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Rotational osteotomy

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https://www.readbyqxmd.com/read/29785313/management-of-an-infected-nonunion-of-an-opening-wedge-high-tibial-osteotomy-with-2-stage-implantation-of-rotating-hinge-knee-prosthesis
#1
Sandrine Mariaux, Olivier Borens
Introduction: High tibial osteotomy (HTO) is a frequent and effective treatment for unicompartmental gonarthritis. Only a few articles are focused on the treatment of infected nonunion. Patient and Method: A 50-year-old obese patient was operated on by medial opening-wedge HTO. She developed a painful nonunion treated by hardware removal, allograft, and plate fixation. However, the nonunion persisted. 2 years later, cellulitis appeared with an abscess adjacent to the HTO plate...
2018: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29776719/three-dimensional-changes-of-proximal-segments-in-facial-asymmetry-patients-after-bilateral-vertical-ramus-osteotomy
#2
J W Huh, S Y Kim, Y-B Lee, J H Park, H-D Jung, Y-S Jung
The intraoral vertical ramus osteotomy (IVRO) is a useful technique for mandibular setback surgery. However, there is a tendency for lateral flaring of the proximal segments on the non-deviation side after the correction of mandibular asymmetry with this technique. The purpose of this retrospective study was to evaluate the positional changes of the proximal segments after IVRO setback in skeletal class III patients with asymmetry, using preoperative and postoperative computed tomography scan data, and to apply the results in clinical practice...
May 15, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29772992/rotational-deformity-of-the-first-ray-precludes-accurate-distal-metatarsal-articular-angle-measurement-in-hallux-valgus
#3
David B Frumberg, Qais Naziri, Robert Pivec, Lee Bloom, Barbara Freeman, Jaime A Uribe
The routine workup of hallux valgus includes measurements of the distal metatarsal articular angle (DMAA). However, this angle may not be a reliable measurement when rotational deformities occur. Eight matched cadaveric feet were evaluated radiographically using fluoroscopy. The intermetatarsal angle (IMA), hallux valgus angle, and DMAA were evaluated as a baseline. Then, we assessed whether axial rotation of 15°, 30°, 45°, and 60° affected the accuracy of the IMA and the DMAA significantly. Statistical evaluation was performed using Student's t tests and analysis of variance...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29759883/minimally-invasive-plate-osteosynthesis-for-tibial-derotation-osteotomies-in-children-with-cerebral-palsy
#4
Ilker Abdullah Sarikaya, Ali Seker, Ozan Ali Erdal, Mehmet Ali Talmac, Muharrem Inan
OBJECTIVE: Tibial derotation osteotomy can be used in the treatment of rotational deformities in case of ineffective conservative management. Our aim was to evaluate the results of the patients who underwent minimal invasive plate osteosynthesis for tibial derotation osteotomies. METHODS: Total of 16 patients (17 procedures) were included in this study. Mean age was 11.5 (3-25) years. We clinically assessed the tibial torsion by measuring the thigh-foot angle (TFA)...
May 11, 2018: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29755240/comparison-of-thermal-spread-with-the-use-of-an-ultrasonic-osteotomy-device-sonopet-ultrasonic-aspirator-versus-misonix-bonescalpel-in-spinal-surgery
#5
Nadim Tarazi, Sudarshan Munigangaiah, Mutaz Jadaan, John P McCabe
Background: The development of high speed rotating burrs has greatly advanced spinal surgery in recent years. However, they produce unwanted frictional heat and temperature elevation during the burring process. We compare the misonix bone scalpel (MBS) and the Sonopet ultrasonic aspirator to assess which would be the safer device in terms of the risk of thermal injury following laminectomy. Methods: We describe an experimental nonrandomized study comparing two ultrasonic osteotomy devices...
