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https://www.readbyqxmd.com/read/28663018/intraoral-vertico-sagittal-ramus-osteotomy-modification-of-the-l-shaped-osteotomy
#1
J Iwanaga, S Kikuta, M Nakamura, A Koba, K Ogata, S Toyofuku, R S Tubbs, J Kusukawa
The sagittal split ramus osteotomy and intraoral vertical ramus osteotomy carry the potential risk of postoperative nerve paralysis, bleeding, and fracture and dislocation of the condyle. In 1992, Choung first described the intraoral vertico-sagittal ramus osteotomy for the purpose of avoiding postoperative dislocation of the condyle. However, there is still potential for damaging the inferior alveolar nerve and maxillary artery with this technique. The authors have developed a modified technique to minimize these risks...
June 26, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28331927/bilateral-shoulder-arthrodesis-in-a-pekinese-using-three-dimensional-printed-patient-specific-osteotomy-and-reduction-guides
#2
Bill Oxley
OBJECTIVE: To report the use of computer-aided design software for virtual surgical planning and design of three-dimensional printed patient-specific osteotomy and reduction guides for facilitation of bilateral shoulder arthrodesis in a dog. METHODS: A three-year-old male entire Pekinese was presented unable to walk due to bilateral severe medial shoulder instability. Computed tomographic data was processed to yield three-dimensional mesh representations of the humeri and scapulae which could be manipulated in computer-aided design software...
May 22, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28162883/posterior-open-wedge-osteotomy-of-the-scapula-neck-for-the-treatment-of-advanced-shoulder-osteoarthritis-with-posterior-head-migration-in-young-patients
#3
Reinhold Ortmaier, Philipp Moroder, Corinna Hirzinger, Herbert Resch
BACKGROUND: Treatment of young, active patients with symptomatic glenohumeral osteoarthritis, excessive glenoid retroversion, and static posterior humeral subluxation is challenging. Correction of glenoid retroversion may lead to centric loading and perhaps recenter the humeral head. We describe the functional and radiologic outcomes after corrective osteotomy of the glenoid in this population of patients. MATERIALS AND METHODS: In this retrospective study, we included 10 shoulders (8 patients) that were observed for a mean of 33...
February 2, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28050992/dautrey-s-procedure-revisited-in-management-of-recurrent-mandibular-dislocation
#4
Joanna Baptist, Mohan Baliga
Mandibular dislocation occurs when the condylar head glides out of the glenoid fossa with the condyle positioned in such a way that its posterior articulating surface lying ahead of the articular eminence. Recurrent mandibular dislocation is relatively uncommon. Patient is extremely distressed and goes through a lot of discomfort. Varied etiologies have been cited in the literature, such as keeping the mouth wide open for long periods of time during dental procedures, yawning, laughing, traumatic injuries to the mandible, psychiatric disturbances, and certain drugs...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28043316/treatment-of-shoulder-dislocation-with-greater-tuberosity-and-glenoid-fractures
#5
Shah Jehan, Najeeb Mohammad Akhi Baig, Jacob Der Tavitian
Large glenoid fractures are relatively uncommon with shoulder dislocation. Simultaneous glenoid and greater tuberosity fractures with anterior shoulder dislocation are very rare. We report on a 48-year right-handed male who sustained a fall during skiing. He had anterior shoulder dislocation combined with large glenoid fracture and greater tuberosity fracture. He was treated surgically with fixation of the glenoid and greater tuberosity fractures, using two different approaches. The deltopectoral approach with coracoid osteotomy and subscapularis split was used for glenoid fixation...
December 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27942547/evaluation-of-condylar-position-after-orthognathic-surgery-for-treatment-of-class-ii-vertical-maxillary-excess-and-mandibular-deficiency-by-using-cone-beam-computed-tomography
#6
Reza Tabrizi, Shoaleh Shahidi, Emad Bahramnejad, Hamidreza Arabion
STATEMENT OF THE PROBLEM: In orthognathic surgeries, proper condylar position is one of the most important factors in postoperative stability. Knowing the condylar movement after orthognathic surgery can help preventing postoperative instabilities. PURPOSE: The aim of this study was to evaluate the condylar positional changes after Le Fort I maxillary superior repositioning along with mandibular advancement by using cone beam computed tomography (CBCT). MATERIALS AND METHOD: This cross-sectional study was conducted on 22 subjects who had class II skeletal malocclusion along with vertical maxillary excess...
December 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27926680/humeral-retroversion-in-children-with-shoulder-internal-rotation-contractures-secondary-to-upper-trunk-neonatal-brachial-plexus-palsy
#7
Michael L Pearl, Michael Batech, Fabian van de Bunt
BACKGROUND: The most common sequela of neonatal brachial plexus palsy is an internal rotation contracture of the shoulder that impairs function and leads to skeletal deformation of the glenohumeral joint. Treatment options include release, transfers, and humeral osteotomy, all ultimately striving for better function through increased external rotation. Prior studies have shown that neonatal brachial plexus palsy alters humeral retroversion but with conflicting findings. We studied retroversion in children with internal rotation contractures from neonatal brachial plexus palsy to clarify its effect on version and surgical planning...
