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https://www.readbyqxmd.com/read/28330757/does-new-instrumentation-improve-radiologic-alignment-of-the-oxford%C3%A2-medial-unicompartmental-knee-arthroplasty
#1
Ki-Mo Jang, Hong Chul Lim, Seung-Beom Han, Chandong Jeong, Seul-Gi Kim, Ji-Hoon Bae
BACKGROUND: A new instrument system has been introduced to improve the accuracy and reproducibility of implant positioning in Oxford® unicompartmental knee arthroplasty (UKA). This study aimed to determine if the new instrumentation could improve postoperative implant positioning and limb alignment, and reduce the occurrence of outliers in Oxford® UKA. METHODS: A total of 77 cases of Oxford® UKA with the new instrumentation were included. Individual matching for the conventional instrument group was performed according to age, sex, and body mass index...
March 19, 2017: Knee
https://www.readbyqxmd.com/read/28328562/treatment-of-unstable-versus-stable-slipped-capital-femoral-epiphysis-using-the-modified-dunn-procedure
#2
Richard L Davis, Walter P Samora, Freddie Persinger, Kevin E Klingele
BACKGROUND: The modified Dunn procedure (open subcapital realignment via a surgical dislocation approach) has been shown to be a safe and effective way of treating acute, unstable slipped capital femoral epiphysis (SCFE). There is a paucity of literature comparing the modified Dunn procedure in stable SCFE. The purpose of this study was to compare acute, unstable versus chronic, stable SCFE managed with the modified Dunn procedure. METHODS: A retrospective chart review was performed on 44 skeletally immature patients who underwent the modified Dunn procedure for SCFE...
March 21, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28328135/confirmation-of-cagsss-syndrome-as-a-distinct-entity-in-a-danish-patient-with-a-novel-homozygous-mutation-in-iars2
#3
Shahida Moosa, Annette Haagerup, Pernille Axel Gregersen, Karin Kastberg Petersen, Janine Altmüller, Holger Thiele, Peter Nürnberg, Tae-Joon Cho, Ok-Hwa Kim, Gen Nishimura, Bernd Wollnik, Ida Vogel
Since the original description of the IARS2-related cataracts, growth hormone deficiency, sensory neuropathy, sensorineural hearing loss, skeletal dysplasia syndrome (CAGSSS; OMIM 616007) in an extended consanguineous family of French-Canadian descent, no further patients have been reported. IARS2 (OMIM 612801) encodes the mitochondrial isoleucine-tRNA synthetase which belongs to the class-I aminoacyl-tRNA synthetase family, and has been implicated in CAGSSS and a form of Leigh syndrome. Here, we report on a female Danish patient with a novel homozygous IARS2 mutation, p...
April 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28327142/exome-sequencing-identified-rare-variants-in-genes-hspg2-and-atp2b4-in-a-family-segregating-developmental-dysplasia-of-the-hip
#4
Sulman Basit, Alia M Albalawi, Essa Alharby, Khalid I Khoshhal
BACKGROUND: Developmental dysplasia of the hip (DDH) is a common pathological condition of the musculoskeletal system in infants which results in a congenital and developmental malformation of the hip joint. DDH is a spectrum of pathologies affecting the infant hip ranging from asymptomatic subtle radiographic signs through mild instability to frank dislocations with acetabular dysplasia. A Saudi family with three affected individuals with DDH was identified and genetic analysis was performed to detect the possible genetic defect(s) underlying DDH in the affected members of the family...
March 21, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/28326429/ceramic-on-ceramic-bearings-total-hip-arthroplasty-in-young-patients
#5
Tao Wang, Jun-Ying Sun, Xi-Jiang Zhao, Yong Liu, Hai-Bo Yin
BACKGROUND: The results of ceramic-on-ceramic (CoC) total hip arthroplasty (THA) in younger patients were not univocal. This study aims to evaluate the results of CoC bearing THA in patients younger than 50 years. METHODS: A total of 90 younger patients performed CoC THAs during March 2003 and May 2008 were included in this study. Hip function and activity were evaluated with Harris hip score and University of California Los Angeles activity score. We had discussed survival rates, radiological findings of component loosening or osteolysis, and ceramic-related complications in these patients...