January 2018: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29741560/combined-nasal-osteotomies-with-caudal-transverse-osteotomy-and-their-effect-on-dorsal-geometry
#6
Ersoy Konas, Ozan Bitik
Background: Congenital, traumatic, or developmental bony vault deformities may require additional interventions rather than classical osteotomies to correct the surface structure or angulations of the nasal bones in rhinoplasty. Objectives: The aim of the study was to determine the effects of the additional osteotomies applied for the correction of the nasal vault asymmetries retrospectively. Methods: Twenty-one patients among 512 primary rhinoplasty cases between 2011-2016 with bony vault asymmetries were included into the study...
May 8, 2018: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29740675/biomechanical-advantages-of-supplemental-accessory-and-satellite-rods-with-and-without-interbody-cages-implantation-for-the-stabilization-of-pedicle-subtraction-osteotomy
#7
Luigi La Barbera, Marco Brayda-Bruno, Christian Liebsch, Tomaso Villa, Andrea Luca, Fabio Galbusera, Hans-Joachim Wilke
PURPOSE: To investigate the effect of anterior interbody cages, accessory and satellite rods usage on primary stability and rod strains for PSO stabilization. METHODS: Seven human cadaveric spine segments (T12-S1) underwent PSO at L4 with posterior fixation from L2 to S1. In vitro flexibility tests were performed under pure moments in flexion/extension (FE), lateral bending (LB) and axial rotation (AR) to determine the range of motion, while measuring the strains on the primary rods with strain gauge rosettes...
May 8, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29733439/proximal-versus-distal-femoral-derotation-osteotomy-in-bilateral-cerebral-palsy
#8
Mirjam Niklasch, Elizabeth R Boyer, Tom Novacheck, Thomas Dreher, Michael Schwartz
AIM: Femoral derotation osteotomy (FDO) can be conducted either proximally or distally to correct internal rotation gait (IRG) and increased anteversion in children with cerebral palsy (CP). Previous studies with limited numbers of participants have presented comparable short-term static and kinematic outcomes for both techniques. The objective of this retrospective multicentre study was to verify this thesis with a larger number of patients. METHOD: In total, 119 children with CP and IRG were included after matching the groups on preoperative mean stance hip rotation: 67 intertrochanteric (proximal group) FDO (average age at surgery 9y [SD 3y]); 52 supracondylar (distal group) FDO (average age at surgery 12y [SD 3y])...
May 7, 2018: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29729799/using-the-center-of-rotation-of-angulation-concept-in-hallux-valgus-correction-why-do-we-choose-the-proximal-oblique-sliding-closing-wedge-osteotomy
#9
REVIEW
Emilio Wagner, Cristian Ortiz, Pablo Wagner
Many different surgeries have been proposed for hallux valgus treatment, osteotomies being the currently recommended ones. Because of high recurrence rates, distal, diaphyseal and proximal osteotomies have been used to improve alignment and sesamoid reduction. The center of rotation of angulation (CORA) concept applies to any deformity and helps to completely realign 2 bone segments. When used with proximal osteotomies, bone displacement and angulation is performed obtaining complete deformity correction. The proximal oblique sliding closing wedge (POSCOW) osteotomy follows the CORA concept and permits preoperative planning...
June 2018: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/29729798/how-do-i-use-the-scarf-osteotomy-to-rotate-the-metatarsal-and-correct-the-deformity-in-three-dimensions
#10
REVIEW
Eric Swanton, Lyndon Mason, Andy Molloy
The scarf osteotomy has become the workhorse procedure for a large proportion of foot and ankle surgeons, especially in Europe, in the treatment of hallux valgus. Such a versatile procedure should not be underestimated, and planning and thought should precede any such procedure. The angle of bone cuts and magnitude of translation dictate the final position, and all movement axes should be given equal attention.
