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Advances in Orthopedics

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https://www.readbyqxmd.com/read/29971167/minimally-invasive-plate-osteosynthesis-for-proximal-humerus-fractures-a-retrospective-study-describing-principles-and-advantages-of-the-technique
#1
Riccardo Luigi Alberio, Matteo Del Re, Federico Alberto Grassi
Background: The aim of this study was to evaluate the clinical and radiographic results after minimally invasive plate osteosynthesis (MIPO) for proximal humerus fractures. Potential advantages of this approach include the easier exposure of the greater tuberosity and the limited surgical dissection around the fracture site. Materials and Methods: From October 2011 to March 2016, thirty-nine patients (32 women, 7 men) with a mean age of 64.9 years (range: 48-80) were surgically treated with the MIPO technique for proximal humeral fractures...
2018: Advances in Orthopedics
https://www.readbyqxmd.com/read/29951320/allograft-reconstruction-of-the-extensor-mechanism-after-resection-of-soft-tissue-sarcoma
#2
Daniel A Müller, Giovanni Beltrami, Guido Scoccianti, Pierluigi Cuomo, Francesca Totti, Rodolfo Capanna
Introduction: Soft tissue tumors around the knee joint still pose problems for the excision and subsequent reconstruction. Methods: In the 6 included patients the soft tissue sarcoma has its base on the anterior surface of the extensor mechanism and expands towards the skin. The entire extensor apparatus (quadriceps tendon, patella, and patellar tendon) was resected and replaced by a fresh-frozen allograft. Results: The mean follow-up was 6...
2018: Advances in Orthopedics
https://www.readbyqxmd.com/read/29951319/closed-reduction-in-a-hyperextended-supine-position-with-percutaneous-transsacral-transiliac-and-iliosacral-screw-fixation-for-denis-zone-iii-sacral-fractures
#3
Hideto Irifune, Suguru Hirayama, Nobuyuki Takahashi, Mitsumasa Chiba, Toshihiko Yamashita
Background: Herein, we demonstrate the clinical results of closed reduction in a hyperextended supine position with transsacral-transiliac (TSTI) and iliosacral (IS) screw fixations for Denis zone III sacral fractures. Patients and Methods: Sixteen consecutive patients with Denis zone III sacral fractures who were treated between January 2009 and September 2016 were evaluated. All patients were treated using percutaneous TSTI/IS screw fixation during closed reduction performed with patients placed in a hyperextended supine position with body manipulation...
2018: Advances in Orthopedics
https://www.readbyqxmd.com/read/29862085/comparison-of-atypical-and-osteoporotic-femoral-shaft-fractures-in-the-elderly-a-multicenter-study
#4
Takanori Miura, Hiroaki Kijima, Noriyuki Ishikawa, Toshihito Ebina, Takayuki Tani, Shuichi Chida, Tetsuya Suzuki, Satoshi Yumto, Hiroshi Tazawa, Naohisa Miyakoshi, Yoichi Shimada
Background: In atypical femoral fractures, owing to the high rates of complications and delayed healing that accompany the plate fixation, the most favorable treatment is intramedullary nailing. Although there is insufficient evidence, plate fixation is chosen due to anterolateral bowing of the femur. This study compared the bone healing time and rates of complications in atypical femoral shaft fractures and osteoporotic femoral shaft fractures. Methods: We searched the medical records of 3 institutions in Japan for patients with femoral shaft fractures who visited between 1 January 2010 and 31 December 2015...
2018: Advances in Orthopedics
https://www.readbyqxmd.com/read/29850260/spinopelvic-dissociation-comparison-of-outcomes-of-percutaneous-versus-open-fixation-strategies
#5
Jeffrey M Pearson, Thomas E Niemeier, Gerald McGwin, Sakthivel Rajaram Manoharan
Introduction: Spinopelvic dissociation injuries are historically treated with open reduction with or without decompressive laminectomy. Recent technological advances have allowed for percutaneous fixation with indirect reduction. Herein, we evaluate outcomes and complications between patients treated with open reduction versus percutaneous spinopelvic fixation. Methods: Retrospective review of patients undergoing spinopelvic fixation from a single, level one trauma center from 2012 to 2017...
