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https://www.readbyqxmd.com/read/29451939/reverse-shoulder-arthroplasty-in-the-weight-bearing-versus-non-weight-bearing-shoulder-mid-term-outcomes-with-minimum-5-year-follow-up
#1
Derek J Cuff, Brandon G Santoni
This retrospective review evaluated the mid-term outcomes of cemented reverse shoulder arthroplasty in patients who use the shoulder for weight bearing (WB) vs non-weight-bearing (NWB) patients. Twenty-five shoulders of 21 patients who used their upper extremity for WB (WB group) were treated with cemented reverse shoulder arthroplasty and followed for a minimum of 5 years postoperatively (average, 73 months). Seventy-five consecutive shoulders of 72 patients who were NWB (NWB group) were treated and matched for duration of follow-up (average, 72 months) to serve as a control group...
February 16, 2018: Orthopedics
https://www.readbyqxmd.com/read/29451050/9-years-follow-up-of-168-pin-fixed-supracondylar-humerus-fractures-in-children
#2
Noora Tuomilehto, Antti Sommarhem, Aarno Y Nietosvaara
Background and purpose - The long-term outcome of pin-fixed supracondylar humerus fractures (SCHF) in children is not well known. We assessed the 7- to 12-year outcome in 168 children. Patients and methods - During 2002-2006, 210 domestic children (age 7 (1-14) years) with SCHF (Gartland III 79%, Gartland II 19%, and flexion type 2%) were pin fixed in Helsinki. 36 (17%) patients had a nerve palsy. Radiographic alignment was regarded as satisfactory in 81% of patients (Baumann angle (BA) within ±10˚ of normal range and whose anterior humeral line (AHL) crossed the capitulum)...
February 16, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29449083/three-dimensional-scapular-dyskinesis-in-hook-plated-acromioclavicular-dislocation-including-hook-motion
#3
Eugene Kim, Seunghee Lee, Hwa-Jae Jeong, Jai Hyung Park, Se-Jin Park, Jaewook Lee, Woosub Kim, Hee Jin Park, So Yeon Lee, Tsuyoshi Murase, Kazuomi Sugamoto, Sumika Ikemoto
BACKGROUND: The purpose of this study is to analyze the 3-dimensional scapular dyskinesis and the kinematics of a hook plate relative to the acromion after hook-plated acromioclavicular dislocation in vivo. Reported complications of acromioclavicular reduction using a hook plate include subacromial erosion and impingement. However, there are few reports of the 3-dimensional kinematics of the hook and scapula after the aforementioned surgical procedure. METHODS: We studied 15 cases of acromioclavicular dislocation treated with a hook plate and 15 contralateral normal shoulders using computed tomography in the neutral and full forward flexion positions...
February 13, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29446677/how-to-integrate-cell-free-dna-screening-with-sonographic-markers-for-aneuploidy-an-update
#4
Thomas C Winter, Nancy C Rose
OBJECTIVE: The sonologist detects a so-called "soft marker" during approximately 10% of routine second-trimester anatomy examinations and is often uncertain about what further management is appropriate. This article will specifically address the management of patients with sonographic markers for six common entities: choroid plexus cysts (CPCs), ventriculomegaly (VM), echogenic intracardiac focus (EIF), urinary tract dilation (UTD), fetal echogenic bowel (FEB), and femoral and humeral shortening...
February 15, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29446490/a-3-dimensional-printed-patient-specific-guide-system-for-minimally-invasive-plate-osteosynthesis-of-a-comminuted-mid-diaphyseal-humeral-fracture-in-a-cat
#5
Bill Oxley
OBJECTIVE: To report the use of a 3-dimensional (3D)-printed patient-specific reduction guide system to facilitate minimally invasive plate osteosynthesis (MIPO) of a humeral fracture in a cat. STUDY DESIGN: Case report. ANIMALS: A 9-year-old male neutered domestic short hair cat weighing 4.4 kg. METHODS: A 9-year-old male domestic short hair cat was presented with a comminuted, mid-diaphyseal left humeral fracture. Computed tomographic data were processed to yield 3D mesh representations of both humeri and subsequently manipulated in computer-aided design software...
