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https://www.readbyqxmd.com/read/28628579/distal-humeral-flexion-osteotomy-for-the-treatment-of-supracondylar-extension-type-malunions-in-children
#1
Sebastian Farr, Rudolf Ganger, Werner Girsch
Distal humeral extension-type malunions may occur as a complication following improper reduction of supracondylar humerus fractures. We evaluated results after distal humeral flexion osteotomies for sagittal realignment of the humeral condyle in children. Medical records and radiographs of all patients younger than 18 years of age, who underwent this procedure because of a clinically relevant lack of elbow flexion, were evaluated. In a cohort of 18 children with a mean age of 8 years at the time of surgery and a mean follow-up duration of 1 year, elbow flexion increased significantly from a mean of 101° preoperatively to 126° at the final follow-up; established radiographic parameters (e...
June 16, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28593403/submuscular-double-bridge-plating-for-complex-distal-fractures-of-the-humerus-an-alternative-safe-and-efficient-treatment-method
#2
Andre Wajnsztejn, Diego Dantas de Albuquerque, Italo Espinola, Pablo Falchetto Altoé, Leandro Ejnisman, Mario Lenza, Robinson Esteves Santos Pires
PURPOSE: The aim of our study is to show the functional outcomes and complication rates of humeral complex fractures in adults, using osteosynthesis with two bridging orthogonal submuscular plates. METHODS: The study consists of a prospective case series of 13 patients with isolated humeral complex fractures treated with two bridging orthogonal submuscular plates. Functional assessment was performed using disabilities of the arm, shoulder, and hand (DASH) score with 30 items...
June 7, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28593358/accuracy-in-identifying-the-elbow-rotation-axis-on-simulated-fluoroscopic-images-using-a-new-anatomical-landmark
#3
J K Wiggers, R M Snijders, J G G Dobbe, G J Streekstra, D den Hartog, N W L Schep
External fixation of the elbow requires identification of the elbow rotation axis, but the accuracy of traditional landmarks (capitellum and trochlea) on fluoroscopy is limited. The relative distance (RD) of the humerus may be helpful as additional landmark. The first aim of this study was to determine the optimal RD that corresponds to an on-axis lateral image of the elbow. The second aim was to assess whether the use of the optimal RD improves the surgical accuracy to identify the elbow rotation axis on fluoroscopy...
June 7, 2017: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/28580254/use-of-a-cutting-instrument-for-fresh-osteochondral-distal-tibia-allograft-preparation-treatment-of-glenoid-bone-loss
#4
Marcio B Ferrari, Anthony Sanchez, George Sanchez, Ramesses Akamefula, Bradley M Kruckeberg, Matthew T Provencher
Glenoid bone loss presents a major risk for glenohumeral instability that has been well recognized as a cause of instability recurrence after attempted Bankart repair, and although most surgeons consider the Latarjet procedure as the gold standard, failures can occur with this technique as well and the search for alternative grafts to address glenoid bone loss is a major topic of ongoing research in the field. Of these techniques, the distal tibia allograft (DTA) has been shown to provide an excellent option to restore glenoid biomechanics, due to its congruency with the humeral head, dense bony quality, and the facility of harvest...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28576702/operative-management-of-supracondylar-humeral-fractures-in-children-comparison-of-five-fixation-methods
#5
Sébastien Pesenti, Alexandre Ecalle, Lilian Gaubert, Emilie Peltier, Elie Choufani, Elke Viehweger, Jean-Luc Jouve, Franck Launay
BACKGROUND: The best method for stabilising supracondylar humeral fractures (SHFs) in children remains unclear. The objective of this study was to compare the outcomes of five different fixation methods for SHFs in children. HYPOTHESIS: Differences in intra-operative and short-term post-operative parameters can be demonstrated across different fixation methods for SHFs in children. PATIENTS AND METHODS: We reviewed the medical files of paediatric patientsmanaged at our centre between 2006 and 2016 for SHFwith major displacement (type 3 or4 in the Lagrange-Rigault classification)...
May 30, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28567429/are-the-current-little-league-pitching-guidelines-adequate-a-single-season-prospective-mri-study
#6
Andrew V Pytiak, Phillip Stearns, Tracey P Bastrom, Jerry Dwek, Peter Kruk, Joanna H Roocroft, Andrew T Pennock
BACKGROUND: Little League throwing guidelines have recently been implemented in an attempt to lessen the growing number of elbow injuries occurring in youth baseball players. HYPOTHESIS/PURPOSE: The purpose of this study was to examine pre- and postseason changes seen on magnetic resonance imaging (MRI) in youth baseball players' elbows in an attempt to identify risk factors for pain and MRI abnormalities, with a particular focus on the current Little League guidelines...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28567227/measurement-methods-for-humeral-retroversion-using-two-dimensional-computed-tomography-scans-which-is-most-concordant-with-the-standard-method
#7
Joo Han Oh, Woo Kim, Angel A Cayetano
BACKGROUND: Humeral retroversion is variable among individuals, and there are several measurement methods. This study was conducted to compare the concordance and reliability between the standard method and 5 other measurement methods on two-dimensional (2D) computed tomography (CT) scans. METHODS: CT scans from 21 patients who underwent shoulder arthroplasty (19 women and 2 men; mean age, 70.1 years [range, 42 to 81 years]) were analyzed. The elbow transepicondylar axis was used as a distal reference...