December 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28326214/open-and-arthroscopic-with-mini-open-surgical-hip-approaches-for-treatment-of-pigmented-villonodular-synovitis-and-concomitant-hip-pathology
#6
Bridget Ellsworth, Atul F Kamath
Background. Pigmented villonodular synovitis (PVNS) is a rare benign tumor affecting large joints and prompts excision to prevent local destruction of the joint. The purpose of this case report is to describe two differing surgical approaches for management of PVNS of the hip in patients requiring concomitant treatment for additional hip pathology. Methods. This report discusses the presentation, clinical and radiographic findings, and operative management of two contrasting cases of PVNS of the hip. Case 1 describes a 31-year-old female with localized PVNS in addition to a labral tear treated with arthroscopic labral repair followed by tumor excision via a mini-open incision...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28316964/the-fixation-method-according-to-the-fracture-type-of-the-greater-trochanter-in-unstable-intertrochanteric-fractures-undergoing-arthroplasty
#7
Doohoon Sun, Byeong-Seop Park, Gun-Il Jang, Bongjoo Lee
PURPOSE: We conducted a study on patients who underwent hip joint arthroplasty because of unstable femur intertrochanteric fractures with greater trochanter bony fragments. After dividing patients into three groups depending on their fracture patterns, we evaluated the clinical and radiological outcomes of different operation methods applied to each of these groups. MATERIALS AND METHODS: Using Evan's classification, we defined an unstable intertrochanteric fracture as those characterized as stage 4 or 5...
March 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28300706/tapered-stems-one-third-proximally-coated-have-higher-complication-rates-than-cylindrical-two-third-coated-stems-in-patients-with-high-hip-dislocation-undergoing-total-hip-arthroplasty-with-step-cut-shortening-osteotomy
#8
Vahit Emre Ozden, Goksel Dikmen, Burak Beksac, Ismail Remzi Tozun
BACKGROUND: The results of cementless stems in total hip arthroplasty (THA) done because of congenital dislocation with step-cut osteotomy is not well known, particularly the influence of the design and the role of extent of porous coating. Therefore we performed a retrospective study to evaluate the mid to long-term results THA performed with a single type acetabular component and different geometry and fixation type stems with ceramic bearings in the setting of step-cut subtrochanteric osteotomy in high hip dislocated (HHD) patients...
March 11, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28299327/minimum-lateral-bone-coverage-required-for-securing-fixation-of-cementless-acetabular-components-in-hip-dysplasia
#9
Masanori Fujii, Yasuharu Nakashima, Tetsuro Nakamura, Yoshihiro Ito, Toshihiko Hara
Objectives. To determine the minimum lateral bone coverage required for securing stable fixation of the porous-coated acetabular components (cups) in hip dysplasia. Methods. In total, 215 primary total hip arthroplasties in 199 patients were reviewed. The average follow-up period was 49 months (range: 24-77 months). The lateral bone coverage of the cups was assessed by determining the cup center-edge (cup-CE) angle and the bone coverage index (BCI) from anteroposterior pelvic radiographs. Further, cup fixation was determined using the modified DeLee and Charnley classification system...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28294978/discriminative-features-in-three-autosomal-recessive-cutis-laxa-syndromes-cutis-laxa-iia-cutis-laxa-iib-and-geroderma-osteoplastica
#10
REVIEW
Ariana Kariminejad, Fariba Afroozan, Bita Bozorgmehr, Alireza Ghanadan, Susan Akbaroghli, Hamid Reza Khorram Khorshid, Faezeh Mojahedi, Aria Setoodeh, Abigail Loh, Yu Xuan Tan, Nathalie Escande-Beillard, Fransiska Malfait, Bruno Reversade, Thatjana Gardeitchik, Eva Morava
Cutis laxa is a heterogeneous condition characterized by redundant, sagging, inelastic, and wrinkled skin. The inherited forms of this disease are rare and can have autosomal dominant, autosomal recessive, or X-linked inheritance. Three of the autosomal recessive cutis laxa syndromes, namely cutis laxa IIA (ARCL2A), cutis laxa IIB (ARCL2B), and geroderma osteodysplastica (GO), have very similar clinical features, complicating accurate diagnosis. Individuals with these conditions often present with cutis laxa, progeroid features, and hyperextensible joints...
March 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28291181/total-hip-arthroplasty-in-patients-with-cerebral-palsy-a-cohort-study-matched-to-patients-with-osteoarthritis
#11
Matthew T Houdek, Chad D Watts, Cody C Wyles, Robert T Trousdale, Todd A Milbrandt, Michael J Taunton
BACKGROUND: The spasticity and increased muscle tone observed in patients with cerebral palsy can lead to hip degeneration, subluxation, and pain. Currently, there is hesitation to perform total hip arthroplasty in patients with cerebral palsy because of fears of early wear and dislocation. The purpose of this study was to review the outcomes of total hip arthroplasty in patients with cerebral palsy and to compare outcomes with those of matched patients with a diagnosis of osteoarthritis...
March 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28291024/pavlik-harness-treatment-for-pathological-developmental-dysplasia-of-the-hip-meeting-the-standard
#12
Qaisar Choudry, Robin W Paton
In the UK, the Pavlik harness is generally the accepted treatment technique for the treatment of neonatal and infant pathological developmental dysplasia of the hip. In 2013, the success rate of the Pavlik harness became an outcome measure from the British Society of Children's Orthopaedic Surgery for appraisal and revalidation with the GMC for paediatric orthopaedic surgery. The standard set requires an 80% success rate, with less than 20% requiring surgery. This study evaluated the outcomes of Pavlik harness treatment in neonates/infants with 'pathological hips' diagnosed by ultrasound imaging in a district general hospital setting...