February 15, 2018: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29442159/open-reduction-and-fixation-with-a-locking-plate-without-bone-grafting-is-a-reasonable-and-safe-option-for-treating-proximal-humerus-nonunion
#6
Stefan Quadlbauer, Georg J Hofmann, Martin Leixnering, Rudolf Rosenauer, Thomas Hausner, Jürgen Reichetseder
AIM OF THE STUDY: The aim of this study was to evaluate union rate and clinical outcome in patients with proximal humeral nonunions treated by open reduction and locking plate fixation without bone grafting. METHODS: From 2011 to 2016, nine patients were treated using open reduction and locking plate stabilization without bone grafting. They were examined both clinically and radiologically, with a mean follow-up period of 31 months. Outcome was evaluated using pain and range of motion (ROM) parameters...
February 13, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29430398/revision-of-failed-rotator-cuff-reconstruction-with-a-large-humeral-head-cyst
#7
Bashar Reda, Catherine Coady, Ivan Wong
A revision rotator cuff repair is a technically challenging surgical procedure. This can be further complicated by the presence of poor quality of the cuff tissue, as well as a large greater tuberosity cyst, typically located at the rotator cuff footprint. This Technical Note discusses the surgical approach to deal with a revision rotator cuff tear with a large humeral head cyst. This described arthroscopic technique is performed in a single-stage procedure using a human dermal allograft (GraftJacket) for augmentation...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29430396/arthroscopic-biceps-tenodesis-using-interference-screw-fixation-in-the-bicipital-groove
#8
Thomas Amouyel, Yves-Pierre Le Moulec, Nicolas Tarissi, Mo Saffarini, Olivier Courage
Arthroscopic repair of the long head of the biceps (LHB) is performed to treat various biceps pathologies yet the choice between tenotomy or tenodesis remains controversial. Although tenotomy is simpler and quicker, tenodesis results in fewer complications, and there are several techniques available using various fixation devices and sites. This Technical Note describes an all-arthroscopic, suprapectoral tenodesis technique using a bioresorbable interference screw, without motorized devices to create the humeral tunnel in the bicipital groove...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29429562/evaluation-of-the-translation-distance-of-the-glenohumeral-joint-and-the-function-of-the-rotator-cuff-on-its-translation-a-cadaveric-study
#9
Yusuke Kawano, Noboru Matsumura, Akihiko Murai, Mitsunori Tada, Morio Matsumoto, Masaya Nakamura, Takeo Nagura
PURPOSE: To evaluate the distance and position of humeral head translation during glenohumeral motion and to investigate the function of the rotator cuff in glenohumeral translation. METHODS: Using 9 cadavers, glenohumeral translation during passive pendulum motion was tracked by an optical motion capture system. Tension was applied to 5 compartments of the rotator cuff muscles, and 7 different conditions of rotator cuff dysfunction were sequentially simulated. Three-dimensional glenohumeral structure was reconstructed from the computed tomography images of the specimens, and the distance and position of glenohumeral translation were compared among the conditions...
February 8, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29428759/graded-substitution-of-grains-with-bakery-by-products-modulates-ruminal-fermentation-nutrient-degradation-and-microbial-community-composition-in-vitro
#10
E Humer, S Aditya, A Kaltenegger, F Klevenhusen, R M Petri, Q Zebeli
A new segment of feed industry based on bakery by-products (BBP) has emerged. Yet, information is lacking regarding the effects of inclusion of BBP in ruminant diets on ruminal fermentation and microbiota. Therefore, the aim of this study was to evaluate the effect of the gradual replacement of grains by BBP on ruminal fermentation, nutrient degradation, and microbial community composition using the rumen-simulation technique. All diets consisted of hay and concentrate mixture with a ratio of 42:58 (dry matter basis), but differed in the concentrate composition with either 45% cereal grains or BBP, whereby 15, 30, or 45% of BBP were used in place of cereal grains...