December 7, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27671285/estimation-of-anterior-glenoid-bone-loss-area-using-the-ratio-of-bone-defect-length-to-the-distance-from-posterior-glenoid-rim-to-the-centre-of-the-glenoid
#8
Sang-Jin Shin, Bong Jae Jun, Young Won Koh, Michelle H McGarry, Thay Q Lee
PURPOSE: Estimation of anterior glenoid bone loss is important for surgical decision-making. The purpose of this study was to describe a method for estimating anterior glenoid bone loss. METHODS: Thirty-nine cadaveric glenoids were digitized to obtain glenoid geometry. Glenoid bare spot centre, arthroscopic centre, and centre of the inferior glenoid circle relative to the geometric centre were measured. To simulate anterior glenoid bone loss, imaginary sequential osteotomies were created 0°, 22...
September 26, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27587522/what-is-a-bristow-latarjet-procedure-a-review-of-the-described-operative-techniques-and-outcomes
#9
REVIEW
P D Cowling, M A Akhtar, R Y L Liow
OBJECTIVES: A variety of operative techniques have been described as under the term 'Bristow-Latarjet' procedure. This review aims to define the original procedure, and compare the variation in techniques described in the literature, assessing any effect on clinical outcomes. MATERIALS AND METHODS: A systematic review of 24 studies was performed to compare specific steps of the technique (coracoid osteotomy site, subscapularis approach, orientation and position of coracoid graft fixation and fixation method, additional labral and capsular repair) and detect any effect this variability had on outcomes...
September 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27529733/sequential-changes-of-postoperative-condylar-position-in-patients-with-facial-asymmetry
#10
Svetlana Tyan, Hyun-Hye Kim, Ki-Ho Park, Su-Jung Kim, Kyung-A Kim, Hyo-Won Ahn
OBJECTIVE: To evaluate sequential images of the condylar position in relation to the glenoid fossa after orthognathic surgery in patients with facial asymmetry using cone beam computed tomography. MATERIALS AND METHODS: A total of 20 adult patients (11 men and 9 women; mean age, 22.1 ± 4.02 years) with facial asymmetry who underwent sagittal split ramus osteotomy with rigid fixation were involved. Cone beam computed tomography scans were obtained before treatment (T0), 1 month before the surgery (T1), and 1 day (T2), 3 months (T3), 6 months (T4), and 12 months (T5) after the surgery...
March 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/27408471/a-conservative-surgical-approach-in-the-management-of-longstanding-chronic-protracted-temporomandibular-joint-dislocation-a-case-report-and-review-of-literature
#11
Priya Jeyaraj, Ashish Chakranarayan
Chronic protracted dislocation of the TMJ is a relatively uncommon but extremely unpleasant and distressing condition for a patient. It is also particularly challenging and difficult to treat as it worsens with time due to continuing spasm of the masticatory muscles and progressive fibrosis, adhesions and consolidation in and around the dislocated joint. No definite guidelines or treatment protocols have been laid down in literature till date, towards management of such dislocations. A range of extensive and invasive surgical procedures such as eminectomy, condylectomy, menisectomy, and various osteotomies of the mandibular ramus and body have been performed to reduce these dislocations...
July 2016: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/27406043/-the-mini-open-latarjet-procedure-for-treatment-of-recurrent-anterior-instability-of-the-shoulder
#12
J Pogorzelski, K Beitzel, A B Imhoff, S Braun
OBJECTIVE: Shoulder stabilization. INDICATIONS: Symptomatic recurrent anterior shoulder instability combined with glenoid bone loss of approximately 20-35 % of the glenoid surface, engaging Hill-Sachs lesion and/or previously failed arthroscopic Bankart repair. In patients with a high risk of redislocation (contact sports) or irreparable soft tissue injury the Latarjet procedure can be considered as a first-line treatment. CONTRAINDICATIONS: Contraindicated if arthroscopic Bankart repair is possible...
December 2016: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/27357960/-open-wedge-osteotomy-of-the-glenoid-for-treatment-of-posterior-shoulder-instability-with-increased-glenoid-retroversion
#13
J Pogorzelski, S Braun, A B Imhoff, K Beitzel
OBJECTIVE: Treatment of posterior shoulder instability with increased retroversion of the glenoid using open-wedge osteotomy of the glenoid neck stabilized with an autologous bone block. INDICATIONS: Symptomatic, atraumatic posterior shoulder instability with increased retroversion (>20°) of the glenoid and previously failed conservative or surgical treatment. CONTRAINDICATIONS: General contraindications against surgery. Relative contraindications: osteoporosis, nicotine abuse, or suspected patient noncompliance...
December 2016: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/27252441/glenoid-dysplasia-pathophysiology-diagnosis-and-management
#14
REVIEW
Josef K Eichinger, Joseph W Galvin, Jason A Grassbaugh, Stephen A Parada, Xinning Li
➤Subtle forms of glenoid dysplasia may be more common than previously thought and likely predispose some patients to symptomatic posterior shoulder instability. Severe glenoid dysplasia is a rare condition with characteristic radiographic findings involving the posteroinferior aspect of the glenoid that often remains asymptomatic.➤Instability symptoms related to glenoid dysplasia may develop over time with increased activities or trauma. Physical therapy focusing on rotator cuff strengthening and proprioceptive control should be the initial management...