2018: Advances in Orthopedics
https://www.readbyqxmd.com/read/29755793/timing-of-frontal-plane-trunk-lean-not-magnitude-mediates-frontal-plane-knee-joint-loading-in-patients-with-moderate-medial-knee-osteoarthritis
#6
Freyja Hálfdanardóttir, Dan K Ramsey, Kristín Briem
The purpose of this study was to examine the influence of trunk lean and contralateral hip abductor strength on the peak knee adduction moment (KAM) and rate of loading in persons with moderate medial knee osteoarthritis. Thirty-one males (17 with osteoarthritis, 14 controls) underwent 3-dimensional motion analysis, strength testing of hip abductors, and knee range of motion (ROM) measures, as well as completing the knee osteoarthritis outcome score (KOOS). No differences were found between groups or limbs for gait cycle duration, but the osteoarthritis group had longer double-limb support during weight acceptance ( p < 0...
2018: Advances in Orthopedics
https://www.readbyqxmd.com/read/29692935/percutaneous-injection-of-strontium-containing-hydroxyapatite-versus-polymethacrylate-plus-short-segment-pedicle-screw-fixation-for-traumatic-a2-and-a3-ao-type-fractures-in-adults
#7
Panagiotis Korovessis, Eva Mpountogianni, Vasileios Syrimpeis, Andreas Baikousis, Vasileios Tsekouras
Introduction: Polymethacrylate (PMMA) is commonly used in vertebroplasty and balloon kyphoplasty, but its use has been associated with complications. This study tests three hypotheses: (1) whether strontium hydroxyapatite (Sr-HA) is equivalent to PMMA for restoring thoracolumbar vertebral body fractures, (2) whether the incidence of PMMA leakage is similar to that of Sr-HA leakage, and (3) whether Sr-HAis is resorbed and substituted by new vertebral bone. Materials and Methods: Two age- and sex-matched groups received short percutaneous pedicle screw fixation plus PEEK implant (Kiva, VCF Treatment System, Benvenue Medical, Santa Clara, CA, USA) filled with either Sr-HA (Group A) or PMMA (Group B) after A2- and A3/AO-type thoracolumbar vertebral body fractures...
2018: Advances in Orthopedics
https://www.readbyqxmd.com/read/29682354/pathology-and-treatment-of-traumatic-cervical-spine-syndrome-whiplash-injury
#8
REVIEW
Nobuhiro Tanaka, Kivanc Atesok, Kazuyoshi Nakanishi, Naosuke Kamei, Toshio Nakamae, Shinji Kotaka, Nobuo Adachi
Traumatic cervical syndrome comprises the various symptoms that occur as a result of external force such as that of a traffic accident. In 1995, the Quebec Task Force on whiplash-associated disorders (WAD) formulated the Quebec classification, with accompanying clinical practice guidelines. These guidelines were in accordance with the stated clinical isolated or combined symptoms of the syndrome: neck pain, headaches, dizziness, numbness of head or face, eye pain, vision loss, double vision, tinnitus, hearing loss, nausea, and numbness and/or weakness of extremities...
2018: Advances in Orthopedics
https://www.readbyqxmd.com/read/29593913/the-impact-of-pinless-navigation-in-conventionally-aligned-total-knee-arthroplasty
#9
P Koenen, M M Schneider, T R Pfeiffer, B Bouillon, H Bäthis
Background: Restoration of the mechanical axis is a main objective in total knee replacement (TKR). Aim of this study was to analyse the verification tool of a pinless navigation system in conventional TKR (cTKR). Methods: In a prospective study, 147 TKR were performed by conventional technique. Using the "pinless verification" mode of a smartphone based navigation system, the cutting block position and final resection plane for distal femur and proximal tibial resection were measured...
2018: Advances in Orthopedics
https://www.readbyqxmd.com/read/29535875/posttraumatic-spinal-cord-injury-without-radiographic-abnormality
#10
REVIEW
Kivanc Atesok, Nobuhiro Tanaka, Andrew O'Brien, Yohan Robinson, Dachling Pang, Donald Deinlein, Sakthivel Rajaram Manoharan, Jason Pittman, Steven Theiss
"Spinal Cord Injury without Radiographic Abnormality" (SCIWORA) is a term that denotes objective clinical signs of posttraumatic spinal cord injury without evidence of fracture or malalignment on plain radiographs and computed tomography (CT) of the spine. SCIWORA is most commonly seen in children with a predilection for the cervical spinal cord due to the increased mobility of the cervical spine, the inherent ligamentous laxity, and the large head-to-body ratio during childhood. However, SCIWORA can also be seen in adults and, in rare cases, the thoracolumbar spinal cord can be affected too...
