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Anterior posterior resection

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https://www.readbyqxmd.com/read/28332088/simple-technique-of-repair-for-barlow-syndrome-with-posterior-resection-and-chordal-transfer-via-minimally-invasive-approach-primary-experience-in-a-consecutive-series-of-22-patients
#1
H Kamiya, Payam Akhyari, J-P Minol, A C Ites, T Weinreich, S Sixt, P Rellecke, U Boeken, A Albert, A Lichtenberg
OBJECTIVE: Current techniques for mitral valve repair (MVR) in Barlow's disease require high level of surgical expertise due to a complex anatomy. A novel and simple standardized technique that particularly considers the pathological changes of the mitral valve in Barlow's disease has been developed. METHODS: Between 2009 and 2013, 22 patients underwent minimally invasive MVR for Barlow's disease and severe mitral regurgitation (MR). A simple, standardized technique was applied, including resection of P2 segment of posterior mitral leaflet (PML) with preservation of the shortest chordae, transfer of the preserved chordae to A2, and implantation of a semi-rigid open ring...
March 22, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28331989/does-the-tibia-component-design-affect-the-need-for-offset-stems-in-revision-total-knee-arthroplasty
#2
X Foruria, T Schmidt-Braekling, D Arana Nabarte, M Faschingbauer, M Kasparek, F Boettner
INTRODUCTION: The stem/keel location varies between anatomic and symmetric revision tibial baseplates. The current study investigates the impact of an anatomic versus symmetric stem location on the need for offset couplers in revision total knee arthroplasty. MATERIALS AND METHODS: Hip to ankle standing radiographs and lateral radiographs of 75 patients were analyzed using digital templating software. The offset in the anterior-posterior as well as medial-lateral plane between the center of the tibial diaphysis and the stem of the tibial baseplate were determined for an anatomic and symmetric tibial baseplate, respectively...
March 22, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28327915/vascularized-fibular-strut-autografts-in-spinal-reconstruction-after-resection-of-vertebral-chordoma-or-chondrosarcoma-a-retrospective-series
#3
Vijay Yanamadala, Peter A Rozman, Jay I Kumar, Joseph H Schwab, Sang-Gil Lee, Francis J Hornicek, William T Curry
BACKGROUND: Margin-free en bloc resection is the best medical practice for primary vertebral chordoma and chondrosarcoma. Spinal reconstruction following total spondylectomy requires reconstructive interbody graft (allograft, devascularized autograft, vascularized autograft, or cage constructs) and instrumentation. An important consideration when choosing grafts and instrumentation is the durability and the long-term success of the fusion without subsidence. OBJECTIVE: To evaluate the potential use of vascularized fibular autograft as a reconstructive strategy after en bloc resection...
January 13, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28323709/single-stage-transpedicular-vertebrectomy-and-expandable-cage-placement-for-treatment-of-unstable-mid-and-lower-lumbar-burst-fractures
#4
Jong-Il Choi, Bum-Joon Kim, Sung-Kon Ha, Sang-Dae Kim, Dong-Jun Lim, Se-Hoon Kim
STUDY DESIGN: Retrospective clinical and radiographic study. OBJECTIVE: To examine the efficacy and safety of vertebrectomy and expandable cage placement by a single-stage posterior approach for unstable mid and lower lumbar burst fractures (below the L3). SUMMARY OF BACKGROUND DATA: Patients with unstable mid and lower lumbar burst fractures require surgical treatment to relieve pain, address paralysis, and stabilize the spine to prevent further segmental deformity...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28314889/reconstructing-the-anterolateral-ligament-does-not-decrease-rotational-knee-laxity-in-acl-reconstructed-knees
#5
Kasper Stentz-Olesen, Emil Toft Nielsen, Sepp de Raedt, Peter Bo Jørgensen, Ole Gade Sørensen, Bart Kaptein, Kjeld Søballe, Maiken Stilling
PURPOSE: Little is known about the anterolateral ligament's (ALL) influence on knee laxity. The purpose of this study was to investigate rotational knee laxity against a pure axial rotational stress using radiostereometric analysis (RSA) after cutting and reconstructing both the anterior cruciate ligament (ACL) and the ALL. METHODS: Eight human donor legs were positioned and stereoradiographically recorded at 0°, 30° and 60° of knee flexion using a motorised fixture, while an internally rotating force of 4 Nm was applied to the foot...