June 2018: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/29729797/how-i-use-a-three-dimensional-approach-to-correct-hallux-valgus-with-a-distal-metatarsal-osteotomy
#11
REVIEW
Daniel M G Winson, Anthony Perera
The role of uniplanar osteotomy in correction of multiplanar deformity in hallux valgus is a developing and promising concept. Careful consideration should be given to the literature when considering the concept of preexisting pronation of the metatarsal. Recent weight-bearing computed tomography studies contradict the existing literature and state that there is little or no rotation of the metatarsal; therefore, a multiplanar osteotomy should aim to correct the rotation caused by soft tissue imbalance at the tarsometatarsal and metatarsophalangeal joints rather than in the metatarsal itself...
June 2018: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/29729795/is-the-rotational-deformity-important-in-our-decision-making-process-for-correction-of-hallux-valgus-deformity
#12
REVIEW
Pablo Wagner, Emilio Wagner
Rotational deformity in hallux valgus is a recognized component and a demonstrated recurrence factor in patients who have undergone surgery. More than 20 years ago, publications started reporting metatarsal pronation as part of the hallux valgus pathology. Identifying metatarsal pronation should be part of the preoperative angular measurements. The proximal metatarsal rotational osteotomy and Lapidus fusion are some of the few techniques that reliably correct metatarsal pronation. They have good results, with more nonunions reported for the Lapidus...
June 2018: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/29729794/comparison-of-three-dimensional-displacement-among-different-metatarsal-osteotomies
#13
REVIEW
Young Yi, Woo-Chun Lee
Hallux valgus is a slowly progressing complex 3-dimensional biomechanical process. Therefore, precise understanding of 3-dimensional deformity is essential for satisfactory clinical result. Uniplanar correction on anteroposterior view of foot would be insufficient, and rotation on frontal plane as well as sagittal alignment should also be well corrected. This article will review the 3-dimensional components of bony displacement in different surgical methods for hallux valgus correction.
June 2018: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/29720326/piezoelectric-surgery-inserts-vs-conventional-burst-a-clinical-investigation
#14
D Bertossi, R Nocini, U Luciano, P Galzignato, G Ricciardi, A Lucchese, U Tacchino, D Donadello, L Lanaro, A Gualdi, D De Santis, G Giampaoli, P F Nocini
Piezosurgery is a new technique that can be used to cut mineralized structures without damaging adjacent soft tissues. This device has a lot of advantages: reduced surgical time, blood loss, and inferior alveolar nerve injury in bimaxillary osteotomy. Fifty patients underwent different surgical operations (orthognathic surgery, traumatic surgery, reconstructive surgery, aesthetic procedures) with 7 different kind of piezosurgery inserts in a period of 8 months. The same two surgeons performed all the procedures...
March 2018: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29720218/the-anteroposterior-axis-of-the-tibia-is-adjusted-to-approximately-a-right-angle-to-the-anterior-pelvic-plane-in-the-standing-position-in-patients-with-hip-dysplasia-similar-to-normal-subjects-a-cross-sectional-study
#15
Norio Imai, Dai Miyasaka, Hayato Suzuki, Kazuki Tsuchiya, Tomoyuki Ito, Izumi Minato, Naoto Endo
BACKGROUND: We previously described that the anteroposterior (AP) axis of the tibia is approximately perpendicular to the transverse axis of the anterior pelvic plane (APP) in the standing position in healthy subjects. The purpose of this study was to investigate the rotational alignment between the APP and clinical epicondylar axis and the AP axis of the tibia relative to pelvic coordination in the standing position in normal subjects and in women with developmental dysplasia of the hip (DDH) to aid decision making for surgeons in the alignment of implants in total hip or knee arthroplasty...
