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Rotational osteotomy

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https://www.readbyqxmd.com/read/29330745/-treatment-of-rotational-malalignment-of-the-lower-leg
#1
REVIEW
P Keppler
BACKGROUND: Rotational malalignment after intramedullary nailing of tibial shaft fractures is not uncommon. In-toeing and out-toeing conditions in children are often the reason for orthopedic and traumatological medical consultation. OBJECTIVE: Evaluation of diagnostic modalities and therapeutic options for rotational malalignment in relationship to the patient's age. Surgical indications and efficacy of specific surgical techniques. MATERIAL AND METHODS: Systematic literature search in the German Institute for Medical Documentation and Information (DIMDI) and MEDLINE and evaluation of the currently published articles...
January 12, 2018: Der Unfallchirurg
https://www.readbyqxmd.com/read/29325194/comparison-of-rotation-force-to-maintain-acetabular-ventroversion-after-double-pelvic-osteotomy-and-2-5-pelvic-osteotomy-in-a-canine-cadaveric-model
#2
Roberto Tamburro, Massimo Petazzoni, Fabio Carli, Micheal P Kowaleski
OBJECTIVE:  The aim of this article was to compare the force required to maintain the acetabular ventroversion after double pelvic osteotomy (DPO) and modified triple pelvic osteotomy (2.5PO). METHODS:  Unilateral DPO (group A) and unilateral modified DPO (group B = 2.5PO) were performed on cadaveric canine pelves (n = 10/group). The twisting moment required to maintain fragment position for DPO and 2.5DPO was compared. RESULTS:  Mean twisting moment for the DPO group [5...
January 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29325188/comparison-of-radiographic-measurements-of-the-femur-in-yorkshire-terriers-with-and-without-medial-patellar-luxation
#3
Michal Žilinčík, Marián Hluchý, Ladislav Takáč, Valent Ledecký
OBJECTIVE:  This article aimed to compare measurements of anatomical angles of the femurs, based on radiography, in Yorkshire Terriers without or with various grades of medial patellar luxation (MPL) based on radiography. METHODS:  The skeletally mature Yorkshire Terrier dogs without MPL and with various grades of MPL were included in this prospective study. Cases with other orthopaedic disorders were excluded. For inclusion of the dog, it was required that standardized digital radiographs of both femurs in craniocaudal and axial directions were available...
January 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29316952/risk-factor-analysis-for-postoperative-complications-requiring-revision-surgery-after-transtrochanteric-rotational-osteotomy-for-osteonecrosis-of-the-femoral-head
#4
Kazuyuki Karasuyama, Goro Motomura, Satoshi Ikemura, Jun-Ichi Fukushi, Satoshi Hamai, Kazuhiko Sonoda, Yusuke Kubo, Takuaki Yamamoto, Yasuharu Nakashima
BACKGROUND: This study investigated the risk factors for postoperative complications requiring revision surgery within 3 years after transtrochanteric rotational osteotomy (TRO) for osteonecrosis of the femoral head (ONFH). METHODS: We reviewed 127 patients (147 hips) who underwent TRO (anterior or posterior rotational osteotomy) for ONFH between January 2002 and December 2014. Two patients were lost to follow-up, and five patients with progression of femoral head collapse requiring a salvage procedure such as total hip arthroplasty within 3 years after TRO were excluded...
January 10, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29303854/wedge-osteotomy-for-correction-of-chin-asymmetry
#5
Pedro Jorge Cavalcante Costa, Johnny Holanda de Gauw, José Zenou Costa Filho
Chin deviation is generally the visible reflex of a mandibular asymmetry. The difficulty in obtaining a symmetrical result exists, but it can be minimized with the appropriate surgical technique. This article reports the mentoplasty technique with wedge osteotomy performed in an individual with a right-sided chin deviation. Three osteotomies were performed vertically and equidistantly, forming a bone wedge on the contralateral side of the deviation. Horizontal repositioning associated with the rotation caused by the vertical impaction of the chin after bone wedge removal was effective in solving esthetic problems of facial asymmetry, meeting the patient's main complaint...
January 4, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29303120/management-of-cleft-lip-and-palate-in-nigeria-a-survey
#6
V Akinmoladun, S Ademola, A Olusanya
BACKGROUND: Clefts of the lip and/or palate are the most common congenital craniofacial defects and second only to club foot among all congenital anomalies. The management of this condition is resource intensive due to the multidimensional needs. This survey was carried out to ascertain the current state of cleft management in Nigeria with emphasis on training, scope of management, and assessment of treatment outcome. MATERIALS AND METHODS: Structured questionnaires were administered to cleft surgeons based on professional and practitioners' register and the result of literature search for cleft surgeons whose names may not appear in the registers...
November 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29290050/osteotomies-in-ankylosing-spondylitis-where-how-many-and-how-much
#7
REVIEW
H Koller, M Mayer, A Hempfing, J Koller
INTRODUCTION: This article presents the current concepts of correction of spinal deformity in ankylosing spondylitis (AS) patients. Untreated AS can be a debilitating disease. In a few patients, disease progression results in severe spinal deformity affecting not only the thoracolumbar, but also the cervical spine. Surgery for correction in AS patients has a long history. With the advent of modern instrumentation, standardization of surgical and anesthesiologic techniques, surgical safety and corrective results could be improved and experiences from lumbar osteotomies could be transferred to the cervical spine...
