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https://www.readbyqxmd.com/read/28445371/preventing-early-stage-graft-bone-resorption-by-simultaneous-innervation-innervated-iliac-bone-flap-for-mandibular-reconstruction
#1
Lei Wang, Jian-Hua Wei, Xi Yang, Zi-Hui Yang, Mo-Yi Sun, Xiao-Bing Cheng, Li-Qun Xu, De-Lin Lei, Chen-Ping Zhang
BACKGROUND: Postoperative resorption of vascularized bone grafts jeopardizes the success of dental implant(s) and functional rehabilitation of the jaw. Recent evidence supports the crucial role of innervation in bone regeneration and turnover. METHODS: This study reports a new technique for simultaneous innervation of vascularized iliac flaps in mandibular reconstruction, through neurorrhaphy between ilioinguinal nerves, which innervate iliac bone, and inferior alveolar nerves or great auricular nerves...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445366/biomechanical-integrity-in-craniofacial-surgery-calvarial-reconstruction-in-favorable-and-infected-defects-with-bone-morphogenetic-protein-2
#2
Zoe M MacIsaac, Sarah E Henderson, Sameer Shakir, Sanjay Naran, Darren M Smith, Liliana Camison, James J Cray, Alejandro J Almarza, Gregory M Cooper, Joseph E Losee
BACKGROUND: The limitations of autologous and alloplastic reconstruction for craniofacial bone defects have created a clinical need for viable tissue-engineering strategies. Recombinant human bone morphogenetic protein-2 (rhBMP-2) has shown promise in this setting. The aim of this study was to determine the long-term biomechanical properties of rhBMP-2-mediated calvarial reconstruction. METHODS: Twelve-week-old New Zealand White rabbits underwent subtotal calvarectomy...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445234/safe-new-approach-to-the-lingual-flap-management-in-mandibular-augmentation-procedures-the-digitoclastic-technique
#3
Roberto Pistilli, Vittorio Checchi, Gilberto Sammartino, Massimo Simion, Pietro Felice
PURPOSE: This article describes the digitoclastic technique, an innovative procedure for coronal displacement of the lingual flap. The new technique has the potential to obtain primary flap closure without surgical risks to the anatomical structures on the lingual side of the mandible. MATERIALS AND METHODS: Reconstruction of an atrophic mandible with guided tissue regeneration (guided bone regeneration) and implant placement is described, using the digitoclastic technique to displace the lingual flap coronally...
April 25, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28444432/childhood-growth-predicts-higher-bone-mass-and-greater-bone-area-in-early-old-age-findings-among-a-subgroup-of-women-from-the-helsinki-birth-cohort-study
#4
T M Mikkola, M B von Bonsdorff, C Osmond, M K Salonen, E Kajantie, C Cooper, M J Välimäki, J G Eriksson
We examined the associations between childhood growth and bone properties among women at early old age. Early growth in height predicted greater bone area and higher bone mineral mass. However, information on growth did not improve prediction of bone properties beyond that predicted by body size at early old age. INTRODUCTION: We examined the associations between body size at birth and childhood growth with bone area, bone mineral content (BMC), and areal bone mineral density (aBMD) in early old age...
April 25, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28444096/off-label-use-of-rhbmp-2-as-bone-regeneration-strategies-in-mandibular-ameloblastoma-unicystic
#5
Henrique Celestino Lima E Silva, Adonai Peixoto Cheim, Roberto Moreno, Sérgio Luis de Miranda
Jawbone reconstruction after tumor resection is one of the most challenging clinical tasks for maxillofacial surgeons. Osteogenic, osteoinductive, osteoconductive and non-antigenic properties of autogenous bone place this bone as the gold standard for solving problems of bone availability. However, the need for a second surgical site to harvest the bone graft increases significantly both the cost and the morbidity associated with the reconstructive procedures. Bone grafting gained an important tool with the discovery of bone morphogenetic proteins in 1960...