March 13, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28289856/erratum-to-imaging-findings-of-anterior-hip-dislocations
#13
Kyle Pfeifer, Michael Leslie, Kirsten Menn, Andrew Haims
No abstract text is available yet for this article.
March 13, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28286603/closed-reduction-with-or-without-adductor-tenotomy-for-developmental-dysplasia-of-the-hip-presenting-at-walking-age
#14
Ahmed Samir Barakat, Abou Bakr Zein, Amr Said Arafa, Mostafa Abdelmaboud Azab, Walid Reda, Mohamed Mahmoud Hegazy, Hassan Magdy Al Barbary, Mohamed Abdelhalim Kaddah
BACKGROUND: Many children with developmental dislocation of the hip especially in underdeveloped countries reach walking age and still remain undiagnosed, which can be detrimental to their growth and development. Because of the lack medical services often encountered in these regions, it would be attractive to find a cheap and effective treatment. Our work evaluated the results of treatment of these children by closed reduction with or without adductor tenotomy in a prospective study...
March 2017: Current Orthopaedic Practice
https://www.readbyqxmd.com/read/28286463/range-of-movement-for-impingement-and-dislocation-avoidance-in-total-hip-replacement-predicted-by-finite-element-model
#15
Laura Ezquerra, María Paz Quilez, María Ángeles Pérez, Jorge Albareda, Belén Seral
Dislocation is a serious complication in total hip replacement (THR). An inadequate range of movement (ROM) can lead to impingement of the prosthesis neck on the acetabular cup; furthermore, the initiation of subluxation and dislocation may occur. The objective of this study was to generate a parametric three-dimensional finite element (FE) model capable of predicting the dislocation stability for various positions of the prosthetic head, neck, and cup under various activities. Three femoral head sizes (28, 32, and 36 mm) were simulated...
2017: Journal of Medical and Biological Engineering
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
#16
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/28276753/dual-mobility-acetabular-cup-for-total-hip-arthroplasty-use-with-caution
#17
Hamed Vahedi, Asim M Makhdom, Javad Parvizi
Dual-mobility cups were introduced to reduce the incidence of dislocation after total hip arthroplasty (THA). The biomechanics of dual-mobility cups allow for greater range of motion, jump distance and better stability when compared to conventional cups in THA. These cups can be very beneficial in THA particularly when the hip instability is a concern such as elderly patients, obese, hip fracture patients, those with neuromuscular diseases, or patients undergoing revision THA for instability. Areas covered: An extensive search is conducted in PubMed and Google scholar to find past five years publications relevant to dual-mobility cups in THA...
March 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28276056/second-family-provides-further-evidence-for-causation-of-steel-syndrome-by-biallelic-mutations-in-col27a1
#18
Shalini Kotabagi, Hitesh Shah, Anju Shukla, Katta M Girisha
Steel syndrome is a rare disorder of the skeleton characterized by facial dysmorphism, short stature, carpal coalition, dislocated radial heads, bilateral hip dislocation and vertical talus. Homozygous variants in COL27A1 was reported in an extending family from Puerto Rico. Here, we report a five years-old girl from a non-consanguineous family with facial dysmorphism, short stature, carpal coalition, dislocation of radial heads, bilateral hip dislocation, scoliosis and vertical talus. Exome sequencing identified two novel compound heterozygous variants c...
March 9, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28269573/pose-measurement-of-anterior-pelvic-plane-based-on-inertial-measurement-unit-in-total-hip-replacement-surgeries
#19
Zhe Cao, Shaojie Su, Hong Chen, Hao Tang, Yixin Zhou, Zhihua Wang
In Total Hip Replacement (THR), inaccurate measurement of Anterior Pelvic Plane (APP), which is usually used as a reference plane, will lead to malposition of the acetabular prosthesis. As a result, the risk of impingement, dislocation and wear will increase and the safe range of motion will be limited. In order to acquire the accurate pose of APP, a measurement system is designed in this paper, which includes two parts: one is used to estimate the initial pose of APP and the other is used to trail dynamic motion of APP...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267910/-surgical-management-of-spinal-deformity-in-a-patient-with-escobar-syndrome-review-of-the-literature
#20
M C Hernández-Hernández, J A Canales-Nájera, J S De La Cruz-Álvarez, M E Tena-Zanabria, J Matus-Jiménez
BACKGROUND: The non-lethal variant of the Escobar or multiple pterygium syndrome is an entity of autosomal recessive inheritance linked to the X chromosome; it is characterized by multiple pterygia (hence its name) located mainly in the neck (95%) and armpits (55%), as well as other orthopedic malformations such as a vertical talus, congenital hip dislocation, and congenital scoliosis. OBJECTIVE: To present an optional surgical technique for the management of severe spinal deformities...
July 2016: Acta Ortopédica Mexicana
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