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Coxa Vara

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https://www.readbyqxmd.com/read/29907912/temporary-epiphysiodesis-using-the-flextack%C3%A2-implant-tension-band-featuring-a-modified-explantation-technique
#1
REVIEW
S Koob, M Kehrer, M Hettchen, T Jansen, J Schmolders, R Placzek
OBJECTIVE: Presenting the implantation of the PediatrOS™ FlexTack™ (Merete, Berlin, Germany) for growth guidance and a modified explantation procedure to facilitate explantation and prevent bone and soft tissue damage. INDICATIONS: Implantation: Genua vara and valga, coxa vara, varus and valgus deviation of the ankle joint, the elbow joint and the wrist Modified Explantation: Removal of the implant after successful limb correction or dislocation of the implant...
June 15, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29781820/management-of-pediatric-femoral-neck-fracture
#2
Joseph T Patterson, Jennifer Tangtiphaiboontana, Nirav K Pandya
In the pediatric population, femoral neck fracture is a relatively uncommon injury with a high complication rate, despite appropriate diagnosis and management. The anatomy and blood supply of the proximal femur in the skeletally immature patient differs from that in the adult patient. Generally, these fractures result from high-energy trauma and are categorized using the Delbet classification system. This system both guides management and aids the clinician in determining the risk of osteonecrosis after these fractures...
May 16, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29739249/incidence-risk-factors-and-prognosis-of-transient-pseudosubluxation-after-total-hip-arthroplasty
#3
Yong-Han Cha, Woo-Lam Jo, Young-Kyun Lee, Yong-Chan Ha, Javad Parvizi, Kyung-Hoi Koo
INTRODUCTION: Pseudosubluxation is a transient separation of the prosthetic femoral head from the acetabular liner during the anaesthetic period after total hip arthroplasty (THA). However, little is known about the frequency, pathomechanism, risk factors or natural history. METHODS: To determine the incidence, direction of the displacement, risk factors and subsequent instability of pseudosubluxation, we evaluated 1099 primary cementless THAs (943 patients), which were performed during 8 years at one institution...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29698303/closed-reduction-osteotomy-and-fibular-graft-are-effective-in-treating-pediatric-femoral-neck-pseudarthrosis-after-infection
#4
Rajesh Kumar Kanojia, Sumit Gupta, Ajay Kumar, Bachha Kanakeya Reddy
BACKGROUND: When treatment of acute septic arthritis of the hip is delayed, severe sequelae can occur. This may take the form of coxa breva, vara, or valga. Pseudoarthrosis of the femoral neck is a rare complication with only a few studies to guide treatment. QUESTION/PURPOSES: In a small series of patients with pseudarthrosis of the femoral neck after acute septic arthritis, we wanted to determine (1) whether femoral neck union can be achieved using a variety of surgical approaches; (2) whether these patients satisfied criteria outlined by Hunka and Choi, defined as a stable hip, a flexion arc ≥ 70° and no fixed adduction or abduction contractures, fixed flexion deformity not more than 20°, pain relief, and restoration of activities of daily living after surgery; and (3) any treatment-related complications if observed...
July 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29681707/pediatric-proximal-femur-fractures
#5
REVIEW
Brian L Dial, Robert K Lark
Pediatric proximal femur fractures are rare injuries resulting from high-energy trauma. The Delbet classification is used when describing these injuries, and associates fracture type to the development of avascular necrosis. Historically, casting was utilized in the treatment of these injuries, but high complication rates following this approach have changed the treatment modality to early and anatomic fixation. Complications associated with these injuries including avascular necrosis, non-union, coxa-vara, and premature physeal fusion...
