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https://www.readbyqxmd.com/read/28728303/-enhancing-soft-tissue-reattachment-with-artificial-mesh-in-joint-endoprosthetic-reconstruction-for-bone-tumors
#1
J S Lin, R Chen, W Yan, D D Chen
Objective: To investigate the operative method and clinical application of the BARD(®) Mesh in enhancing joint stability and function of endoprosthetic reconstruction for bone tumors. Methods: From Jan 2013 to Jun 2015, the clinical data of 51 patients aged (44.75±23.18) years underwent wide resection of tumor and endoprosthetic reconstruction using the BARD(®) Mesh were collected. Among them, 27 were male and 24 were female. The surgical treatments received by these patients included 5 shoulder arthroplasties, 12 elbow replacements, 12 hip replacements and 32 knee replacements (including 24 femoral tumors and 8 tibial tumors)...
July 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28728078/femoral-head-necrosis-a-finite-element-analysis-of-common-and-novel-surgical-techniques
#2
Myriam Cilla, Sara Checa, Bernd Preininger, Tobias Winkler, Carsten Perka, Georg N Duda, Matthias Pumberger
BACKGROUND: Femoral head necrosis is a common cause of secondary osteoarthritis. At the early stages, treatment strategies are normally based on core decompression techniques, where the number, location and diameter of the drilling holes varies depending on the selected approach. The purpose of this study was to investigate the risk of femoral head, neck and subtrochanteric fracture following six different core decompression techniques. MATERIALS: Five common and a newly proposed techniques were analyzed in respect to their biomechanical consequences using finite element analysis...
July 6, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28727652/surgical-emphysema-following-canalplasty-for-aural-exostoses
#3
Michael C Baxter, Matthew Keller, Anil Shah, Sean Wise
OBJECTIVE: To describe the presentation and management of surgical emphysema involving the temporomandibular joint and deep neck following exostoses removal. PATIENT: A 60-year-old male surfer presented with hearing loss and recurrent infections in the right ear. An examination revealed obstructing bony exostoses in the right external auditory canal. He underwent right canalplasty using a postauricular approach. At 5 weeks after surgery, he presented with right otalgia, swelling of the right face and neck, and complaints of a squeaking noise in the right ear with mandibular excursions...
July 19, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28706825/treatment-of-irreducible-traumatic-anterior-shoulder-dislocation-caused-by-subscapularis-tendon-interposition
#4
Maysara Abdelhalim Bayoumy, Hatem G Said, Ayman Farouk Abdelkawi, Tarek N Fetih
Irreducible shoulder dislocation is an uncommon event. When it does occur, blocks to reduction can include bone, labrum, rotator cuff musculature, or tendon. Concomitant rotator cuff tear at the time of initial dislocation is not an exclusive complication of anterior shoulder dislocation in the older population. Indeed, rotator cuff tear should not be excluded based solely on the patient's age. Rotator cuff interposition is not an uncommon complication after anterior dislocation of the shoulder. It should be suspected when there is incongruency of the joint and persistent subluxation on postreduction radiographs...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28706811/surgical-technique-for-arthroscopy-assisted-anatomical-reconstruction-of-acromioclavicular-and-coracoclavicular-ligaments-using-autologous-hamstring-graft-in-chronic-acromioclavicular-joint-dislocations
#5
Bancha Chernchujit, Prashant Parate
Injuries to the acromioclavicular (AC) joint are becoming common with contact sports and bike accidents. It is well known that in AC dislocations, the first structure to fail is the AC capsule followed by the trapezoid and conoid ligaments. The function of these ligaments must be restored to restore the anatomy and physiology of the AC joint to get the best results. Until now, no technique has emerged as the gold standard for restoration of the AC joint anatomy and function. In our technique, the stress is on recreating the anatomy to make it more individualized based on individual variations...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28705427/invasive-disease-by-streptococcus-pyogenes-patients-hospitalized-for-6-years
#6
Vanessa Arias-Constantí, Victoria Trenchs-Sainz de la Maza, Nuria Elvira Sanz-Marcos, Carmina Guitart-Pardellans, Amadeu Gené-Giralt, Carles Luaces-Cubells
INTRODUCTION AND OBJECTIVE: The last years an increase of severe cases of invasive disease (ID) due to Streptococcus pyogenes or streptococcus b-hemolytic group A (SGA) had been detected. The aim of this study was to analyze the epidemiology and the clinical features of ID due to SGA in a tertiary Pediatric Hospital. MATERIAL AND METHODS: Retrospective study in a Pediatric hospital, of all in-patients with final diagnosis of ID due to SGA during 6 years (2009-2014)...
July 10, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28697082/primary-posterior-blade-plate-tibiotalar-arthrodesis-a-salvage-procedure-for-complex-nonreconstructable-pilon-fractures
#7
Ermias Abebe, Dana J Farrell, Boris Zelle, Gary Gruen
A subset of C2/C3 pilon fractures, open pilon injuries, metaphyseal bone comminution, and those involving substantial soft tissue or vascular injury may be nonreconstructable. Such injuries are at risk of progress to nonunion and failing open reduction internal fixation (ORIF). The risk of infection, malunion, and nonunion is relatively high with such injury patterns. In such cases, tibiotalar arthrodesis is performed after ORIF fails as a salvage procedure. Overall, the literature agrees that all pilon fractures will develop posttraumatic osteoarthritis, and these patients are ultimately treated with an arthrodesis or in narrow population with total ankle arthroplasty...