May 2, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29704036/evaluation-of-articular-cartilage-following-rotational-acetabular-osteotomy-for-hip-dysplasia-using-t2-mapping-mri
#16
Takeshi Shoji, Takuma Yamasaki, Soutaro Izumi, Mikiya Sawa, Yuji Akiyama, Yuji Yasunaga, Nobuo Adachi
BACKGROUND: Rotational acetabular osteotomy (RAO) is one of the surgical treatments for acetabular dysplasia, and satisfactory results have been reported. We evaluated the postoperative changes of articular cartilage and whether the pre-operative condition of the articular cartilage influences the clinical results using T2 mapping MRI. METHODS: We reviewed 31 hips with early stage osteoarthritis in 31 patients (mean age, 39.6 years), including three men and 28 women who underwent RAO for hip dysplasia...
April 27, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29698301/is-there-an-association-between-borderline-to-mild-dysplasia-and-hip-osteoarthritis-analysis-of-ct-osteoabsorptiometry
#17
Tohru Irie, Daisuke Takahashi, Tsuyoshi Asano, Ryuta Arai, Muhammad Alaa Terkawi, Yoichi M Ito, Norimasa Iwasaki
BACKGROUND: The definitive treatment of borderline-to-mild dysplasia remains controversial. A more comprehensive understanding of the etiology of osteoarthritis (OA) and clarification of any possible association between borderline-to-mild dysplasia and the pathogenesis of OA are essential. QUESTIONS/PURPOSES: (1) Does the distribution of acetabular subchondral bone density increase according to dysplasia severity? (2) Is there an association between borderline-to-mild dysplasia and OA pathogenesis? METHODS: We evaluated bilateral hips of patients with developmental dysplasia of the hip who underwent eccentric rotational acetabular osteotomy (ERAO) for inclusion in the dysplasia group and contralateral hips of patients with unilateral idiopathic osteonecrosis of the femoral head (ONFH) who underwent curved intertrochanteric varus osteotomy (CVO) for the control group...
April 23, 2018: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/29697601/lordosis-re-creation-in-tlif-and-plif-a-cadaveric-study-of-the-influence-of-surgical-bone-resection-and-cage-angle
#18
Peter A Robertson, William A Armstrong, Daniel L Woods, Jeremy J Rawlinson
STUDY DESIGN: Controlled cadaveric study of surgical technique in Transforaminal and Posterior Lumbar Interbody Fusion (TLIF & PLIF) OBJECTIVE.: To evaluate the contribution of surgical techniques and cage variables in lordosis re-creation in posterior interbody fusion (TLIF/PLIF). SUMMARY OF BACKGROUND DATA: The major contributors to lumbar lordosis are the lordotic lower lumbar discs. The pathologies requiring treatment with segmental fusion are frequently hypolordotic or kyphotic...
April 24, 2018: Spine
https://www.readbyqxmd.com/read/29694423/computer-assisted-teaching-of-bilateral-sagittal-split-osteotomy-learning-curve-for-condylar-positioning
#19
Charles Savoldelli, Emmanuel Chamorey, Georges Bettega
Bilateral sagittal split osteotomy (BSSO) is a widely-performed procedure in orthognathic surgery for the correction of dentofacial deformity. Condylar positioning is a critical step during BSSO to maximize functional and morphological results. The unsuitable positioning of condyles represents one of the causative mechanisms that may induce temporomandibular joint noxious effects after BSSO. Repositioning devices can assist surgeons in maintaining the preoperative condylar position; however, empirical repositioning methods based on experience gained are still commonly used...
2018: PloS One
https://www.readbyqxmd.com/read/29660737/treatment-of-a-paediatric-distal-femoral-malunion-deformity
#20
Greta S Pavarotti, Randy J Boudrieau
OBJECTIVE:  The aim of this article was to describe the surgical re-alignment technique and stabilization of a distal femoral deformity in a 6-week-old, male, Foxhound. METHODS:  A healing metaphyseal fracture, resulting in a valgus deformity with internal rotation, was observed just proximal to the distal femoral physis. The deformity was treated by an opening wedge osteotomy with lateral translation and external rotation of the distal epiphysis using a guide-wire technique; a corticocancellous allograft bridged the defect, which was stabilized with a 2...
April 16, 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
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