA. We therefore aimed to analyse 3D anatomy of the fused hip based on pre-operative computed tomography (CT) scans, functional outcomes based on the Harris Hip Score (HHS) and the Hip Disability and Osteoarthritis Outcome Score (HOOS), modifications of hip anatomy based on post-operative standardised radiography, and determine complication rate and long-term survival based on Kaplan-Meier analysis...
January 19, 2018: International Orthopaedics
Sebastian Breddam Mosegaard, Kamille Breddam Mosegaard, Nadia Bouteldja, Torben Bæk Hansen, Maiken Stilling
Bone density may influence the primary fixation of cementless implants, and poor bone density may increase the risk of implant failure. Before deciding on using total joint replacement as treatment in osteoarthritis of the trapeziometacarpal joint, it is valuable to determine the trapezium bone density. The aim of this study was to: (1) determine the correlation between measurements of bone mineral density of the trapezium obtained by dual-energy X-ray absorptiometry (DXA) scans by a circumference method and a new inner-ellipse method; and (2) to compare those to measurements of bone density obtained by computerized tomography (CT)-scans in Hounsfield units (HU)...
January 18, 2018: Journal of Functional Biomaterials
Benjamin Panzram, Ines Bertlich, Tobias Reiner, Tilman Walker, Sébastien Hagmann, Tobias Gotterbarm
BACKGROUND: Physical activity and regular participation in recreational sports gain importance in patients' lifestyle after knee arthroplasty. Cementless unicompartimental Knee replacement with the Oxford System has been introduced into clinical routine. Currently there is no data reporting on the physical activity, return to sports rate and quality of live after medial cementless Oxford Unicompartimental Knee Replacement (OUKR). METHODS: This retrospective cohort study reports on the functional outcome of the first 27 consecutive patients (30 knees) that were consecutively treated with a cementless medial OUKR between 2007 and 2009 in our hospital...
January 17, 2018: BMC Musculoskeletal Disorders
Szymon Czech, Jacek Hermanson, Piotr Rodak, Tomasz Stołtny, Łukasz Rodak, Sławomir Kasperczyk, Bogdan Koczy, Michał Mielnik
An adequate level of physical activity has a substantial effect on both mental and physical human health. Physical activity is largely dependent on the function of the musculoskeletal and articular system. One of the most frequent diseases of this system is degenerative joint disease. Due to the changing and more demanding lifestyles and patients' willingness to be involved in sports activity, the expectations of hip joint arthroplasty are becoming increasingly high. Alleviating pain ceases to be the only reason for which patients choose surgical interventions, while the expectations often include involvement in various sports...
December 2017: Journal of Human Kinetics
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