June 1, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27050098/high-oblique-sagittal-split-osteotomy-of-the-mandible-assessment-of-the-positions-of-the-mandibular-condyles-after-orthognathic-surgery-based-on-cone-beam-tomography
#15
R Kuehle, M Berger, D Saure, J Hoffmann, R Seeberger
High oblique sagittal split osteotomy is an orthognathic technique to move the mandible. Our aim was to evaluate changes in the position of the condyle in the glenoid fossa and its angulation before and after high oblique sagittal split osteotomy (HSSO). Fifty patients (32 women and 18 men, mean age 26.3 (SD 7.4) years) had cone-beam computed tomographyic (CT) scans before operation, immediately postoperatively, and before removal of the osteosynthesis nine months postoperatively. The images were analysed to look for changes in the sagittal, coronal, and axial positions of the condyles...
July 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/26952173/the-acromiohumeral-distance-and-the-subacromial-clearance-are-correlated-to-the-glenoid-version
#16
M J Scheyerer, F E Brunner, C Gerber
BACKGROUND: The acromiohumeral distance (ACHD) is a radiographic parameter for evaluating the presence of a rotator cuff rupture. Previous investigations have demonstrated that several factors may influence the magnitude of the acromiohumeral distance, but glenoid version has not yet been considered. HYPOTHESIS: Our hypothesis was that there is a direct correlation between glenoid version and acromiohumeral distance as well as subacromial clearance. METHODS: Four right glenohumeral joints from adult fresh cadavers were anatomically dissected to the level of the rotator cuff...
May 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/26949138/revision-shoulder-arthroplasty-from-resurfacing-to-non-cemented-short-stem-reverse-prosthesis
#17
L Natera, J Bruguera, E Atoun, O Levy
OBJECTIVE: To assess the surgical parameters and the clinical and radiological outcomes of revisions of resurfacing shoulder arthroplasty to non-cemented short-stem reverse total shoulder arthroplasty. MATERIAL AND METHODS: A total of 23 revisions from resurfacing shoulder arthroplasty to reverse total shoulder arthroplasty were performed. The mean age was 70.3±11.95 years. The patients included 82.6% (19/23) revised for cuff failure; 13.04% (3/23) cuff failure and aseptic loosening, and 4...
May 2016: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/26474625/-effect-of-segmental-le-fort-i-osteotomy-and-bilateral-sagittal-split-ramus-osteotomy-on-the-condyle-position-in-skeletal-class-iii-malocclusion-patients
#18
Wei He, Xiao-yan Xie, Xing Wang, Xiao-xia Wang, Kai-yuan Fu, Zi-li Li
OBJECTIVE: To investigate the effect of segmental Le Fort I osteotomy and bilateral sagittal split ramus osteotomy (BSSRO) on the condyle position in skeletal class III malocclusion patients. METHODS: In this retrospective study, 19 patients with skeletal class III malocclusion who met the inclusion criteria were enrolled. All the patients underwent the segmental Le Fort I osteotomy and BSSRO. Cone beam computed tomography (CBCT) scans were performed in the following phases: T1: within one week before the surgeries; T2: within one week post-surgery;T3:three months post-surgery; T4: 6 to 14 months post-surgery...
October 18, 2015: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/26297423/application-of-fossa-bone-graft-to-stabilize-stock-total-joint-prosthesis-in-temporomandibular-joint-surgery
#19
Guo Bai, Chi Yang, Dongmei He, Xiaohu Zhang, Ahmed Abdelrehem
PURPOSE: To describe a new glenoid fossa bone graft technique, and to evaluate its effect on the stability of stock fossa prosthesis implantation in total alloplastic joint replacement surgery. METHODS: Eight patients who underwent total joint replacement surgery with a Biomet stock prosthesis (Biomet, Warsaw, IN, USA) from November 2013 to April 2014 were included in this study. ProPlan CMF 1.4 software (Materialise NV, Leuven, Belgium) was used to choose the prosthesis size and place it in the right position...
October 2015: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/26225031/total-alloplastic-temporomandibular-joint-reconstruction-for-management-of-tmj-ankylosis
#20
R S Neelakandan, A V Dharmesh Kumar Raja, Arun M Krishnan
INTRODUCTION: Temporomandibular joint (TMJ) ankylosis involves the fusion of the mandibular condyle to the glenoid fossa, the skull base. The dilemma with regards to treatment planning whether distraction is done before gap arthroplasty or as a simultaneous procedure or after gap arthroplasty is still a controversy. In an attempt to carry out both the procedures simultaneously there is loss of vector control of the distal segment and the risk of pseudoarthrosis at the osteotomy site. This combined problem could be overcome by the use of total alloplastic joint prosthesis which offers a firm posterior stop for the proximal segment and negates aggressive physiotherapy...
December 2014: Journal of Maxillofacial and Oral Surgery
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