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glenoid osteotomy

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https://www.readbyqxmd.com/read/29589501/glenoid-osteotomy-for-atraumatic-posteroinferior-shoulder-instability-associated-with-glenoid-dysplasia
#1
H Inui, K Nobuhara
Aims We report the clinical results of glenoid osteotomy in patients with atraumatic posteroinferior instability associated with glenoid dysplasia. Patients and Methods The study reports results in 211 patients (249 shoulders) with atraumatic posteroinferior instability. The patients comprised 63 men and 148 women with a mean age of 20 years. The posteroinferior glenoid surface was elevated by osteotomy at the scapular neck. A body spica was applied to maintain the arm perpendicular to the glenoid for two weeks postoperatively...
March 1, 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29531936/novel-condylar-repositioning-method-for-3d-printed-models
#2
Keisuke Sugahara, Yoshiharu Katsumi, Masahide Koyachi, Yu Koyama, Satoru Matsunaga, Kento Odaka, Shinichi Abe, Masayuki Takano, Akira Katakura
Background: Along with the advances in technology of three-dimensional (3D) printer, it became a possible to make more precise patient-specific 3D model in the various fields including oral and maxillofacial surgery. When creating 3D models of the mandible and maxilla, it is easier to make a single unit with a fused temporomandibular joint, though this results in poor operability of the model. However, while models created with a separate mandible and maxilla have operability, it can be difficult to fully restore the position of the condylar after simulation...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29399445/arthroscopic-lateral-border-resection-in-medialized-scapula-neck-fractures
#3
Valentin Rausch, Matthias Königshausen, Thomas A Schildhauer, Dominik Seybold, Jan Gessmann
Scapula neck fractures are rare injuries, leaving several treatment options. Standardized markers for operative treatment are a decreased glenopolar angle ≤22°, lateral border offset (LBO) of the glenoid ≥20 mm, angular deformity ≥45°, or LBO ≥15 mm plus angular deformity ≥35°. If operative treatment is not performed before union, the fracture heals malaligned with possible mechanical complications due to a medialized glenoid and the protruding lateral border. Common operative treatment comprises a corrective osteotomy for the anatomic correction of the malunited fracture, leaving intra-articular pathologies like adhesive capsular stiffness unaddressed...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29396694/feasibility-of-using-an-inversion-recovery-ultrashort-echo-time-ute-sequence-for-quantification-of-glenoid-bone-loss
#4
Ya-Jun Ma, Justin West, Amin Nazaran, Xin Cheng, Heinz Hoenecke, Jiang Du, Eric Y Chang
OBJECTIVE: To utilize the 3D inversion recovery prepared ultrashort echo time with cones readout (IR-UTE-Cones) MRI technique for direct imaging of lamellar bone with comparison to the gold standard of computed tomography (CT). MATERIALS AND METHODS: CT and MRI was performed on 11 shoulder specimens and three patients. Five specimens had imaging performed before and after glenoid fracture (osteotomy). 2D and 3D volume-rendered CT images were reconstructed and conventional T1-weighted and 3D IR-UTE-Cones MRI techniques were performed...
February 2, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29396101/outcomes-of-lesser-tuberosity-osteotomy-in-revision-anatomic-shoulder-arthroplasty
#5
Cesar D Lopez, Stephen P Maier, Zachary J Bloom, Brian B Shiu, Djuro Petkovic, Charles M Jobin
BACKGROUND: Lesser tuberosity osteotomy (LTO) is a common surgical approach during anatomic shoulder arthroplasty. Outcomes of LTO have been shown to be similar to subscapularis tenotomy and peel techniques, but little is known about the outcomes of LTO during revision arthroplasty. METHODS: This retrospective case series included 10 consecutive patients who underwent LTO during revision shoulder arthroplasty at a single institution from 2012 to 2016. Patients underwent a preoperative computed tomography scan to evaluate the lesser tuberosity bone stock...
January 29, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29381624/usefulness-of-early-plate-removal-in-patients-with-occlusal-discrepancies-after-sagittal-split-ramus-osteotomy
#6
Yoko Kawase-Koga, Yasuyuki Fujii, Mikiko Ikehata, Naoki Ikehata, Michihide Kono, Akira Kimoto, Masato Watanabe, Daichi Chikazu
The aim of this study was to evaluate the effects of early removal of fixed plates in patients with occlusal discrepancies after sagittal split ramus osteotomy (SSRO) with a focus on the positional relationship of the temporomandibular joint (TMJ). Sagittal split ramus osteotomy with/without Le Fort I osteotomy was performed on 98 patients with mandibular prognathism. Of these 98 patients, 15 with occlusal discrepancies and/or TMJ symptoms underwent early plate removal after SSRO. Finally, 12 consecutive patients were evaluated in this study: 7 underwent bilateral SSRO, 1 underwent unilateral SSRO, and 4 underwent bilateral SSRO with maxillary advancement...
January 19, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29246239/individualized-coracoid-osteotomy-and-3d-congruent-arc-reconstruction-of-glenoid-for-the-treatment-of-recurrent-anterior-shoulder-dislocation
#7
Hongxin Zhang, Jicheng Gong, Meiming Xie, Kanglai Tang
BACKGROUND: The present study investigated individualized coracoid osteotomy for 3D congruent arc glenoid reconstruction and evaluated the clinical outcomes in recurrent anterior shoulder dislocation. METHODS: From January 2005 to July 2015, 78 patients with glenoid defect underwent coracoid and conjoint tendon transposition. The patients were divided into the individualized group (n = 34) and the non-individualized group (n = 44). All patients had CT data to reconstruct the shoulder model using Mimics software...
December 15, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28979604/management-of-humeral-defects-in-anterior-shoulder-instability
#8
Maria Valencia Mora, Miguel Ángel Ruiz-Ibán, Jorge Diaz Heredia, Raquel Ruiz Díaz, Ricardo Cuéllar
BACKGROUND: A Hill Sachs lesion is a posterior-superior bony defect of the humeral head caused by a compression of the hard glenoid rim against the soft cancellous bone in the context of an anterior instability episode. The presence of these humeral defects increases with the number of dislocations and larger lesions are associated with a greater chance of development of recurrent instability and recurrence after surgery. Also its location and pattern, in particular the so-called engaging Hill-Sachs, are associated with poor prognosis...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28979596/treatment-of-the-posterior-unstable-shoulder
#9
Eduardo Sánchez Alepuz, Jaime Alonso Pérez-Barquero, Nadia Jover Jorge, Francisco Lucas García, Vicente Carratalá Baixauli
BACKGROUND: It is estimated that approximately 5% of glenohumeral instabilities are posterior. There are a number of controversies regarding therapeutic approaches for these patients. METHODS: We analyse the main surgery alternatives for the treatment of the posterior shoulder instability. We did a research of the publications related with posterior glenohumeral instability. RESULTS: There are conservative and surgical treatment options. Conservative treatment has positive results in most patients, with around 65 to 80% of cases showing recurrent posterior dislocation...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28663018/intraoral-vertico-sagittal-ramus-osteotomy-modification-of-the-l-shaped-osteotomy
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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...
January 2018: 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
#18
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
#19
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
#20
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
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