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Anterior posterior resection

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https://www.readbyqxmd.com/read/29141359/-analysis-of-the-tibial-baseplate-coverage-and-symmetrical-tibial-prosthesis-in-primary-total-knee-arthroplasty
#1
C L Zhao, J P Wang, Z H Sun, M Li, J W Chen
Objective: To investigate the tibial baseplate coverage with symmnetrical tibial prosthesis in primary total knee arthroplasty (TKA). Methods: From August 2014 to February 2015, 39 patients (39 knees) with varus knee osteoarthritis were retrospective reviewed in Department of Orthopaedics, Tianjin Xiqing Hospital. Nine males and 30 females; aged 50 to 78 years (67±6 year). 3D tibia models of the knee were built with Mimics 10.01 software, simulated TKA surgeries were performed. The morphology of the proximal tibia was measured, including the mediolateral (ML), anteroposterior (AP) and medial and lateral tibial plateau AP dimensions...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29137900/the-posterior-capsular-ligamentous-complex-contributes-to-hip-joint-stability-in-distraction
#2
Masaki Takao, Yoshito Otake, Norio Fukuda, Yoshinobu Sato, Mehran Armand, Nobuhiko Sugano
BACKGROUND: Laxity of soft tissues after total hip arthroplasty is considered to be a cause of accelerated wear of bearing surfaces and dislocation. The purpose of this study is to assess the contribution of the anterior and posterior capsular ligamentous complexes and the short external rotators, except the quadratus femoris, on the stability of the hip against axial traction. METHODS: The study subjects comprised 7 fresh cadavers with 12 normal hip joints. In 6 hips, soft tissues surrounding the hip joint were resected in the following order to simulate the anterior approach: anterior capsule, posterior capsule, piriformis, conjoined tendon, and external obturator...
November 11, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29134185/infiltrative-intraocular-conjunctival-squamous-cell-carcinoma-after-local-resection-and-brachytherapy-clinical-and-pathological-findings
#3
Magnolia Trinidad Cano-Suárez, María Antonia Saornil-Álvarez, Ciro García-Álvarez, Francisco López-Lara, Jesús María Frutos-Baraja, Elena García-Lagarto
A pseudophakic 70-year-old man presented to the clinic with a slow-growing conjunctival mass in the left eye. He was diagnosed with a conjunctival exophytic lesion suspicious of invasive conjunctival squamous cell carcinoma (CSCC). Excisional biopsy showed a well-differentiated CSCC with positive margins and the patient underwent adjuvant brachytherapy. Six weeks later, examination of the anterior segment revealed cells in the anterior chamber and a neurotrophic corneal ulcer with corneal perforation. Considering the high suspicion of intraocular invasion of CSCC, the left eye was enucleated...
September 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29134166/anterior-extension-of-tumor-is-as-important-as-tumor-size-to-facial-nerve-outcome-and-extent-of-resection-for-vestibular-schwannomas
#4
Ricky H Wong, William R Copeland, Jeffrey T Jacob, Sananthan Sivakanthan, Jamie J Van Gompel, Harry van Loveren, Michael J Link, Siviero Agazzi
Objectives  We examined vestibular schwannoma tumor dimension and direction of growth to determine whether these correlate with facial nerve outcome as well as extent of resection (EOR). Design  Retrospective review of prospectively maintained databases. Participants  206 patients were a part of this study. Main Outcome Measures  Tumor dimensions were measured using preoperative magnetic resonance imaging, and a series of ratios were then calculated to further characterize tumor dimension. Regression analyses were performed to investigate correlation with facial nerve outcome and EOR...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29134163/prognostic-indices-for-predicting-facial-nerve-outcome-following-the-resection-of-large-acoustic-neuromas
#5
Kurt Grahnke, Jonathan R Garst, Brendan Martin, John P Leonetti, Douglas E Anderson
This study analyzes the simple ratio of anterior-to-posterior extension of large (>2.5 cm) acoustic neuromas relative to the internal auditory canal (ICA; anterior-posterior [A/P] index) as a tool for predicting risk of facial nerve (FN) injury. In total, 105 patients who underwent microsurgical resection for large acoustic neuromas were analyzed retrospectively. House-Brackmann (HB) scores were assessed immediately postoperatively, at 1 month, and at 1 year. Lateral-medial, inferior-superior, A/P, and maximum diameters were measured from preoperative magnetic resonance images...