March 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28298060/a-cadaveric-model-evaluating-the-influence-of-bony-anatomy-and-the-effectiveness-of-partial-scapulectomy-on-decompression-of-the-scapulothoracic-space-in-snapping-scapula-syndrome
#6
Dimitri S Tahal, J Christoph Katthagen, Daniel Cole Marchetti, Jacob D Mikula, Scott R Montgomery, Alex Brady, Grant J Dornan, Peter J Millett
BACKGROUND: Snapping scapula syndrome (SSS) is caused by bony and/or soft tissue impingement in the scapulothoracic articulation. Surgical resection of the superomedial angle (SMA) plus bursectomy can provide relief in most cases; however, the amount needed to achieve adequate scapulothoracic space decompression (SSD) is unknown. PURPOSE: The aim of this study was to evaluate the effectiveness of partial scapulectomy and the influence of bony anatomy on SSD. It was hypothesized that the anterior offset and costomedial angle would correlate with the amount of bony resection needed to achieve adequate SSD...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28293922/highly-variable-femoral-morphology-in-osteoarthritic-chinese-are-prostheses-today-sufficiently-suitable
#7
Yunjie Zhang, Xiaofeng Wang, Zongming Wu, Qing Xia, Yunchao Shao
Background We aimed to retrospectively investigate the morphology of the resected surfaces of femurs in Chinese patients who underwent total knee arthroplasty (TKA) and to assess the suitability of contemporary femoral components. Methods Measurements on three-dimensional reconstruction after virtual bone cutting were performed on 142 knees from Chinese TKA candidates. The anteroposterior (AP) and mediolateral (ML) dimensions, aspect ratio (ML/AP), and posterior condylar angle (PCA) were measured in the axial plane; the height and length of medial and lateral anterior condyles and the maximal width of the anterior condyles were measured in the frontal plane...
March 14, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28291918/organ-motion-in-pediatric-high-risk-neuroblastoma-patients-using-four-dimensional-computed-tomography
#8
Sneha Kannan, Boon-Keng Kevin Teo, Timothy Solberg, Christine Hill-Kayser
PURPOSE/OBJECTIVE(S): High-risk neuroblastoma (HR-NBL) requires multimodality treatment, including external beam radiation of the primary tumor site following resection. Radiotherapy planning must take into account motion of the target and adjacent normal anatomy, both of which are poorly understood in the pediatric population, and which may differ significantly from those in adults. METHODS/MATERIALS: We examined 4DCT scans of 15 consecutive pediatric patients treated for HR-NBL, most with tumors in the abdominal cavity...
January 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28291402/complication-rates-associated-with-3-column-osteotomy-in-82-adult-spinal-deformity-patients-retrospective-review-of-a-prospectively-collected-multicenter-consecutive-series-with-2-year-follow-up
#9
Justin S Smith, Christopher I Shaffrey, Eric Klineberg, Virginie Lafage, Frank Schwab, Renaud Lafage, Han Jo Kim, Richard Hostin, Gregory M Mundis, Munish Gupta, Barthelemy Liabaud, Justin K Scheer, Bassel G Diebo, Themistocles S Protopsaltis, Michael P Kelly, Vedat Deviren, Robert Hart, Doug Burton, Shay Bess, Christopher P Ames
OBJECTIVE Although 3-column osteotomy (3CO) can provide powerful alignment correction in adult spinal deformity (ASD), these procedures are complex and associated with high complication rates. The authors' objective was to assess complications associated with ASD surgery that included 3CO based on a prospectively collected multicenter database. METHODS This study is a retrospective review of a prospectively collected multicenter consecutive case registry. ASD patients treated with 3CO and eligible for 2-year follow-up were identified from a prospectively collected multicenter ASD database...