January 2017: Einstein
https://www.readbyqxmd.com/read/28443175/the-versatile-approach-a-novel-single-incision-combined-with-anterior-and-posterior-approaches-for-decompression-and-instrumented-fusion-to-treat-tuberculosis-of-the-thoracic-spine
#6
Sudhir Kumar Srivastava, Rishi Anil Aggarwal, Sunil Krishna Bhosale, Kunal Roy, Pradip Sharad Nemade
STUDY DESIGN: Retrospective case series. PURPOSE: To describe a novel single incision that combines anterior and posterior approaches for decompression and instrumented fusion to treat tuberculosis of the thoracic spine and study the neurological and radiological outcomes. OVERVIEW OF LITERATURE: Tuberculosis of the spine remains a major health issue in many developing countries. The options for treating tuberculosis of the thoracic spine include the anterior, posterior, and combined approaches, each with its advantages and disadvantages...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28442207/tibio-talo-calcaneal-fusion-after-limb-salvage-procedures-a-retrospective-study
#7
Lukas Zak, Gerald E Wozasek
BACKGROUND: The treatment of limb threatening trauma on the distal tibia or hindfoot often results in posttraumatic osteoarthritis requiring tibiotalocalcaneal (TTC) arthrodesis. The purpose of this study was to present a case series of patients undergoing various techniques of joint fusion after bone reconstruction and deformity correction as a salvage procedure. The study should help trauma surgeons making decisions in limb salvage and deformity correction in complex lower leg and foot injuries by presenting options and treatment strategies...
April 15, 2017: Injury
https://www.readbyqxmd.com/read/28441305/step-by-step-technique-for-segmental-reconstruction-of-reverse-hill-sachs-lesions-using-homologous-osteochondral-allograft
#8
Hassanin Alkaduhimi, Michel P J van den Bekerom, Derek F P van Deurzen
Posterior shoulder dislocations are accompanied by high forces and can result in an anteromedial humeral head impression fracture called a reverse Hill-Sachs lesion. This reverse Hill-Sachs lesion can result in serious complications including posttraumatic osteoarthritis, posterior dislocations, osteonecrosis, persistent joint stiffness, and loss of shoulder function. Treatment is challenging and depends on the amount of bone loss. Several techniques have been reported to describe the surgical treatment of lesions larger than 20%...
April 24, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28441303/surgical-techniques-for-closure-of-a-scalp-defect-after-resection-of-skin-malignancy
#9
Maciej Rysz, Dariusz Grzelecki, Maciej Mazurek, Stanisław Starościak, Romuald Krajewski
BACKGROUND: Surgery for scalp malignancies is aimed at the complete resection and a good aesthetic outcome. The goal was to develop an algorithm for scalp reconstruction based on the authors' surgical experience. METHODS: This is a retrospective analysis of 123 procedures of scalp malignancies in 105 patients. Twenty eight procedures were for resection of squamous cell carcinoma, 54 for basal cell carcinoma, and 41 for suspected melanomas. RESULTS: Primary closure (27 procedures), local flap (LF; 19), split-thickness skin graft (SG; 64), rotated LF and SG (9), and free vascularized flaps (4) were used...
May 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28441229/preliminary-model-for-the-design-of-a-custom-middle-ear-prosthesis
#10
Brandon Kamrava, Jonathan A Gerstenhaber, Mamta Amin, Yah-El Har-El, Pamela C Roehm
HYPOTHESIS: Custom prostheses could be used to recreate the ossicular chain and improve hearing. BACKGROUND: Ossicular discontinuity or fixation occurs in 55% of cases of conductive hearing loss, with most cases involving the incus. Reconstruction has been achieved by a variety of methods; however, there has been little improvement in hearing outcomes in decades. METHODS: Precise measurements of anatomic dimensions, weight, and center of gravity were taken from 19 cadaveric incudes...