December 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29129378/transvaginal-natural-orifice-transluminal-endoscopic-surgery-a%C3%A2-new-approach-to-myomectomy
#6
Jan Baekelandt
OBJECTIVE: To demonstrate a new approach for performing a myomectomy via transvaginal natural-orifice transluminal endoscopic surgery (vNOTES) as an alternative to laparoscopic myomectomy. DESIGN: Stepwise explanation of the technique with the use of original video footage. SETTING: Hospital. PATIENT(S): Eight patients were treated transvaginally for intramural, subserosal, and pedunculated myomas. INTERVENTION(S): In case of a posterior myoma, a 2...
November 9, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/29113647/super-radical-hysterectomy-for-recurrent-cervical-cancer
#7
Hee Seung Kim, Ranah Kim, Maria Lee
BACKGROUND: Recurrent cervical cancer with the pelvic side wall invasion has a deleterious effect on prognosis if there is no alternative method to achieve local tumor control [1, 2]. For the surgical treatment, super-radical hysterectomy has been introduced by Ryukichi Mibayashi in 1941 [3, 4]. However, its feasibility and safety is still on debate because of a lack of reproducibility and high level of surgical techniques. Thus, we showed the surgical procedure of super-radical hysterectomy for recurrent cervical cancer...
December 2017: Surgical Oncology
https://www.readbyqxmd.com/read/29111197/the-critical-acromial-point-the-anatomic-location-of-the-lateral-acromion-in-the-critical-shoulder-angle
#8
Michael R Karns, Matthijs Jacxsens, William J Uffmann, Dane C Todd, Heath B Henninger, Robert T Burks
BACKGROUND: Acromioplasty has been proposed as a means of altering elevated critical shoulder angles (CSAs). We aimed to localize the critical acromion point (CAP) responsible for the acromial contribution of the CSA and determine whether resection of the CAP can alter the CSA to a normal range. METHODS: The CAP and 3-dimensional (3D) CSAs were determined on 3D computed tomography reconstructions of 88 cadaveric shoulders and compared with corresponding CSAs on digitally reconstructed radiographs...
October 27, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29095752/double-docking-technique-for-femtosecond-laser-assisted-deep-anterior-lamellar-keratoplasty
#9
Damien Guindolet, Diem T Nguyen, Ciara Bergin, Serge Doan, Isabelle Cochereau, Eric E Gabison
PURPOSE: To describe a new and safe surgical technique of deep anterior lamellar keratoplasty (DALK) using the femtosecond laser (FSL) and intraoperative optical coherence tomography (iOCT) for surgical management of corneal thinning and/or opacities. The technique was coined the double-docking procedure for DALK (DD-DALK). METHODS: FSL-integrated iOCT was used for direct visualization and calibration to perform precise anterior lamellar and side cuts for the removal of the anterior stroma...
October 31, 2017: Cornea
https://www.readbyqxmd.com/read/29081038/atypical-meningioma-progression-free-survival-in-161-cases-treated-at-our-institution-with-surgery-versus-surgery-and-radiotherapy
#10
Waseem Masalha, Dieter Henrik Heiland, Pamela Franco, Daniel Delev, Jan Gerrit Haaker, Oliver Schnell, Christian Scheiwe, Juergen Grauvogel
Although atypical meningioma recurs frequently in spite of total resection and/or radiotherapy, no consensus on optimal adjuvant management was found. However, several retrospective studies analysed the additional effect of adjuvant radiotherapy in atypical meningioma with inconsistent results. Therefrom, the purpose of this study was to evaluate prognostic factors influencing the recurrence/progression and progression-free survival (PFS) rates of atypical meningioma, particularly focused on the role of postoperative adjuvant radiotherapy...