December 30, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29287812/the-true-ponte-osteotomy-by-the-one-who-developed-it
#8
Alberto Ponte, Giuseppe Orlando, Gian Luigi Siccardi
STUDY DESIGN: Technique and applications. OBJECTIVES: To define the anatomy, biomechanics, indications, and surgical technique of the true Ponte osteotomy. SUMMARY OF BACKGROUND DATA: The Ponte osteotomy, originally developed for thoracic kyphosis, was the first one to obtain posterior shortening of the thoracic spine, maintaining the anterior column load-sharing capacity. It has become a widely applied technique in various types of spine deformities and a frequent topic of presentations at meetings and in scientific articles...
January 2018: Spine Deformity
https://www.readbyqxmd.com/read/29284442/how-to-avoid-unintended-valgus-alignment-in-distal-femoral-derotational-osteotomy-for-treatment-of-femoral-torsional-malalignment-a-concept-study
#9
Florian B Imhoff, Bastian Scheiderer, Philip Zakko, Elifho Obopilwe, Franz Liska, Andreas B Imhoff, Augustus D Mazzocca, Robert A Arciero, Knut Beitzel
BACKGROUND: Defining the optimal cutting plane for derotational osteotomy at the distal femur for correction of torsion in cases of patellofemoral instability is still challenging. This preliminary study investigates changes of frontal alignment by a simplified trigonometrical model and demonstrates a surgical guidance technique with the use of femur cadavers. The hypothesis was that regardless of midshaft bowing, a cutting plane perpendicular to the virtual anatomic shaft axis avoids unintended valgus malalignment due to derotation...
December 29, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29234863/gait-analysis-in-short-term-follow-up-of-medial-opening-wedge-high-tibial-osteotomy
#10
Hésojy Gley Pereira Vital da Silva, Alessandro Rozim Zorzi, Heglayne Pereira Vital da Silva, João Batista de Miranda
BACKGROUND: Biomechanical gait changes are proposed as adaptations to medial knee osteoarthritis (OA), and little is known about which parameters can be modified early by high tibial osteotomy (HTO) surgery. The aim of this study was to identify early gait changes in a postoperative period of 6 months as compared to a control group, in three different spatial planes. METHODS: Twenty-one patients with OA were submitted to three-dimensional gait analysis preoperatively and 6 months after HTO surgery...
December 12, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29223630/postoperative-loss-of-midline-function-in-brachial-plexus-birth-palsy
#11
Dustin A Greenhill, Arianna Trionfo, Frederick V Ramsey, Scott H Kozin, Dan A Zlotolow
PURPOSE: To identify the rate of and predictive variables for functionally limited shoulder internal rotation in postoperative patients with brachial plexus birth palsy. METHODS: Records of patients with brachial plexus birth palsy who had surgery on the affected upper extremity during a 10-year period were retrospectively reviewed. Patient demographics, physical examinations, and all upper extremity procedures were recorded. Loss of midline function (LOM) was defined as a Modified Mallet Scale or Active Movement Scale (AMS) internal rotation score <3...
December 6, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29216705/-functional-results-of-open-wedge-osteotomies-in-lower-limb-angular-deformities-in-teenagers
#12
C Orellana-Reta, L A Valdez-Jiménez
OBJECTIVE: The aim of this study was to evaluate the functional and radiographic results of adolescent patients with angular deformities of the pelvic limbs treated with an open wedge osteotomy system. MATERIAL AND METHODS: Observational, prospective, analytical and cross-sectional study of patients with angular deformity of the pelvic limbs treated with an open wedge osteotomy. We made a radiographic evaluation of the femorotibial angle, MAD angle, lower limb discrepancy, and pre- and postoperative degrees of the rotational center of deformity (CORA), as well as a telephone survey of the postoperative functional evaluation IKDC 2000...
May 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29201306/analysis-of-radiographic-parameters-of-the-forearm-in-traumatic-radial-head-dislocation
#13
Hui Taek Kim, Le Viet Can, Tae Young Ahn, In Hee Kim
Background: Various deformities can occur in the forearm bones when the traumatically dislocated radial head is untreated for a long period. Without correction of all deformities, reduction of the dislocated radial head is difficult to maintain, and forearm and elbow motion will deteriorate after reduction. We evaluated radiographic parameters of forearms with traumatically dislocated radial heads (and of the normal sides) to understand the resulting deformities and the effectiveness of surgical treatment...