April 24, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28440536/selected-bone-morphogenetic-proteins-the-possibility-of-their-use-in-the-diagnostics-and-therapy-of-severe-asthma
#11
Marcelina Koćwin, Mateusz Jonakowski, Marcelina Przemęcka, Michał Panek, Piotr Kuna
Asthma is a chronic heterogeneous illness of the lower airway with an inflammatory basis, developing from hyperresponsiveness and bronchial obstruction. One of the more unfavourable processes occurring in the airway are the long-term changes of the respiratory tract known as remodelling, resulting in complete irreversible obstruction. Bone morphogenetic protein (BMP) is a member of the Transforming Growth Factor beta (TGF-b) superfamily, which regulates processes in embryonic and post-embryonic development...
2017: Advances in Respiratory Medicine
https://www.readbyqxmd.com/read/28439635/high-incidence-of-partially-anatomic-tunnel-placement-in-primary-single-bundle-acl-reconstruction
#12
Andrea Achtnich, Francesco Ranuccio, Lukas Willinger, Jonas Pogorzelski, Andreas B Imhoff, Sepp Braun, Elmar Herbst
PURPOSE: The purpose of this study was to evaluate tunnel position and width in failed primary single-bundle (SB) anterior cruciate ligament (ACL) reconstructions. It was hypothesized that both femoral and tibial bone tunnels are frequently malplaced in terms of a partially anatomic position in the setting of failed SB ACL reconstruction. METHODS: Patients with recurrent instability following isolated SB ACL reconstruction using hamstring tendon autografts, undergoing revision ACL surgery, were retrospectively included...
April 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28439572/long-term-clinical-and-radiologic-documentation-of-a-maxillary-odontogenic-myxoma-from-early-clinical-signs-to-implant-supported-prosthodontic-rehabilitation-case-report-and-review-of-the-literature
#13
Sebastian Berger, Paul Hakl, Marius Meier, Walter Sutter, Andrej M Kielbassa, Dritan Turhani
Odontogenic myxoma (OM) is a non-metastasizing neoplasm of mesenchymal origin, arising in the tooth-bearing areas of the jaws. When regarding the whole spectrum of differential diagnoses for osteolytic jaw lesions, OM constitutes a benign tumor rarely located in the maxilla. Radiographically, displacement of teeth and frequent involvement of the sinus will be found with advanced maxillary OM. The tumor can be removed by means of several techniques, ranging from conservative measures to extended surgical procedures that differ according to type of bone resection and reconstruction of the defect...
April 24, 2017: Quintessence International
https://www.readbyqxmd.com/read/28437496/novel-solution-for-massive-glenoid-defects-in-shoulder-arthroplasty-a-patient-specific-glenoid-vault-reconstruction-system
#14
David M Dines, Lawrence Gulotta, Edward V Craig, Joshua S Dines
Complex glenoid deformities present the most difficult challenges in shoulder arthroplasty. These deformities may be caused by severe degenerative or congenital deformity, posttraumatic anatomy, tumor, or, in most cases, bone loss after glenoid failure in anatomical total shoulder arthroplasty. Methods of treating severe bone loss have included inlay and onlay bone-graft options with augmented fixation and, in severe cases, salvage hemiarthroplasty with limited goal expectations. Unfortunately, none of these methods has provided consistently satisfactory reproducible results...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28436033/assessing-impact-direction-in-3-point-bending-of-human-femora-incomplete-butterfly-fractures-and-fracture-surfaces
#15
Mariyam I Isa, Todd W Fenton, Trevor Deland, Roger C Haut
Current literature associates bending failure with butterfly fracture, in which fracture initiates transversely at the tensile surface of a bent bone and branches as it propagates toward the impact surface. The orientation of the resulting wedge fragment is often considered diagnostic of impact direction. However, experimental studies indicate bending does not always produce complete butterfly fractures or produces wedge fragments variably in tension or compression, precluding their use in interpreting directionality...
