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Hip preservation

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https://www.readbyqxmd.com/read/28430719/intertrochanteric-osteotomy-for-femoral-neck-non-union-does-undercorrection-result-in-an-acceptable-rate-of-femoral-neck-union
#1
Brandon J Yuan, David W Shearer, David P Barei, Sean E Nork
OBJECTIVES: To analyze the radiographic outcomes of intertrochanteric osteotomy for the treatment of femoral neck non-union with "undercorrection" of the Pauwels' angle and relative preservation of the proximal femoral anatomy. DESIGN: Retrospective cohort study SETTING:: Level-1 trauma center PATIENTS:: Thirty-two patients with established femoral neck non-unions that had been treated with intertrochanteric osteotomy were retrospectively identified through Current Procedural Terminology (CPT) codes...
April 18, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28407199/comprehensive-geriatric-assessment-for-prevention-of-delirium-after-hip-fracture-a-systematic-review-of-randomized-controlled-trials
#2
Lynn Shields, Victoria Henderson, Robert Caslake
OBJECTIVES: To assess the efficacy of comprehensive geriatric assessment (CGA) in prevention of delirium after hip fracture. DESIGN: Systematic review and metaanalysis. SETTING: Ward based models on geriatrics wards and visiting team based models on orthopaedics wards were included. PARTICIPANTS: Four trials (three European, one U.S.; 973 participants) were identified. Two assessed ward-based, and two assessed team-based interventions...
April 13, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28405731/reduced-bone-mass-and-preserved-marrow-adipose-tissue-in-patients-with-inflammatory-bowel-diseases-in-long-term-remission
#3
C M Bastos, I M Araújo, M H Nogueira-Barbosa, C E G Salmon, F J A de Paula, L E A Troncon
Bone marrow adipose tissue has not been studied in patients with inactive inflammatory bowel disease. We found that these patients have preserved marrow adiposity even with low bone mass. Factors involved in bone loss in active disease may have long-lasting effects but do not seem to affect bone marrow adiposity. INTRODUCTION: Reduced bone mass is known to occur at varying prevalence in patients with inflammatory bowel diseases (IBD) because of inflammation, malnutrition, and steroid therapy...
April 12, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28391517/preoperative-digital-planning-versus-postoperative-outcomes-in-total-hip-arthroplasty-using-a-calcar-guided-short-stem-frequent-valgization-can-be-avoided
#4
Karl Philipp Kutzner, Joachim Pfeil, Mark Predrag Kovacevic
INTRODUCTION: Modern total hip arthroplasty is largely dependent on the successful preservation of hip geometry. Thus, a successful implementation of the preoperative planning is of great importance. The present study evaluates the accuracy of anatomic hip reconstruction predicted by 2D digital planning using a calcar-guided short stem of the newest generation. METHODS: A calcar-guided short stem was implanted in 109 patients in combination with a cementless cup using the modified anterolateral approach...
April 8, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28376363/the-effect-of-post-sintering-treatments-on-the-fatigue-and-biological-behavior-of-ti-6al-4v-eli-parts-made-by-selective-laser-melting
#5
M Benedetti, E Torresani, M Leoni, V Fontanari, M Bandini, C Pederzolli, C Potrich
Fatigue resistance and biocompatibility are key parameters for the successful implantation of hard-tissue prostheses, which nowadays are more and more frequently manufactured by selective laser melting (SLM). For this purpose, the present paper is aimed at investigating the effect of post-sintering treatments on the fatigue behavior and biological properties of Ti samples produced by SLM. After the building process, all samples are heat treated to achieve a complete stress relief. The remaining ones are tribofinished with the aim of reducing the surface roughness of the as-sintered condition...