December 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/29201204/a-rabbit-model-of-implant-related-osteomyelitis-inoculated-with-biofilm-after-open-femoral-fracture
#14
Xiang Zhang, Yun-Fei Ma, Lei Wang, Nan Jiang, Cheng-He Qin, Yan-Jun Hu, Bin Yu
Currently, animal models used in research on implant-associated osteomyelitis primarily use intramedullary fixation and initial inoculum of planktonic bacterial cells. However, these techniques have certain limitations, including lack of rotational stability and instable inoculation. To improve these models, the present study aimed to establish a novel rabbit model of implant-associated osteomyelitis using biofilm as the initial inoculum following plate fixation of the femoral fracture. A total of 24 New Zealand White rabbits were randomly divided into two equal groups...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29186600/an-in-vitro-biomechanical-model-of-differing-pedicle-screw-configurations-for-long-construct-segmental-thoracic-fixation
#15
Alexander Tuchman, Alexander W L Turner, Melodie F Metzger, Frank L Acosta
BACKGROUND: The optimum pattern of pedicle screw (PS) fixation during long-segment thoracic fixation has not been determined. OBJECTIVE: To evaluate rod stress and construct stability with minimal, alternating, skipped, and bilateral PS constructs in the iatrogenically destabilized thoracic spine. METHODS: Eight cadaveric thoracic specimens (T3-T12) were initially tested intact to ±5 Nm using a custom 6 degree-of-freedom spine testing apparatus in flexion-extension (FE), lateral bending (LB), and axial rotation...
December 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29181344/successful-two-step-correction-for-severe-genu-valgum-in-ellis-van-creveld-syndrome-a-case-report
#16
Tomomi Kamada, Naohiko Mashima, Hiroshi Imai, Jun Takeba, Hiromasa Miura
Introduction: Ellis-van Creveld syndrome (EVC) is a very rare genetic disorder involving a severe, relentlessly progressive genu valgum deformity of the knee and it is usually difficult to correct all of the deformities by elevation of the depressed lateral tibial plateau alone. We are reporting one such case treated using two-step operative technique (first, gradual correction using Taylor spatial frame (TSF) and second, tibia elevation through intra-articular osteotomy). Case Report: We report a case of 10-year-old female with severe genu valgum in EVC using two-step operative technique...
July 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29167068/three-dimensional-morphology-of-lunate-surface-in-hip-dysplasia-theoretical-implications-for-periacetabular-osteotomy
#17
Meng Xu, Yanbing Wang, Lei Zhong, Yang Song, Jianlin Xiao, Yu Sun, Wei Li, Zhe Zhu, Xin Zhao, Jincheng Wang
BACKGROUND: The objective of this study was to evaluate three-dimensional morphology of acetabular lunate surface in patients with dysplastic hip using three-dimensional computed tomography (CT), and to compare the lunate surface morphology between the normal and dysplastic hips. METHODS: Sixty seven dysplastic hips in symptomatic patients and 61 normal hips in healthy volunteers who underwent three-dimensional CT scanning were included in this study. The size and shape of the lunate surface was measured with a fully automated imaging technique using Mimics16...
November 19, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29146395/correlation-between-intraoperative-proximal-segment-rotation-and-post-sagittal-split-ramus-osteotomy-relapse-a-three-dimensional-cone-beam-computed-tomography-study
#18
B-J Choi, B-S Lee, Y-D Kwon, J-W Lee, S-U Yun, K-S Ryu, J-Y Ohe
This study evaluated the effects of proximal segment rotation and the extent of mandibular setback on post-sagittal split ramus osteotomy (SSRO) relapse using three-dimensional (3D) analysis. Thirty-one patients diagnosed with a skeletal class III malocclusion who underwent SSRO alone were enrolled in this study. The movements of the mandibular condyles were assessed using cone beam computed tomography (CBCT) and a 3D imaging program at ≤1 month before the operation (T0), 1 week after the operation (T1), and 6 months (T2) and 1year (T3) postoperative...
November 13, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29117834/open-wedge-osteotomy-with-ulnar-shortening-for-madelung-deformity-using-a-computer-generated-template
#19
Sho Yanagisawa, Takehiko Takagi, Tsuyoshi Murase, Yuka Kobayashi, Masahiko Watanabe
A variety of osteotomies have been reported to correct Madelung deformity using plain radiographs. However, evaluation of the deformity using 2-dimensional plain radiography is difficult because of its complex 3-dimensional nature. Therefore, we performed corrective osteotomy using recently developed 3D simulation technology on an adult woman with Madelung deformity, and achieved an excellent outcome. In this study, we calculated the amount of parallel displacement as well as the rotational angle for more precise correction, and performed open wedge osteotomy...
December 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29100001/effects-of-anterior-closing-wedge-tibial-osteotomy-on-anterior-cruciate-ligament-force-and-knee-kinematics
#20
Kent T Yamaguchi, Edward C Cheung, Keith L Markolf, Daniel V Boguszewski, Justin Mathew, Christopher J Lama, David R McAllister, Frank A Petrigliano
BACKGROUND: A certain percentage of patients undergoing anterior cruciate ligament (ACL) reconstruction will experience graft failure, and there is mounting evidence that an increased posterior tibial slope (PTS) may be a predisposing factor. Theoretically, under tibiofemoral compression force (TFC), a reduced PTS would induce less anterior tibial translation (ATT) and lower ACL force. HYPOTHESIS: Ten-degree anterior closing wedge osteotomy of the proximal tibia will significantly reduce ACL force and alter knee kinematics during robotic testing...
November 1, 2017: American Journal of Sports Medicine
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