June 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28538289/a-three-dimensional-analysis-of-the-fracture-planes-in-pediatric-lateral-humeral-condyle-fractures-for-image-based-pin-positioning-during-fixation
#8
Do Young Park, Jae Ho Cho, Doo-Hyung Lee, Wan-Sun Choi, Jun Young Bang, Xiang Yun Yin
OBJECTIVE: To determine the 3 dimensional morphology of pediatric lateral condylar physeal fractures using 3-dimensional computed tomography (3D-CT) and to identify optimal pin positions for percutaneous pinning. DESIGN: Prospective case series of consecutively treated patients SETTING:: Tertiary university hospital setting. PATIENTS: Preoperative 3D-CTs in pediatric surgical candidates diagnosed with lateral condylar physeal fractures INTERVENTION:: Closed reduction and percutaneous pinning was performed...
May 17, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28529010/aneurysmal-bone-cyst-healing-response-with-intramedullary-lengthening-nail
#9
Ahmet Emrah Acan, Onur Basci, Hasan Havitcioglu
We report the treatment process of a pediatric patient with deformity and shortening in the arm after a recurrent aggressive aneurysmal bone cyst (ABC) in the proximal humerus. The patient was treated with curettage of the lesion and lengthening on an intramedullary nail following an osteotomy just distal to the ABC. The period of lengthening was approximately 50 days. At the end of the treatment the lengthening goal was achieved without any neurovascular complication. There was a minimal loss in shoulder hyperabduction due to the deformity of the humeral head...
May 18, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28509822/fracture-prevention-in-the-orthopaedic-environment-outcomes-of-a-coordinator-based-fracture-liaison-service
#10
Earl R Bogoch, Victoria Elliot-Gibson, Dorcas Beaton, Joanna Sale, Robert G Josse
BACKGROUND: Fracture liaison services focus on secondary fracture prevention by identifying patients at risk for future fracture and initiating appropriate evaluation, risk assessment, education, and therapeutic intervention. This study describes key clinical outcomes including bone mineral densitometry, physician assessment, and pharmacotherapy initiation in pharmacotherapy-naïve patients undergoing treatment for fragility fracture in a Canadian fracture liaison service. METHODS: We determined rates of post-fracture investigation and treatment for inpatients and outpatients with a fragility fracture seen in a coordinator-based fracture liaison service at an urban university trauma hospital...
May 17, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28507780/current-concepts-in-elbow-arthroplasty
#11
REVIEW
Daniel Bachman, Akin Cil
Distal humeral replacement and the total elbow are two commonly-used arthroplastiesEach prosthesis has evolving indications and surgical techniquesRecent changes in device design and implantation methods are due to biomechanical and clinical outcome-based researchNew prostheses and methods provide: better elbow kinematics, more durable bearings and longer-lasting joint replacement potential Cite this article: EFORT Open Rev 2017;2:83-88. DOI: 10.1302/2058-5241.2.160064.
April 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28502605/transphyseal-separation-of-the-distal-humerus-in-newborns
#12
Cosimo Gigante, Sunil Gurpur Kini, Carlo Origo, Andrea Volpin
Obstetric traumatic separation of the distal humeral epiphysis is a very uncommon injury, which presents a diagnostic challenge. These case serials reviewed the functional outcomes of 5 patients who had sustained a fracture-separation of the distal humeral epiphysis at birth. The diagnosis was made at a mean time of 40.8 h after delivery. All the patients were treated with gentle close manipulation, reduction under fluoroscopy and above-elbow cast application. After discharge, the patients were followed up for a mean of 30 months...
April 14, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28499398/biomechanical-evaluation-of-a-novel-dualplate-fixation-method-for-proximal-humeral-fractures-without-medial-support
#13
Yu He, Yaoshen Zhang, Yan Wang, Dongsheng Zhou, Fu Wang
BACKGROUND: Comminuted fractures of the proximal humerus are generally treated with the locking plate system, and clinical results are satisfactory. However, unstable support of the medial column results in varus malunion and screw perforation. We designed a novel medial anatomical locking plate (MLP) to directly support the medial column. Theoretically, the combined application of locking plate and MLP (LPMP) would directly provide strong dual-column stability. We hypothesized that the LPMP could provide greater construct stability than the locking plate alone (LP), locking plate combined with a fibular graft (LPSG), and locking plate combined with a distal radius plate (LPDP)...