March 28, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28373951/vascular-coloration-for-anatomical-study-of-the-pelvis-and-hip-implications-in-hip-preservation-surgery
#6
Jorge Chahla, George Sanchez, Gilbert Moatshe, Abigail Richards, Christiaan J Van Der Walt, Cecilia Pascual-Garrido
Hip preservation surgical techniques have steadily increased in the recent past. Therefore, precise knowledge of the vascular system of the hip and pelvis is critical for avoidance of possibly devastating complications during surgery. A colored latex injection in the common iliac artery of cadavers allows for a complete staining of the hip and pelvis vascular system. This technique creates more resilient vessels, whereas coloration with dye causes the vessels to be highly visible in comparison with the surrounding tissue...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28362049/robotic-arm-assisted-total-hip-arthroplasty-results-in-smaller-acetabular-cup-size-in-relation-to-the-femoral-head-size-a-matched-pair-controlled-study
#7
Carlos Suarez-Ahedo, Chengcheng Gui, Timothy J Martin, Sivashankar Chandrasekaran, Parth Lodhia, Benjamin G Domb
PURPOSE: To compare the acetabular component size relative to the patient's native femoral head size between conventional THA (CTHA) approach and robotic-arm assisted THA (RTHA) to infer which of these techniques preserved more acetabular bone. METHODS: Patients were included if they had primary osteoarthritis (OA) and underwent total hip replacement between June 2008 and March 2014. Patients were excluded if they had missing or rotated postoperative anteroposterior radiographs...
March 31, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28361003/case-report-primary-osteonecrosis-associated-with-thrombophilia-hypofibrinolysis-and-worsened-by-testosterone-therapy
#8
Michael Ian Jarman, Kevin Lee, Ariel Kanevsky, Sarah Min, Ilana Schlam, Chris Mahida, Ali Huda, Alexander Milgrom, Naila Goldenberg, Charles J Glueck, Ping Wang
BACKGROUND: Familial and acquired thrombophilia are often etiologic for idiopathic hip and jaw osteonecrosis (ON), and testosterone therapy (TT) can interact with thrombophilia, worsening ON. CASE PRESENTATION: Case 1: A 62-year-old Caucasian male (previous deep venous thrombosis), on warfarin 1 year for atrial fibrillation (AF), had non-specific right hip-abdominal pain for 2 years. CT scan revealed bilateral femoral head ON without collapse. Coagulation studies revealed Factor V Leiden (FVL) heterozygosity, 4G/4G plasminogen activator inhibitor (PAI) homozygosity, high anti-cardiolipin (ACLA) IgM antibodies, and endothelial nitric oxide (NO) synthase (eNOS) T786C homozygosity (reduced conversion of L-arginine to NO, required for bone health)...
2017: BMC Hematology
https://www.readbyqxmd.com/read/28341184/global-fit-concept-in-revision-hip-arthroplasty-for-cementless-press-fit-femoral-stems
#9
F Canovas, P LeBeguec, J Batard, F Gaillard, L Dagneaux
A revision stem may be required after a femoral extended trochanteric osteotomy (ETO) is made during revision hip arthroplasty. The two main complications of straight cementless femoral stems are subsidence due to inadequate osteointegration and stress-shielding. We will describe an original revision method with ETO that uses a straight cementless stem. The goal of this method was to achieve the most extensive press-fit possible during stem implantation to improve the transmission of stresses to the bone and to prevent reduction in bone density...
March 21, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28318867/efficacy-of-alendronate-for-the-prevention-of-bone-loss-in-calcar-region-following-total-hip-arthroplasty
#10
Yohei Yukizawa, Yutaka Inaba, Naomi Kobayashi, Hyonmin Choe, So Kubota, Tomoyuki Saito
BACKGROUND: Bone mineral density (BMD) loss around femoral implants, particularly in the proximal femur, is a common outcome after total hip arthroplasty. Previous studies reported the prevention of postsurgical decrease in BMD with the use of osteoporosis drug therapy. This randomized study evaluated the efficacy of alendronate and alfacalcidol for preserving BMD over a long-term follow-up. METHODS: Sixty consecutive patients with hip osteoarthritis who had undergone primary cementless total hip arthroplasty were randomly assigned to an alendronate (n = 20), alfacalcidol (n = 18), or control (n = 22) group...