October 28, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29075964/strategy-of-laparoscopic-surgery-for-colon-cancer-of-the-splenic-flexure-a-novel-approach
#11
Naoki Matsumura, Hiromi Tokumura, Fumito Saijo, Yu Katayose
BACKGROUND: The splenic flexure (SF) anatomy is complex due to multiple vessels, surrounding organs, layers, and irregular adhesions [1-3]. METHODS: Our laparoscopic approach involves a lateral-to-medial approach to the left-sided transverse mesocolon (TM), a medial-to-lateral approach to the left mesocolon (LM), and take-down of the remnant SF. First, the omental bursa is opened and its posterior wall and the anterior layer of the TM are dissected along the pancreas, where a gauze is placed...
October 26, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29072656/-the-endoscopic-anatomy-of-the-middle-ear-a-dissection-study
#12
R M Rzaev, R R Rzaev
The objective of the present work was to study the specific endoscopic anatomical features of the middle ear using the dissected temporal bones with the intact tympanic membrane. The 18 cm long endoscopes 4 mm in diameter with a visual angle from 0 to 45 degrees in the combination with some other microinstruments, such as ear pincers, needles, curettes, elevators, and suction tubes, were used during the examination. It was shown that endomeato-transtympanic endosopy provides a panoramic view of almost all structures of the middle ear...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/29050166/-clinic-pathological-and-ultrasonographic-features-of-primary-thyroid-lymphoma
#13
X M Zhang, L Nong, X Ran, M Li
Objective: To analyze the ultrasonographic and clinicopathological features of primary thyroid lymphoma(PTL). Methods: The ultrasonographic and clinicopathological featuresof 21 cases of pathologically-confirmed PTLs were analyzed retrospectively. Results: Of all 21 PTLs, 15 cases were diffuse large B-cell lymphoma, 4 were mucosal-associated lymphoid tissue extranodular marginal zone B-cell lymphoma, 1 was small B-cell lymphoma and 1 was classical Hodgkin lymphoma. Eight cases were proved by pathology with concomitant Hashimoto's thyroiditis...
October 10, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29049269/long-term-surgical-outcomes-after-early-definitive-spinal-fusion-for-early-onset-scoliosis-with-neurofibromatosis-type-1-at-mean-follow-up-of-14-years
#14
Ryoji Tauchi, Noriaki Kawakami, Michael Anton Castro, Tetsuya Ohara, Toshiki Saito, Kazuaki Morishita, Ippei Yamauchi
BACKGROUND: Several authors mentioned surgical outcome for scoliosis associated with neurofibromatosis type 1 (NF-1). However, no studies have summarized long-term surgical outcomes after surgical treatment of early-onset scoliosis (EOS) with NF-1. The purpose of this study is to evaluate the long-term surgical outcome after early definitive spinal fusion for EOS in NF-1 patients. METHODS: We performed a retrospective review on a cohort of 11 patients diagnosed with EOS associated with NF-1 between 1990 and 2009 in our hospital...
October 18, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29046469/-a-rare-case-of-ruptured-unruptured-miniature-aneurysms-originating-from-the-infundibular-dilatation-of-the-callosomarginal-artery-branching-from-the-infracallosal-a2-segment-of-the-azygos-anterior-cerebral-artery
#15
Shota Yoshimura, Chika Somagawa, Kei Satoh, Yutaka Fukuda, Takeshi Hiu, Tomonori Ono, Ryujiro Ushijima, Keisuke Toda, Keisuke Tsutsumi
We report the first case of two de novo miniature aneurysms(ruptured/unruptured)emerging from the infundibular dilatation(ID)of the callosomarginal artery, which branches from the infracallosal(A2)segment of the azygos anterior cerebral artery(AACA), in a 36-year-old woman. The patient had previously been diagnosed with a miniature, unruptured aneurysm, occurring in the A2 segment of the AACA, detected by CT angiography(CTA)at another hospital two years ago, and had been followed up with MR angiography(MRA)every 6 months...