August 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28690520/extraskeletal-chondroma-of-the-index-finger-a-case-report
#8
Masato Saito, Kazumasa Nishimoto, Robert Nakayama, Kazutaka Kikuta, Masaya Nakamura, Morio Matsumoto, Hideo Morioka
Extraskeletal chondroma is defined as a rare, benign, cartilaginous tumor arising from soft tissues such as tendons, tendon sheath synovia, and joint capsules with no continuity to the periosteum or bone cortex. In histopathologic findings, the tumor exhibits many lobular structures and some parts similar to hyaline cartilage. Therefore, it is sometimes difficult to differentiate this tumor from low-grade chondrosarcoma because of their similar histopathologic findings. In order to prevent recurrence, it is necessary to remove the tumor as a whole, including the capsule, so as not to leave any remnants of the tumor...
May 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28680670/finite-element-modelling-of-mechanobiological-factors-influencing-sesamoid-tissue-morphology-in-the-patellar-tendon-of-an-ostrich
#9
Kyle P Chadwick, Sandra J Shefelbine, Andrew A Pitsillides, John R Hutchinson
The appearance and shape of sesamoid bones within a tendon or ligament wrapping around a joint are understood to be influenced by both genetic and epigenetic factors. Ostriches (Struthio camelus) possess two sesamoid patellae (kneecaps), one of which (the distal patella) is unique to their lineage, making them a good model for investigating sesamoid tissue development and evolution. Here we used finite-element modelling to test the hypothesis that specific mechanical cues in the ostrich patellar tendon favour the formation of multiple patellae...
June 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28674752/-operative-access-for-treatment-of-pilon-fractures
#10
REVIEW
K Klaue
BACKGROUND: Under optimal conditions, fractures of the tibial pilon can be definitively managed operatively within 6 h after the trauma. Under suboptimal conditions, preoperative antiphlogistic treatment, possibly after approximate correction and external fixation of the alignment, is a reasonable option. Osteosynthesis implies reconstruction of good joint congruency in anatomical orientation. The soft tissue coverage of the distal lower leg is relatively poorly constructed and there is a high risk of devascularization, necrosis and ensuing infection...
July 3, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28668413/comparison-of-3d-bone-models-of-the-knee-joint-derived-from-ct-and-3t-mr-imaging
#11
Aleš Neubert, Katharine J Wilson, Craig Engstrom, Rachel K Surowiec, Anthony Paproki, Nicholas Johnson, Stuart Crozier, Jurgen Fripp, Charles P Ho
PURPOSE: To examine whether magnetic resonance (MR) imaging can offer a viable alternative to computed tomography (CT) based 3D bone modeling. METHODS: CT and MR (SPACE, TrueFISP, VIBE) images were acquired from the left knee joint of a fresh-frozen cadaver. The distal femur, proximal tibia, proximal fibula and patella were manually segmented from the MR and CT examinations. The MR bone models obtained from manual segmentations of all three sequences were compared to CT models using a similarity measure based on absolute mesh differences...
August 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28651457/metallosis-in-a-dog-as-a-long-term-complication-following-total-hip-arthroplasty
#12
Mallory J DiVincenzo, Galit H Frydman, Michael P Kowaleski, Charles R Vanderburg, Barry Lai, Trisha J Oura, Samuel H Jennings
Metallosis is the accumulation of metallic debris in soft tissues resulting from wear following total joint replacement. A dog was evaluated for lameness 4 years after total hip arthroplasty using a titanium alloy and cobalt chromium total hip system. Radiographs revealed severe acetabular component wear, implant-bone interface deterioration, and peri-acetabular osteolysis. During surgical revision, black periarticular tissue surrounded the implants. Histologically, there was fibrosis and granulomatous inflammation with abundant, intra- and extracellular, black, granular material and smaller amounts of clear punctate to acicular material...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28650765/oldest-mummified-case-of-hallux-valgus-from-ancient-egypt
#13
Albert Isidro, Assumpció Malgosa
Hallux valgus is the most common orthopedic problem of the adult foot. The etiology can be congenital, associated with the occurrence of metatarsus primus varus, or acquired, which is closely related to wearing ill-fitting shoes. Hallux valgus occurs almost exclusively in shod societies and, therefore, is a very uncommon finding in archaeological remains. We present a partial first ray of the left foot belonging to a dismembered Egyptian mummy recovered in the necropolis of Sharuna (Middle Egypt) and dated to the end of the Old Kingdom (circa 2100 BC)...