June 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29397575/genotype-phenotype-investigation-of-35-patients-from-11-unrelated-families-with-camptodactyly-arthropathy-coxa-vara-pericarditis-cacp-syndrome
#6
Saliha Yilmaz, Dilek Uludağ Alkaya, Özgür Kasapçopur, Kenan Barut, Ekin S Akdemir, Cemre Celen, Mark W Youngblood, Katsuhito Yasuno, Kaya Bilguvar, Murat Günel, Beyhan Tüysüz
BACKGROUND: The camptodactyly-arthropathy-coxa vara-pericarditis syndrome (CACP) is a rare autosomal recessive condition characterized by camptodactyly, noninflammatory arthropathy, coxa vara, and pericarditis. CACP is caused by mutations in the proteoglycan 4 (PRG4) gene, which encodes a lubricating glycoprotein present in the synovial fluid and at the surface of articular cartilage. METHODS: In the present study, we compared the clinical and molecular findings of CACP syndrome in 35 patients from 11 unrelated families...
March 2018: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/29349966/-a-medium-term-therapeutic-effects-of-anatomic-locking-plate-for-femoral-intertrochanteric-with-lateral-femoral-wall-fractures
#7
Jin-Wei Xu, Lei Han, Yun-Gen Hu, Wei-Li Fang, Bo Ji
OBJECTIVE: To retrospectively study medium term follow-up outcomes of the femoral intertrochanteric with lateral femoral wall fractures using anatomic locking plate fixation. METHODS: From June 2010 to January 2013, 18 cases of the unstable femoral intertrochanteric with lateral femoral wall fractures were treated with the anatomic locking plate, included 8 males and 10 females with an average age of 75.5 years ranging from 19 to 83 years old. There were 8 cases of traffic accident injuries, 6 cases of falls injuries, and 4 cases of falling from high place...
March 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29250335/technical-particularities-of-joint-preserving-hip-surgery-in-osteopetrosis
#8
REVIEW
Reinhold Ganz, Guido Grappiolo, Jeffrey W Mast, Joel Matta, Luigino Turchetto
Proximal femoral fracture and coxarthrosis are the most common orthopaedic problems of osteopetrosis. Fracture fixation is difficult and one-third fail, with total hip replacement as the final solution. There is little reported experience about how to deal with this particular type of bone and what has been published to date is surprisingly non-specific. Corrective osteotomies are mainly undertaken in children for non-union of a fractured femoral neck and/or for coxa vara. However, any information about technical problems and solutions is scarce and barely instructive...
December 2017: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/29156476/camptodactyly-arthropathy-coxa-vara-pericarditis-syndrome-with-shoulder-joint-involvement-a-case-report-with-literature-review
#9
Omar M Albtoush, Abtehag A Taib, Karam A Manzalawi, Waleed S Mahafza
No abstract text is available yet for this article.
November 20, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29100092/mutations-in-fibronectin-cause-a-subtype-of-spondylometaphyseal-dysplasia-with-corner-fractures
#10
Chae Syng Lee, He Fu, Nissan Baratang, Justine Rousseau, Heena Kumra, V Reid Sutton, Marcello Niceta, Andrea Ciolfi, Guilherme Yamamoto, Débora Bertola, Carlo L Marcelis, Dorien Lugtenberg, Andrea Bartuli, Choel Kim, Julie Hoover-Fong, Nara Sobreira, Richard Pauli, Carlos Bacino, Deborah Krakow, Jillian Parboosingh, Patrick Yap, Ariana Kariminejad, Marie T McDonald, Mariana I Aracena, Ekkehart Lausch, Sheila Unger, Andrea Superti-Furga, James T Lu, Dan H Cohn, Marco Tartaglia, Brendan H Lee, Dieter P Reinhardt, Philippe M Campeau
Fibronectin is a master organizer of extracellular matrices (ECMs) and promotes the assembly of collagens, fibrillin-1, and other proteins. It is also known to play roles in skeletal tissues through its secretion by osteoblasts, chondrocytes, and mesenchymal cells. Spondylometaphyseal dysplasias (SMDs) comprise a diverse group of skeletal dysplasias and often manifest as short stature, growth-plate irregularities, and vertebral anomalies, such as scoliosis. By comparing the exomes of individuals with SMD with the radiographic appearance of "corner fractures" at metaphyses, we identified three individuals with fibronectin (FN1) variants affecting highly conserved residues...