2018: Advances in Orthopedics
https://www.readbyqxmd.com/read/29403664/cost-effectiveness-analysis-of-total-hip-arthroplasty-performed-by-a-canadian-short-stay-surgical-team-in-ecuador
#11
Michael Schlegelmilch, Saifee Rashiq, Barbara Moreau, Patricia Jarrín, Bach Tran, Anderson Chuck
Background: Few charitable overseas surgical missions produce cost-effectiveness analyses of their work. Methods: We compared the pre- and postoperative health status for 157 total hip arthroplasty (THA) patients operated on from 2007 to 2011 attended by an annual Canadian orthopedic mission to Ecuador to determine the quality-adjusted life years (QALYs) gained. The costs of each mission are known. The cost per surgery was divided by the average lifetime QALYs gained to estimate an incremental cost-effectiveness ratio (ICER) in Canadian dollars per QALY...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/29312787/the-results-of-hemivertebra-resection-by-the-posterior-approach-in-children-with-a-mean-follow-up-of-five-years
#12
Ramazan Erden Erturer, Bekir Eray Kilinc, Bahadir Gokcen, Sinan Erdogan, Kursat Kara, Cagatay Ozturk
Aim: To evaluate the radiologic and clinical results of patients who underwent deformity correction and stabilization for congenital spinal deformities using pedicle screws after hemivertebra resection. Material and Method: Nine patients, mean age 9.2, who underwent posterior hemivertebrectomy and transpedicular fixation for congenital spinal deformity and had longer than five years of follow-up were evaluated retrospectively. The hemivertebrae were located in the thoracic region in 4 patients and thoracolumbar transition region in 5 patients...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/29181200/epidemiology-of-c2-fractures-in-the-21st-century-a-national-registry-cohort-study-of-6-370-patients-from-1997-to-2014
#13
Anna-Lena Robinson, Claes Olerud, Yohan Robinson
Objective: C2 fractures are a common injury in the elderly population. Treatment is often complicated due to osteoporosis and patient comorbidity. This study aims to investigate the incidence and treatment trend of C2 fractures in Sweden. Methods: Patients with the principal and secondary diagnosis of fracture of the second vertebrae (ICD-10: S12.1) between 1997 and 2014 were identified in the Swedish National Patient Registry (NPR). Results: Between 1997 and 2014, 6,370 patients with a C2 fracture (51% male; age: 72 ± 18) were identified in the NPR...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/29138696/use-of-common-inflammatory-markers-in-the-long-term-screening-of-total-hip-arthroprosthesis-infections-our-experience
#14
Gabriele Falzarano, Antonio Piscopo, Predrag Grubor, Giuseppe Rollo, Antonio Medici, Valerio Pipola, Michele Bisaccia, Auro Caraffa, Elizabeth Mary Barron, Francesco Nobile, Raffaele Cioffi, Luigi Meccariello
Orthopedic implants have become essential components of modern medicine. The risk of infection of total hip arthroplasty (THA) is 1.5%-2%. Are the C-reactive protein (CRP), the erythrocyte sedimentation rate (ESR), and procalcitonin (PCT) good markers for THA infection screenings? From February 2009 to December 2012 at our Department of Orthopedics and Traumatology, 1248 patients were treated with THA. No prosthesis was cemented. All patients received antibiotic prophylaxis. All patients were discharged approximately 7...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/29098088/intraoperative-disinfection-by-pulse-irrigation-with-povidone-iodine-solution-in-spine-surgery
#15
Vincenzo De Luna, Federico Mancini, Fernando De Maio, Gabriele Bernardi, Ernesto Ippolito, Roberto Caterini
Background: Deep wound infection in spine surgery is a debilitating complication for patients and increases costs. The objective of this prospective study was to evaluate the efficacy of wound pulse irrigation with a dilute povidone-iodine solution in the prevention of surgical site infection. Methods: 50 patients undergoing spinal surgery were randomly divided into two groups (A and B) of 25 patients each. In group A, wounds were irrigated with dilute (3%) povidone-iodine solution through a low-pressure pulsatile device...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/28831312/comparing-dorsal-tangential-and-lateral-views-of-the-wrist-for-detecting-dorsal-screw-penetration-after-volar-plating-of-distal-radius-fractures