April 23, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28435761/dual-energy-ct-in-head-and-neck-imaging
#16
REVIEW
Elise D Roele, Veronique C M L Timmer, Lauretta A A Vaassen, Anna M J L van Kroonenburgh, A A Postma
PURPOSE OF REVIEW: To explain the technique of Dual-energy CT (DECT) and highlight its applications and advantages in head and neck radiology. RECENT FINDINGS: Using DECT, additional datasets can be created next to conventional images. In head and neck radiology, three material decomposition algorithms can be used for improved lesion detection and delineation of the tumor. Iodine concentration measurements can aid in differentiating malignant from nonmalignant lymph nodes and benign posttreatment changes from tumor recurrence...
2017: Current Radiology Reports
https://www.readbyqxmd.com/read/28435571/outcome-of-skeletal-reconstructive-surgery-for-metastatic-bone-tumours-in-the-femur
#17
N H Mohamed-Haflah, Y Kassim, I Zuchri, W Zulmi
INTRODUCTION: The role of surgery in skeletal metastasis is to reduce morbidity and improve the quality of life in terminally ill patients. We report our experience with patients who underwent skeletal reconstructive surgery for metastatic bone tumour of the femur. MATERIALS AND METHODS: Twenty nine operations for skeletal metastasis of the femur performed in our centre between 2009 and 2015 were included in this study. We evaluated the choice of implant, complications, survival rate and functional outcome...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28435449/zero-order-controlled-release-of-bmp2-derived-peptide-p24-from-the-chitosan-scaffold-by-chemical-grafting-modification-technique-for-promotion-of-osteogenesis-in-vitro-and-enhancement-of-bone-repair-in-vivo
#18
Yan Chen, Xujie Liu, Rui Liu, Yong Gong, Mingbo Wang, Qianli Huang, Qingling Feng, Bo Yu
Combination of tissue-engineered bone scaffolds with cell-adhesive, osteoconductive, or osteoinductive biomolecules is a critical strategy to improve their properties that significantly influence cellular behaviors, such as adhesion, proliferation, and differentiation, which is beneficial for critical-sized bone defects repairing. However, the traditional surface modification techniques, such as physical adsorption, coating, and plasma treatment, et al, have great limitations for immobilization of bioactive molecules due to undesirable controlled delivery performance or overly complex multistep procedures...
2017: Theranostics
https://www.readbyqxmd.com/read/28434964/reconstruction-of-cranial-vault-defect-with-polyetheretherketone-peek-implants
#19
Pierre Brandicourt, Franck Delanoé, Franck-Emmanuel Roux, Florian Jalbert, David Brauge, Frédéric Lauwers
OBJECT: Reconstruction of a cranial vault defect is a frequent challenge in neurosurgery. Polyetheretherketone (PEEK) is used in many types of prostheses and has been employed for 10 years in our institution (University Hospital of Toulouse - France). The objectives of this study are to describe the benefits and drawbacks of reconstructing the cranial vault defect with a PEEK prosthesis. METHODS: Clinical data of the 37 patients who received a reconstruction with a custom-made PEEK prosthesis from 2007 to 2015 were retrospectively analysed...
April 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28434829/use-of-cutting-guides-during-craniosynostosis-sequelae-surgery-a-comparative-study-between-computer-assisted-planning-and-post-operative-results
#20
Chrystelle Queiros, Aline Joly, Arnaud Paré, Antoine Listrat, Nadine Travers, Dominique Goga, Boris Laure
BACKGROUND: The authors compared results of craniofacial reconstruction surgery using cutting guides with planned reconstruction on patients presenting craniosynostosis surgery sequelae. METHODS: This is a retrospective study performed on seven patients who had undergone craniofacial reconstructive surgery in University Hospital Center of Tours (France) in 2015. Patients had long-term sequelae of trigonocephaly and anterior plagiocephaly surgery. 3D computer model was constructed, based on CT scans and used for surgical planning...
March 28, 2017: Journal of Cranio-maxillo-facial Surgery
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