February 7, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29427337/non-syndromic-bilateral-ulnar-aplasia-with-humero-radial-synostosis-and-oligo-ectro-dactyly
#11
Terri P McVeigh, Jonathan A Soye, Emma Gordon, Sally A Lynch
Congenital anomalies of the upper limbs are rare and etiologically heterogeneous. Herein, we report a male infant with non-syndromic bilateral Type Vb ulnar longitudinal dysplasia with radiohumeral synostosis (apparent humeral bifurcation), and bilateral oligo-ectro-syndactyly who was born following an uncomplicated pregnancy, with no maternal use of prescription or illicit medication. Array CGH (60,000 probes) and chromosomal breakage analysis (DEB) were normal. Similar appearances have been reported in children exposed to thalidomide or cocaine, but sporadic patients have also been reported without a prior history of exposure to known teratogens...
February 10, 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29426957/mri-of-pectoralis-major-tears-association-between-ancillary-findings-and-tear-severity
#12
Ivan R B Godoy, Edgar L Martinez-Salazar, F Joseph Simeone, Miriam A Bredella, William E Palmer, Martin Torriani
OBJECTIVE: To evaluate the significance of biceps tendon (BT) displacement and peri-bicipital hematoma on MRI in subjects with pectoralis major (PM) tears. We hypothesized that these features might be associated with tear severity at surgery. MATERIALS AND METHODS: We retrospectively identified MRI cases with PM injury and reviewed clinical, imaging, and surgical records. MR images were reviewed independently by two musculoskeletal radiologists to determine anterior displacement of BT (BT-disp, in mm) and the presence of triangular-shaped peri-bicipital hematoma...
February 9, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29426741/lower-shoulder-abduction-during-throwing-motion-may-cause-forceful-internal-impingement-and-decreased-anterior-stability
#13
Masaki Akeda, Teruhisa Mihata, Woong Kyo Jeong, Michelle H McGarry, Tetsuya Yamazaki, Thay Q Lee
BACKGROUND: Internal impingement and decreased anterior stability, which result from shoulder capsular loosening, are common shoulder pathologies in throwing athletes. The purpose of this study was to assess the effect of shoulder abduction angle on shoulder internal impingement and anterior shoulder stability during the simulated throwing motion. METHODS: Eight cadaveric shoulders were tested by simulating the late-cocking and acceleration phases of the throwing motion for intact and thrower's shoulder conditions...
February 7, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29424151/-treatment-of-humeral-shaft-fractures-in-children-with-closed-reduction-and-external-fixation
#14
Chao-Feng Zhao, Quan-Yang Gao, Tian-Jian Zhang, Lu-Li Han, Jun-Feng Zhao, Gang Chen, Yu Cui
OBJECTIVE: To explore the clinical effect of closed reduction and minimally invasive treatment of humeral shaft fractures in children. METHODS: From July 2011 to April 2015, 39 cases of pediatric humeral shaft fractures were treated by closed reduction and external fixation, including 27 males and 12 females with a mean age of 8.6 years old ranging from 3 to 14 years old. Time from injury to the treatment was 2 h to 7 days with an average of 2.7 days. There were 6 cases of upper fracture, 21 cases of middle fracture and 12 cases of lower fracture...
July 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29422391/stress-shielding-of-the-humerus-in-press-fit-anatomic-shoulder-arthroplasty-review-and-recommendations-for-evaluation
#15
REVIEW
Patrick J Denard, Patric Raiss, Reuben Gobezie, T Bradley Edwards, Evan Lederman
Uncemented press-fit humeral stems were developed with the goal of decreasing operative time, preserving bone stock, and easing revision. In recent years, short stems and stemless humeral implants have also become available. These press-fit humeral implants have varying designs that can lead to changes in stress distribution in the proximal humerus. Such stress shielding manifests as bony adaptations and may affect long-term functional outcome and the ability to perform revision. However, current studies of humeral fixation during total shoulder arthroplasty are complicated because a variety of classification systems have been used to report findings...