November 2, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29062210/evaluation-of-outcome-of-proximal-femur-locking-compression-plate-pflcp-in-unstable-proximal-femur-fractures
#11
Malkesh D Shah, Chirag S Kapoor, Rishit J Soni, Jagdish J Patwa, Paresh P Golwala
INTRODUCTION: Pertrochanteric fractures are most frequent factures of the proximal femur, accounts for nearly 50% of all proximal femur fractures and are most devastating and also a major cause of disability in elderly. The aim and objective of this study was to evaluate the role of proximal femoral locking compression plate in unstable proximal femur fractures. MATERIAL AND METHOD: A total of 20 cases were included in our study (M:F - 16:4), who suffered proximal femur fracture due to various modalities and all of them were operated using proximal femoral locking compression plate...
October 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29021887/a-modified-technique-of-fixation-for-proximal-femoral-valgus-osteotomy-in-abnormal-bone-a-report-of-two-cases
#12
S Logheswaren, A R Sulaiman, I Munajat
The ideal size of intramedullary device to fix corrective osteotomy of proximal femur in abnormal bone in children and small patients may not be easily available. We report the successful use of Rush rod in combination with multiple Kirschner wires to fix the corrective osteotomy of coxa vara and shepherd crook deformity in two patients with osteogenesis imperfecta and fibrous dysplasia. The union was achieved on time, neck shaft angle and rotation were maintained.
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28963665/locking-plate-and-fibular-strut-graft-augmentation-in-the-reconstruction-of-unicameral-bone-cyst-of-proximal-femur-in-the-paediatric-population
#13
Khodamorad Jamshidi, Masoud Mirkazemi, Azra Izanloo, Alireza Mirzaei
PURPOSE: Several therapeutic strategies have been used for managing unicameral bone cyst (UBC) of the proximal femur. However, there is insufficient evidence to support one treatment over another, and the optimal treatment is controversial. This study aims at describing our experience with surgical reconstruction of paediatric UBCs of the proximal femur using a proximal locking plate and fibular strut allograft. METHODS: In total, 14 consecutive paediatric patients with Dormans types IB (four cases) and IIB (10 cases) UBC were assessed...
January 2018: International Orthopaedics
https://www.readbyqxmd.com/read/28802420/dhs-osteosynthesis-with-internal-bone-grafting-in-unstable-delayed-presented-intracapsular-neck-femur-fractures
#14
Wasudeo M Gadegone, R M Chandak, Vijayanand R Lokhande
OBJECTIVES: The aim of this study was to assess fracture union and complications following use of dynamic hip screw (DHS) with internal bone grafting in treatment of unstable delayed presented intracapsular neck femur fractures in patients younger than 65 years of age. MATERIAL AND METHODS: Thirty two patients with displaced intracapsular neck femur fractures(Garden III and IV, Pauwels III, with comminution) with delayed presentation (15-60 days) in the 45-65 year age group (mean 54...
August 2017: Injury
https://www.readbyqxmd.com/read/28702703/transfixing-kirshner-wires-for-fixation-of-intertrochanteric-valgus-osteotomies-in-management-of-pediatric-coxa-vara
#15
Ahmed Shawkat Rizk
BACKGROUND: Coxa vara is a radiological term describing a decrease in the neck-shaft angle to 120° or less. Coxa vara is associated with pathomechanical changes that can manifest clinically. If left untreated, coxa vara can affect the normal development of the pediatric hip. Valgus osteotomy is the standard surgical treatment for coxa vara, but there is no consensus regarding the optimal osteotomy technique and fixation method. The work reported here aimed to highlight transfixing wires as a fixation method for valgus osteotomy applied as treatment for various types of pediatric coxa vara...