February 27, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28318866/innovations-in-joint-preservation-procedures-for-the-dysplastic-hip-the-periacetabular-osteotomy
#11
Cecilia Pascual-Garrido, Michael D Harris, John C Clohisy
The Bernese periacetabular osteotomy is an effective treatment for symptomatic developmental dysplasia in the prearthritic young adult hip. Refinements in the periacetabular osteotomy technique and perioperative management have markedly improved the clinical outcomes and recovery in these patients. We will review the clinical presentation of acetabular dysplasia, indications for surgery, perioperative management, and contemporary refinements in technique including refined acetabular reduction, adjunctive hip arthroscopy, femoral head-neck osteochondroplasty, femoral procedures, and rapid recovery protocols...
February 14, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28316958/comprehensive-review-of-advancements-in-hip-arthroscopy
#12
REVIEW
Deuk-Soo Hwang, Chang-Kyun Noh
Hip arthroscopy is currently being leveraged in the diagnosis and treatment of a wide range of hip joint problems. In fact, great advancements in hip arthroscopy have resulted in an ever-expanding number of indications to which it is being applied. Minimally invasive hip arthroscopy allows for quicker initiation of rehabilitation and has attracted much attention as the field becomes increasingly focused on surgeries designed to preserve joints. This review aims to summarize the recent advances, applications, and impact of hip arthroscopy...
March 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28316350/peek-and-cfr-peek-as-alternative-bearing-materials-to-uhmwpe-in-a-fixed-bearing-total-knee-replacement-an-experimental-wear-study
#13
Claire L Brockett, Silvia Carbone, John Fisher, Louise M Jennings
New bearing materials for total joint replacement have been explored as the need to improve longevity and enhance performance is driven by the changing demands of the patient demographic. Carbon-reinforced PEEK has demonstrated good wear characteristics in experimental wear simulation in both simple geometry pin-on-plate studies and in total hip joint replacement. Carbon reinforced PEEK CFR-PEEK has the potential to reduce tibial insert thickness and preserve bone in the knee. This study investigated the wear performance of PEEK and CFR-PEEK in a low conformity total knee replacement configuration...
March 15, 2017: Wear: An International Journal on the Science and Technology of Friction Lubrication and Wear
https://www.readbyqxmd.com/read/28315184/epiphyseal-arterial-network-and-inferior-retinacular-artery-seem-critical-to-femoral-head-perfusion-in-adults-with-femoral-neck-fractures
#14
Dewei Zhao, Xing Qiu, Benjie Wang, Zihua Wang, Wei Wang, Jun Ouyang, Rona M Silva, Xiaotian Shi, Kai Kang, Dachuan Xu, Chuang Li, Shizhen Zhong, Yu Zhang, Kent E Pinkerton
BACKGROUND: A better understanding of the blood supply of the femoral head is essential to guide therapeutic strategies for patients with femoral neck fractures. However, because of the limitations of conventional techniques, the precise distribution and characteristics of intraosseous arteries of the femoral head are not well displayed. QUESTIONS/PURPOSES: To explore the characteristics and interconnections of the intraosseous vessel system between different areas of the femoral head and the possible blood supply compensatory mechanism after femoral neck fracture...