February 5, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29420766/military-medic-performance-with-employment-of-a-commercial-intraosseous-infusion-device-a-randomized-crossover-study
#16
Brett Gendron, Aaron Cronin, Jonathan Monti, Andrew Brigg
Background: Obtaining intraosseous (IO) access remains an invaluable skill in the management and resuscitation of patients on the battlefield. The U.S. Army Combat Medic is currently trained to utilize a sternal IO device (FAST1® Intraosseous Infusion System); however, the Arrow® EZ-IO® Intraosseous Vascular Access System offers unique benefits including ease of use, reload ability, and placement location versatility. Studies have demonstrated high success rates in the operational settings using the EZ-IO® System; however, no prospective studies have been conducted to assess the performance of U...
February 6, 2018: Military Medicine
https://www.readbyqxmd.com/read/29420387/high-grade-conventional-osteosarcoma-of-the-mandible-associated-with-p53-germline-mutation
#17
Daniel Ginat, Jefree Schulte, Zhen Gooi, Nicole Cipriani
High-grade conventional osteosarcoma of the mandible is a rare entity that can manifest as a rapidly growing mass. The authors report the case of a young adult patient with right mandible pain and swelling and a history of humeral osteosarcoma treated over 1 decade earlier. Computed tomography and magnetic resonance imaging showed a mass arising from the right mandible that progressed despite induction chemotherapy and the patient underwent surgery. Histopathology revealed the presence of malignant osteoblasts and osteoid, which led to the diagnosis of high-grade conventional osteosarcoma...
February 7, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29418111/scaling-of-primate-forearm-muscle-architecture-as-it-relates-to-locomotion-and-posture
#18
Carissa L Leischner, Michael Crouch, Kari L Allen, Damiano Marchi, Francisco Pastor, Adam Hartstone-Rose
It has been previously proposed that distal humerus morphology may reflect the locomotor pattern and substrate preferred by different primates. However, relationships between these behaviors and the morphological capabilities of muscles originating on these osteological structures have not been fully explored. Here, we present data about forearm muscle architecture in a sample of 44 primate species (N = 55 specimens): 9 strepsirrhines, 15 platyrrhines, and 20 catarrhines. The sample includes all major locomotor and substrate use groups...
March 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29417774/-risk-factors-of-cubitus-varus-in-humeral-condylar-fracture-after-conservative-treatment-in-child
#19
Jian-Min Lyu, Chuan-Fu Lin, Li-Qin Lan
OBJECTIVE: To further investigate the risk factors of cubitus varus in humeral condylar fracture after conservative treatment in children through Logistic regression analysis, so as to guide the clinical treatment. METHODS: Children with humeral condylar fracture who were treated by manipulative reduction and plaster fixation in our hospital from March 2008 to December 2014 were studied. The clinical data including age, gender, BMI, time from injury to reduction, direction of displacement, rotation displacement, fixed position, and epiphyseal injury were collected...
May 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29415824/a-morphovolumetric-study-of-head-malposition-in-proximal-humeral-fractures-based-on-3-dimensional-computed-tomography-scans-the-control-volume-theory
#20
Raffaele Russo, Antonio Guastafierro, Livia Renata Pietroluongo
BACKGROUND: This study regards a volumetric analysis of proximal humeral fractures. The main purpose was to investigate the head displacement in relation to the shaft and its link to volume reductions ("bone loss") of the anatomic segments interposed between the head and the shaft: the tuberosities and the calcar. We call this area "control volume." METHODS: In 20 fractures, we used 3-dimensional virtual reconstruction to create a reference system that divides geometrically the control volume and allows the evaluation of displacement angles of the humeral head...
February 5, 2018: Journal of Shoulder and Elbow Surgery
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