#16
Juan M Giugale, Mitchell S Fourman, Deidre L Bielicka, John R Fowler
BACKGROUND: The dorsal tangential (DT) view has been shown to improve the detection of dorsal screw perforation during volar distal radius fracture fixation. Here we performed a cadaveric imaging survey study to evaluate if the DT view was uniformly beneficial for all screws. METHODS: Standardized placement of fixed-angle volar distal radius plates was performed on two cadavers. Fluoroscopic images depicting variable screw perforation of each of the four screw holes on the plate were generated...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/28567308/cut-off-value-of-medial-meniscal-extrusion-for-knee-pain
#17
Hiroaki Kijima, Naohisa Miyakoshi, Yuji Kasukawa, Yoshinori Ishikawa, Hayato Kinoshita, Kentaro Ohuchi, Masazumi Suzuki, Nozomi Kaga, Chie Sato, Shuichi Chida, Yoichi Shimada
Purpose . Medial meniscal extrusion (MME) has attracted attention as an index of knee pain in conjunction with clinical symptoms that could be more useful than the diagnosis of knee osteoarthritis on X-ray. However, the size of MME that would cause knee pain has not been clarified. The aim of the present study was to investigate the cut-off value of MME for knee pain. Methods . A total of 318 knees were evaluated. The presence of current or past knee pain was confirmed by interview. Next, MME was measured using vertical sonographic images of the medial joint spaces during weightbearing...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/28348892/minimizing-stress-shielding-and-cement-damage-in-cemented-femoral-component-of-a-hip-prosthesis-through-computational-design-optimization
#18
Abdellah Ait Moussa, Justin Fischer, Rohan Yadav, Morshed Khandaker
The average life expectancy of many people undergoing total hip replacement (THR) exceeds twenty-five years and the demand for implants that increase the load-bearing capability of the bone without affecting the short- or long-term stability of the prosthesis is high. Mechanical failure owing to cement damage and stress shielding of the bone are the main factors affecting the long-term survival of cemented hip prostheses and implant design must realistically adjust to balance between these two conflicting effects...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/28168060/3d-printing-aids-acetabular-reconstruction-in-complex-revision-hip-arthroplasty
#19
Andrew J Hughes, Cathal DeBuitleir, Philip Soden, Brian O'Donnchadha, Anthony Tansey, Ali Abdulkarim, Colm McMahon, Conor J Hurson
Revision hip arthroplasty requires comprehensive appreciation of abnormal bony anatomy. Advances in radiology and manufacturing technology have made three-dimensional (3D) representation of osseous anatomy obtainable, which provide visual and tactile feedback. Such life-size 3D models were manufactured from computed tomography scans of three hip joints in two patients. The first patient had undergone multiple previous hip arthroplasties for bilateral hip infections, resulting in right-sided pelvic discontinuity and a severe left-sided posterosuperior acetabular deficiency...
2017: Advances in Orthopedics
https://www.readbyqxmd.com/read/28053787/healing-of-the-acutely-injured-anterior-cruciate-ligament-functional-treatment-with-the-acl-jack-a-dynamic-posterior-drawer-brace
#20
Matthias Jacobi, Nikolaus Reischl, Karolin Rönn, Robert A Magnusson, Emanuel Gautier, Roland P Jakob
Background . The injured anterior cruciate ligament (ACL) has a limited healing capacity leading to persisting instability. Hypothesis/Purpose . To study if the application of a brace, producing a dynamic posterior drawer force, after acute ACL injury reduces initial instability. Study Design . Cohort study. Methods . Patients treated with the ACL-Jack brace were compared to controls treated with primary ACL reconstruction und controls treated nonsurgically with functional rehabilitation. Measurements included anterior laxity (Rolimeter), clinical scores (Lysholm, Tegner, and IKDC), and MRI evaluation...
2016: Advances in Orthopedics
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