May 12, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28495573/spatial-mapping-of-humeral-head-bone-density
#14
Hamidreza Alidousti, Joshua W Giles, Roger J H Emery, Jonathan Jeffers
BACKGROUND: Short-stem humeral replacements achieve fixation by anchoring to the metaphyseal trabecular bone. Fixing the implant in high-density bone can provide strong fixation and reduce the risk of loosening. However, there is a lack of data mapping the bone density distribution in the proximal humerus. The aim of the study was to investigate the bone density in proximal humerus. METHODS: Eight computed tomography scans of healthy cadaveric humeri were used to map bone density distribution in the humeral head...
May 8, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28479258/triceps-sparing-extra-articular-step-cut-olecranon-osteotomy-for-distal-humeral-fractures-an-anatomic-study
#15
Matthias A Zumstein, Sumit Raniga, Remy Flueckiger, Lorenzo Campana, Beat K Moor
BACKGROUND: This anatomic study investigated the distal humeral articular surface exposure achievable through a triceps-sparing oblique extra-articular osteotomy of the olecranon with a step-cut modification compared with the anconeus flap transolecranon apex distal chevron osteotomy. In addition, the bone contact surface areas of the osteotomized surfaces after transolecranon and extra-articular osteotomies were compared. METHODS: Seven pairs of fresh adult cadaveric elbow joints were examined...
May 4, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28459772/time-from-injury-to-surgical-fixation-of-diaphyseal-humerus-fractures-is-not-associated-with-an-increased-risk-of-iatrogenic-radial-nerve-palsy
#16
Kristin Shoji, Marilyn Heng, Mitchel B Harris, Paul T Appleton, Mark S Vrahas, Michael J Weaver
OBJECTIVES: to determine if time from injury to fixation of diaphyseal humeral fractures and nonunions is associated with the risk of iatrogenic radial nerve palsy. DESIGN: Retrospective review. SETTING: Two level 1 trauma centers. PATIENTS/PARTICIPANTS: Between 2001 and 2015, 325 patients were treated with fixation of a humerus fracture or humerus nonunion who had documented intact radial nerve function pre-operatively...
April 25, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28451024/-distal-hypoperfusion-ischemic-syndrome-complicating-a-humeral-cephalic-arteriovenous-fistula
#17
Youssef Alaoui Lamrani, Chakib Maaroufi
No abstract text is available yet for this article.
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28450102/an-in%C3%A2-vitro-study-of-the-role-of-implant-positioning-on-ulnohumeral-articular-contact-in-distal-humeral-hemiarthroplasty
#18
Roxanna E Abhari, Ryan Willing, Graham J W King, James A Johnson
PURPOSE: To investigate the effect of implant positioning on ulnohumeral contact using patient-specific distal humeral (DH) implants. METHODS: Seven reverse-engineered DH implants were manufactured based on computed tomography scans of their osseous geometry. Native ulnae were paired with corresponding native humeri and custom DH implants in a loading apparatus. The ulna was set at 90° of flexion and the humeral component (either native bone or reverse-engineered implant) was positioned from 5° varus to 5° valgus in 2...
April 25, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28437841/characterizing-the-evolution-of-wide-gauge-features-in-stylopodial-limb-elements-of-titanosauriform-sauropods-via-geometric-morphometrics
#19
Paul V Ullmann, Matthew F Bonnan, Kenneth J Lacovara
Wide-gauge posture of titanosauriform sauropods remains an enigmatic peculiarity among terrestrial vertebrates. Here, two-dimensional geometric morphometrics and thin plate splines analyses were used to quantitatively analyze shape differences among sauropodomorph humeri and femora to identify how these elements may differ according to body gauge. Results demonstrate that titanosauriforms generally possess proportionately gracile humeri in comparison to other sauropods, with relatively more medially oriented humeral heads and proximally located deltopectoral crests...
April 24, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28422967/craniodental-and-humeral-morphology-of-a-new-species-of-masrasector-teratodontinae-hyaenodonta-placentalia-from-the-late-eocene-of-egypt-and-locomotor-diversity-in-hyaenodonts
#20
Matthew R Borths, Erik R Seiffert
Hyaenodonta is a diverse clade of carnivorous mammals that were part of terrestrial faunas in the Paleogene of Eurasia and North America, but the oldest record for the group is Afro-Arabian, making the record there vital for understanding the evolution of this wide-spread group. Previous studies show an ancient split between two major clades of hyaenodonts that converged in hypercarnivory: Hyainailourinae and Hyaenodontinae. These clades are each supported by cranial characters. Phylogenetic analyses of hyaenodonts also support the monophyly of Teratodontinae, an Afro-Arabian clade of mesocarnivorous to hypercarnivorous hyaenodonts...
2017: PloS One
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