December 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/28604608/friction-induced-mitochondrial-dysregulation-contributes-to-joint-deterioration-in-prg4-knockout-mice
#16
Kimberly A Waller, Ling X Zhang, Gregory D Jay
Deficiency of PRG4 (lubricin), the boundary lubricant in mammalian joints, contributes to increased joint friction accompanied by superficial and upper intermediate zone chondrocyte caspase-3 activation, as shown in lubricin - null ( Prg 4-/- ) mice. Caspase-3 activity appears to be reversible upon the restitution of Prg4 either endogenously in vivo, in a gene trap mouse, or as an applied lubricant in vitro. In this study we show that intra-articular injection of human PRG4 in vivo in Prg 4-/- mice prevented caspase-3 activation in superficial zone chondrocytes and was associated with a modest decrease in whole joint friction measured ex vivo using a joint pendulum method...
June 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28439311/treatment-of-shepherd-s-crook-deformity-in-patients-with-polyostotic-fibrous-dysplasia-using-a-new-type-of-custom-made-retrograde-intramedullary-nail-a-technical-note
#17
F Hefti, L Donnan, A H Krieg
AIMS: The severe form of coxa vara, the 'shepherd's crook deformity', is always a consequence of a locally extensive form of polyostotic fibrous dysplasia (or McCune-Albright syndrome). Treatment of this deformity is a challenge. The soft bone does not tolerate any implant that depends on the stability of the cortical bone (like plates or external fixators). Intramedullary nails are the most appropriate implants for stabilisation, but if they are inserted from the greater trochanter, they cannot correct the varus deformity enough...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28434011/management-of-coxa-vara-septica-and-pseudoarthrosis-of-the-femoral-neck-a-case-report
#18
Hasime Qorraj Bytyqi, Cen Bytyqi
BACKGROUND Coxa vara and pseudoarthrosis of the femoral neck after septic hip arthritis is a very rare disease. The aim of this study was to present a case with pseudoarthrosis of the femoral neck, with coxa vara after neonatal septic arthritis of the right hip, and treatment of the pseudarthrosis with proximal femoral valgus osteotomy. CASE REPORT A 12-month-old female, who had suffered neonatal septic arthritis with a five-day history of fever and painful right hip now demonstrated painless limping to the right hip, pelvic obliquity, Trendelenburg-Duchenne gait, limitation of hip abduction, lower-extremity length discrepancy with 3...
April 23, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28323974/phenotypic-spectrum-in-osteogenesis-imperfecta-due-to-mutations-in-tmem38b-unraveling-a-complex-cellular-defect
#19
Emma A Webb, Meena Balasubramanian, Nadja Fratzl-Zelman, Wayne A Cabral, Hannah Titheradge, Atif Alsaedi, Vrinda Saraff, Julie Vogt, Trevor Cole, Susan Stewart, Nicola J Crabtree, Brandi M Sargent, Sonja Gamsjaeger, Eleftherios P Paschalis, Paul Roschger, Klaus Klaushofer, Nick J Shaw, Joan C Marini, Wolfgang Högler
Context: Recessive mutations in TMEM38B cause type XIV osteogenesis imperfecta (OI) by dysregulating intracellular calcium flux. Objectives: Clinical and bone material phenotype description and osteoblast differentiation studies. Design and Setting: Natural history study in pediatric research centers. Patients: Eight patients with type XIV OI. Main Outcome Measures: Clinical examinations included bone mineral density, radiographs, echocardiography, and muscle biopsy...
June 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28291008/the-efficacy-of-yttrium-90-radiosynovectomy-in-patients-with-camptodactyly-arthropathy-coxa-vara-pericarditis-syndrome
#20
Sulaiman Mohammed Al-Mayouf, Nora Almutairi, Khalid Alismail
OBJECTIVE: Camptodactyly-arthropathy-coxa-vara-pericarditis (CACP) syndrome is an autosomal recessive disorder caused by mutations in PRG4 gene that encodes for proteoglycan 4, the main lubricant for joints and tendon surfaces. It is a non-inflammatory arthropathy, characterized by joint effusions and synovial hypertrophy. So far, there is no effective treatment for this disorder. To evaluate the effectiveness of yttrium-90 radiosynovectomy in arthropathy of patients with CACP syndrome...
February 5, 2017: Molecular Imaging and Radionuclide Therapy
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