March 17, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28298057/defining-the-substantial-clinical-benefit-after-arthroscopic-treatment-of-femoroacetabular-impingement
#15
Benedict U Nwachukwu, Brenda Chang, Kara Fields, Brian J Rebolledo, Danyal H Nawabi, Bryan T Kelly, Anil S Ranawat
BACKGROUND: The minimal clinically important difference (MCID) has been defined in orthopaedics and is the smallest change that a patient considers meaningful. Less is known about improvements that the patient perceives as clinically considerable, or the substantial clinical benefit (SCB). For the young, highly functioning patient cohort with femoroacetabular impingement (FAI), the SCB is an important measure of clinical success. PURPOSE: To derive the SCB for FAI treatment and identify outcome score thresholds and patient variables predictive of the SCB...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28291145/isolated-head-and-liner-exchange-in-revision-hip-arthroplasty
#16
David William Walmsley, James P Waddell, Emil H Schemitsch
As the number of primary total hip arthroplasties increases, so does the burden of revision procedures. The decision to revise well-fixed components in the setting of polyethylene wear and osteolysis is controversial. Modular head and liner exchange offers the advantages of reduced invasiveness, faster recovery, and bone preservation. These advantages come at the expense of higher rates of revision surgery for instability. Using the native locking mechanism for securing the new liner is preferred; however, cementing a liner into a well-fixed acetabular component is a practical alternative...
April 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28285036/stay-short-or-go-long-can-a-standard-cemented-femoral-prosthesis-be-used-at-second-stage-total-hip-arthroplasty-revision-for-infection-following-an-extended-trochanteric-osteotomy
#17
Michael J Petrie, Tim P Harrison, Simon C Buckley, Andrew Gordon, Robert M Kerry, Andrew J Hamer
BACKGROUND: The aim of this study was to review the results of the use of a cemented, standard length, taper-slip femoral component at second stage following an extended trochanteric osteotomy (ETO). METHODS: We reviewed prospectively collected data from the hospital arthroplasty database, identifying and reviewing all patients who had undergone an ETO at first-stage revision for infection, who had subsequently undergone second-stage reimplantation. RESULTS: Over 17 years, 99 patients underwent 102 2-stage procedures with ETO at first stage, with a mean follow-up of 5...
February 16, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28277592/evaluation-of-the-effects-of-the-metha-short-stem-on-periprosthetic-bone-remodelling-in-total-hip-arthroplasties-results-at-48-months
#18
Paolo D Parchi, Gianluca Ciapini, Iacopo Castellini, Claudia Mannucci, Anna Maria Nucci, Nicola Piolanti, Silvia Maffei, Michele Lisanti
INTRODUCTION: Total hip arthroplasty is one of the most performed procedures in orthopaedic surgery. Implantation of a prosthesis determines changes in the distribution of loads on the host bone, and this phenomenon, known as stress shielding, is related to the biomechanical characteristics of the implant. Usually stress shielding involves the proximal portion of the femur by reducing the mechanical strength and ability to withstand the transmitted loads. The aim of our study is to demonstrate how the use of a short hip stem reduces the stress shielding phenomenon to the proximal femur...
March 9, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28277562/role-of-cortical-bone-in-hip-fracture
#19
REVIEW
Jonathan Reeve
In this review, I consider the varied mechanisms in cortical bone that help preserve its integrity and how they deteriorate with aging. Aging affects cortical bone in two ways: extrinsically through its effects on the individual that modify its mechanical loading experience and 'milieu interieur'; and intrinsically through the prolonged cycle of remodelling and renewal extending to an estimated 20 years in the proximal femur. Healthy femoral cortex incorporates multiple mechanisms that help prevent fracture...
2017: BoneKEy Reports
https://www.readbyqxmd.com/read/28264554/hearing-improvement-in-a-j-mice-via-the-mouse-nerve-growth-factor
#20
Lixiang Gao, Ruli Ge, Gang Xie, Dandan Yao, Ping Li, Oumei Wang, Xiufang Ma, Fengchan Han
Objectives: To investigate the otoprotective effects of mouse nerve growth factor (mNGF) in A/J mice. Methods: The mice at postnatal day 7 (P7) were randomly separated into a mNGF treated group (mNGF group) and a distilled water (for injection) treated group (control group). The mNGF dissolved in distilled water or distilled water alone was given to the mice once every other day from P7 by intramuscular injection in the hips. The otoprotective effects of mNGF in A/J mice were observed in a time course manner...
March 8, 2017: Clinical and Experimental Otorhinolaryngology
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