February 17, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28290171/effects-of-surgical-techniques-on-long-term-results-in-patients-with-degenerative-mitral-valve-bileaflet-prolapse
#10
Giuseppe Petrone, Renato Bellitti, Clemente Pascarella, Gianantonio Nappi, Giuseppe Signoriello, Pasquale Santé
BACKGROUND: The study aim was to evaluate the long-term results in patients with degenerative mitral valve bileaflet prolapse (DMVBLP) undergoing mitral valve repair (MVr) or mitral valve replacement (MVR), and to compare the consequences of survival related to each technique. METHODS: Between 2001 and 2012, a total of 421 patients underwent isolated primary surgery for DMVBLP. MVr was performed in 146 patients (34.7%), and MVR in 275 (65.3%). MVR patients were allocated to two subgroups...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28283707/evaluating-the-cartilage-adjacent-to-the-site-of-repair-surgery-with-glycosaminoglycan-specific-magnetic-resonance-imaging
#11
Ulrich Koller, Sebastian Apprich, Benjamin Schmitt, Reinhard Windhager, Siegfried Trattnig
PURPOSE: The glycosaminoglycan (GAG) chemical exchange saturation transfer (CEST) imaging method (gagCEST) makes it possible to assess and quantify the GAG concentration in human cartilage. This biochemical imaging technique facilitates detection of the loss of GAG in the course of osteoarthritis. The gagCEST technique was used to analyse the perilesional zone (PLZ) adjacent to repair tissue after cartilage repair surgery, to determine whether there are biochemical changes present in the sense of degeneration...
March 10, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28281481/a-novel-method-of-minimally-invasive-rectus-abdominis-muscle-flap-harvest-laparoscopic-surgeons-take-note
#12
Tabish Aijaz, Dhruv Singhal, Sanda A Tan, Atif Iqbal
The rectus abdominis muscle (RAM) is a workhorse flap to fill or repair abdominal defects. A drawback of an open RAM harvest is donor site morbidity, and minimally invasive techniques for flap harvesting have been previously proposed but involve vertical division of the rectus fascia. We present a case of a 52-year-old woman with a recurrent rectovaginal fistula in a radiated field treated with a laparoscopic low anterior resection with simultaneous RAM flap harvest utilising a single Pfannenstiel incision...
April 2017: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/28280906/kinematics-of-acl-and-anterolateral-ligament-part%C3%A2-ii-anterolateral-and-anterior-cruciate-ligament-reconstruction
#13
T Bonanzinga, Cecilia Signorelli, A Grassi, N Lopomo, M Jain, M Mosca, F Iacono, M Marcacci, F Zaffagnini
PURPOSE: To quantify the influence of Single-Bundle with Lateral Plasty and Double-Bundle reconstruction on static and dynamic laxity in combined ACL- and ALL-deficient knees. METHODS: The study included 10 fresh-frozen human knees. The joints were analyzed in the following conditions: ACL + ALL resection, Single-Bundle with Lateral Plasty (SBLP) reconstruction, Double-Bundle (DB) reconstruction. Testing parameters were: anterior displacement at 30° and 90° of flexion (AP30, AP90) applying a manual maximum load; internal rotation at 30° and 90° of flexion (INT30, INT90) applying a 5 Nm torque and acceleration and internal rotation Pivot-Shift (PS) test...
March 9, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28280738/ultrasound-guided-obturator-nerve-block-a-focused-review-on-anatomy-and-updated-techniques
#14
REVIEW
Takayuki Yoshida, Tatsuo Nakamoto, Takahiko Kamibayashi
This review outlines the anatomy of the obturator nerve and the indications for obturator nerve block (ONB). Ultrasound-guided ONB techniques and unresolved issues regarding these procedures are also discussed. An ONB is performed to prevent thigh adductor jerk during transurethral resection of bladder tumor, provide analgesia for knee surgery, treat hip pain, and improve persistent hip adductor spasticity. Various ultrasound-guided ONB techniques can be used and can be classified according to whether the approach is distal or proximal...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28277590/does-an-anterior-lipped-tibial-insert-adequately-substitute-for-a-post-cam-articulation-in-total-knee-arthroplasty
#15
Rahul K Biyani, Mary Ziemba-Davis, Philip H Ireland, R Michael Meneghini
INTRODUCTION: Newer tibial inserts with enhanced conformity (cruciate stabilizing anterior lip; CS) to obviate the need for a posteriorly stabilized (PS) post-cam articulation in posterior cruciate ligament-deficient knees have been recently introduced in modern total knee arthroplasty (TKA). The purpose of this study was to evaluate whether clinical and functional outcomes differ in TKA cohorts without a posterior cruciate ligament (PCL) utilizing either CS anterior-lipped or PS post-cam articulation...