October 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29037973/comparison-of-anterior-posterior-vertebral-column-resection-versus-anterior-posterior-spinal-fusion-for-severe-and-rigid-scoliosis
#16
Chunguang Zhou, Limin Liu, Yueming Song, Ganjun Feng, Xi Yang, Lei Wang
BACKGROUND CONTEXT: Many different correction methods have been reported to treat severe and rigid scoliosis. In the past, anterior/posterior spinal fusion (APSF), which included an anterior release followed by posterior instrumented fusion was widely applied. In recent years, anterior/posterior vertebral column resection (APVCR) is used to treat severe and rigid scoliosis. PURPOSE: To compare the clinical results of APSF and APVCR for severe and rigid scoliosis...
October 13, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29032217/preoperative-prediction-of-the-necessity-for-anterior-clinoidectomy-during-microsurgical-clipping-of-ruptured-posterior-communicating-artery-aneurysms
#17
Tomoya Kamide, Jan-Karl Burkhardt, Halima Tabani, Michael Safaee, Michael T Lawton
BACKGROUND: Although most posterior communicating artery (PCoA) aneurysms can be clipped easily with excellent results, some require anterior clinoidectomy for safe and complete clipping. OBJECTIVE: To review our microsurgical series of ruptured PCoA aneurysms and identify the preoperative predictors for anterior clinoidectomy during microsurgical clipping for PCoA aneurysms METHODS: Results from microsurgical clipping of 104 patients with ruptured PCoA aneurysms were retrospectively reviewed...
October 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29027895/changes-in-foraminal-area-with-anterior-decompression-versus-keyhole-foraminotomy-in-the-cervical-spine-a-biomechanical-investigation
#18
Jacqueline Nguyen, Bryant Chu, Calvin C Kuo, Jeremi M Leasure, Christopher Ames, Dimitriy Kondrashov
OBJECTIVE Anterior cervical discectomy and fusion (ACDF) with or without partial uncovertebral joint resection (UVR) and posterior keyhole foraminotomy are established operative procedures to treat cervical disc degeneration and radiculopathy. Studies have demonstrated reliable results with each procedure, but none have compared the change in neuroforaminal area between indirect and direct decompression techniques. The purpose of this study was to determine which cervical decompression method most consistently increases neuroforaminal area and how that area is affected by neck position...
October 13, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29018655/the-involvement-of-sensory-motor-networks-in-reflex-seizure
#19
Hime Suzuki, Rei Enatsu, Aya Kanno, Satoko Ochi, Takashi Murahara, Shogo Yazawa, Hideaki Shiraishi, Nobuhiro Mikuni
Reflex seizures are epileptic events triggered by specific external stimuli, or less commonly, internal mental stimuli. Understanding the characteristics of reflex seizures is important to elucidate the mechanisms underlying network abnormalities in epileptic conditions. This report details a patient with medically intractable reflex seizures provoked by sensory stimuli to the patient's right foot. Single-photon emission computed tomography (SPECT) during the seizure induced by sensory stimulation showed hyperperfusion in broad sensory-motor networks (dorsal column-medial lemniscus pathway, left thalamus, bilateral postcentral gyri and posterior parietal cortices, left supplementary motor area (SMA), and left paracentral lobule) and left caudateputamen...
October 2017: NMC Case Rep J
https://www.readbyqxmd.com/read/29017306/solitary-osteochondroma-presenting-as-a-dumbbell-tumor-compressing-the-cervical-spinal-cord
#20
Ju Hyung Lee, Sung Han Oh, Pyung Goo Cho, Eun Mi Han, Je Beom Hong
We report a case of a solitary osteochondroma as a dumbbell tumor compressing the spinal cord and its surgical strategy. The patient is a 16-year-old female with longstanding posterior neck pain and left arm abduction weakness. She was examined by plain X-ray, three-dimensional-computed tomography, magnetic resonance imaging, and vertebral angiography. The analyses indicated a calcified extradural mass compressing the cord in the C3-4 portion extending into the neural and vertebral foramen with eroded vertebral body...
September 2017: Korean Journal of Spine
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