May 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28638581/images-in-clinical-medicine-tophi
#14
Amr Salama, Richard Alweis
Tophi (plural of tophus, Latin for "stone") are stone-like deposits of monosodium urate in the soft tissues, synovial tissues, or in bones near the joints. They are pathognomonic for gout, the most common inflammatory arthritis in the United States, with an estimated lifetime prevalence of 4%. It is usually the end result of loss of the balance between uric acid production and excretion. It can be found anywhere in the body especially in areas of friction or trauma. It is usually painless and rarely to present as the initial manifestation of gout...
March 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28633901/patient-ethnicity-and-causative-species-determine-the-manifestations-of-anti-interferon-gamma-autoantibody-associated-nontuberculous-mycobacterial-disease-a-review
#15
REVIEW
Isano Hase, Kozo Morimoto, Takuro Sakagami, Yoshiki Ishii, Jakko van Ingen
Nontuberculous mycobacteria (NTM) infections involving anti-interferon-gamma (IFN-γ)-neutralizing autoantibodies have been described in previously immunocompetent adults. To investigate the factors underlying various disease manifestations, we reviewed 35 articles published between January 2004 and November 2016 and identified 111 NTM patients with anti-IFN-γ autoantibodies. Rapidly growing mycobacteria (RGM) accounted for 53% of the isolated species. RGM were predominant among the NTM species isolated from Thai (73%), Chinese (58%) and Filipino (56%) patients, whereas M...
May 18, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28622842/two-stage-knee-arthrodesis-with-a-modular-intramedullary-nail-due-to-septic-failure-of-revision-total-knee-arthroplasty-with-extensor-mechanism-deficiency
#16
Max J Friedrich, Jan Schmolders, Matthias D Wimmer, Andreas C Strauss, Milena M Ploeger, Dieter C Wirtz, Sascha Gravius, Thomas M Randau
BACKGROUND: Periprosthetic joint infection is a serious complication and reconstruction after failed revision total knee arthroplasty with significant bone loss and compromised soft-tissues can be challenging. Objective of this study was to assess clinical and functional results, implant survival and infection recurrence rates in patients treated with two-stage arthrodesis after failed revision TKA with extensor mechanism deficiencies due to PJI, and to identify the factors that affect outcomes after surgery...
June 13, 2017: Knee
https://www.readbyqxmd.com/read/28616779/-arthrodesis-of-the-distal-interphalangeal-joint-using-the-headless-compression-screw
#17
REVIEW
C K Spies, B Hohendorff, S Löw, L P Müller, J Oppermann, P Hahn, F Unglaub
OBJECTIVE: Arthrodesis of the distal interphalangeal joint of the fingers and interphalangeal joint of the thumb in order to gain reliable stability and function. INDICATIONS: Primary and secondary osteoarthritis, rheumatoid arthritis, defect lesions, septic joint destruction, posttraumatic joint deviation, fatal joint instability, fatal tendon lesions. CONTRAINDICATIONS: Persistent infections (empyema, osteomyelitis, phlegmon), deficient soft tissue mantle, bone/screw mismatch...
June 14, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28616259/hyperphosphatemia-in-a-patient-with-spinal-cord-injury-who-received-etidronate-for-the-treatment-of-heterotopic-ossification
#18
Sahil Taravati, Ece Cinar, Yesim Akkoc
INTRODUCTION: Heterotopic ossification (HO) is defined as ectopic bone formation around peripheral joints and in soft tissues. HO is a common complication of diseases of the central nervous system, such as spinal cord injury (SCI) and traumatic brain injury. HO is seen in up to 50% of patients with SCI and typically occurs in the first 12 weeks after onset of injury. Although no treatment method is proven to be curative, nonsteroidal anti-inflammatory drugs, irradiation of the involved body part and bisphosphonates are commonly used in the management of HO...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28604553/flow-through-free-fibula-osteocutaneous-flap-in-reconstruction-of-tibial-bone-soft-tissue-and-main-artery-segmental-defects
#19
Zonghuan Li, Aixi Yu, Baiwen Qi, Zhenyu Pan, Junhui Ding
OBJECTIVE: The aim of this report was to present the use of flow-through free fibula osteocutaneous flap for the repair of complex tibial bone, soft tissue, and main artery segmental defects. PATIENTS AND METHODS: Five patients with bone, soft tissue, and segmental anterior tibial artery defects were included. The lengths of injured tibial bones ranged from 4 to 7 cm. The sizes of impaired soft tissues were between 9 × 4 and 15 × 6 cm. The lengths of defect of anterior tibial artery segments ranged from 6 to 10 cm...
August 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28603568/current-concepts-in-radial-club-hand
#20
Takehiko Takagi, Atsuhito Seki, Shinichiro Takayama, Masahiko Watanabe
Radial club hand is a complex congenital abnormality of the radial or pre-axial border of the upper extremity. It has a wide range of phenotypes from hypoplasia of the thumb to complete absence of the radius and the first ray. Centralization with tendon transfer is a popular method for maintaining the correct position of radial club hand. On the other hand, various corrections were devised, e.g. radialization after distraction to emphasize the fact that the head of the ulna is positioned under the radial carpal bones and is no longer placed in a slot in the center of the carpus, microvascular epiphysis transfer, gradual correction using Ilizarov method, for Bayne Type III or Type IV...
2017: Open Orthopaedics Journal
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