March 9, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28258383/-new-worldwide-guidelines-for-treatment-of-inguinal-hernia-the-most-important-recommendations-from-herniasurge
#16
D Weyhe
SURGICAL TECHNIQUES: In the HerniaSurge guidelines the highest evidence is found with respect to recommendations for mesh-based surgery techniques. This includes Lichtenstein as well as the minimally invasive TEP/TAPP surgery. For discreet symptomatic or asymptomatic inguinal hernia, watchful waiting is an option if the state of health and social situation are taken into account; however, femoral hernia should be treated promptly with a mesh technique, with laparoendoscopic techniques being the more favored option...
March 3, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28257949/retractorless-surgery-for-third-ventricle-tumor-resection-through-the-transcallosal-approach
#17
Xiang Wang, Yan-Hui Liu, Qing Mao
OBJECTIVE: Resection of tumors of the third ventricle through the transcallosal-interforniceal approach presents a surgical challenge with potential serious postoperative neurological deficits and complications. Retraction injury of the deep brain tissue and veins is a possible reason. Here, we aimed to investigate the feasibility and value of retractorless surgery in third ventricle tumor resection. PATIENTS AND METHODS: Since 2014, a total of 31 patients with third ventricle tumors were operated in our institution...
April 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28256908/assessment-with-cone-beam-computed-tomography-of-intrafractional-motion-and-interfractional-position-changes-of-resectable-and-borderline-resectable-pancreatic-tumors-with-implanted-fiducial-marker
#18
Shingo Ohira, Masaru Isono, Yoshihiro Ueda, Takero Hirata, Reiko Ashida, Hidenori Takahashi, Masayoshi Miyazaki, Masaaki Takashina, Masahiko Koizumi, Teruki Teshima
OBJECTIVES: The volume of targets to which a high radiation dose can be delivered is limited for pancreatic radiotherapy. We assessed changes in movements of pancreatic tumors between simulation and treatment, and determined compensatory margins. METHODS: For 23 patients, differences in implanted fiducial marker motion magnitude (MMM) and mean marker position (MMP) between 4DCT and CBCT were measured. Subsequently, residual uncertainty was simulated after no action level (NAL) and extended NAL (eNAL) protocols were adopted...
March 3, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28249609/analysis-of-inter-and-intra-fractional-partial-bladder-wall-movement-using-implanted-fiducial-markers
#19
REVIEW
Kentaro Nishioka, Shinichi Shimizu, Nobuo Shinohara, Yoichi M Ito, Takashige Abe, Satoru Maruyama, Norio Katoh, Rumiko Kinoshita, Takayuki Hashimoto, Naoki Miyamoto, Rikiya Onimaru, Hiroki Shirato
BACKGROUND: Current adaptive and dose escalating radiotherapy for muscle invasive bladder cancer requires knowledge of both inter-fractional and intra-fractional motion of the bladder wall involved. The purpose of this study is to characterize inter- and intra-fractional movement of the partial bladder wall using implanted fiducial markers and a real-time tumor-tracking radiotherapy system. METHODS: Two hundred fifty one sessions with 29 patients were analysed. After maximal transurethral bladder tumor resection and 40 Gy of whole bladder irradiation, up to six gold markers were implanted transurethrally into the bladder wall around the tumor bed and used for positional registration...
March 1, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28248883/primary-leiomyosarcoma-of-the-spine-a-case-report-and-literature-review
#20
REVIEW
Yi Yang, Litai Ma, Lingli Li, Hao Liu
RATIONALE: Primary leiomyosarcoma of the bone was firstly reported by Evans and Sanerkin in 1965, whereas primary leiomyosarcoma of the vertebra is extremely rare. Because of the rarity of primary vertebral leiomyosarcoma, the diagnosis, treatment, and clinical outcome still remain controversial. Here we report a special case of primary leiomyosarcoma in the thoracic vertebra. PATIENT CONCERNS: A 47-year-old female patient was admitted to our institution with the chief complaint of persistent back pain for 4 weeks...
March 2017: Medicine (Baltimore)
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