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Distal humerous

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https://www.readbyqxmd.com/read/29150186/articular-scaling-and-body-mass-estimation-in-platyrrhines-and-catarrhines-modern-variation-and-application-to-fossil-anthropoids
#1
Jonathan M G Perry, Siobhán B Cooke, Jacqueline A Runestad Connour, M Loring Burgess, Christopher B Ruff
Body mass is an important component of any paleobiological reconstruction. Reliable skeletal dimensions for making estimates are desirable but extant primate reference samples with known body masses are rare. We estimated body mass in a sample of extinct platyrrhines and Fayum anthropoids based on four measurements of the articular surfaces of the humerus and femur. Estimates were based on a large extant reference sample of wild-collected individuals with associated body masses, including previously published and new data from extant platyrrhines, cercopithecoids, and hominoids...
November 14, 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/29125707/vascularized-humeral-periosteal-flap-to-treat-lateral-humeral-condyle-nonunion-an-anatomical-study-and-report-of-two-successfully-treated-pediatric-cases
#2
S Sergi Barrera-Ochoa, Francisco Soldado, Alfonso Rodriguez-Baeza, Paula Diaz-Gallardo, Felipe Hodgson, Pablo S Corona, Jorge Knörr
PURPOSE: Nonunion is a common complication of lateral condyle humeral (LCH) fractures in children. In situ fixation with a screw and bone grafting is the classically-recommended method of treatment. The purpose of this study is to analyze the feasibility of obtaining a vascularized periosteal flap obtained from the lateral humerus and based on the posterior collateral radial vessels (PCRV). Second, to report the results after the application in two pediatric cases. METHODS: Periosteal branches of PCRV were studied in ten upper limbs from fresh human cadavers...
November 10, 2017: Microsurgery
https://www.readbyqxmd.com/read/29103824/modified-anterolateral-approach-for-internal-fixation-of-holstein-lewis-humeral-shaft-fractures
#3
Ho Min Lee, Young Sung Kim, Suk Kang, Min Young Lee, Jong Pil Kim
BACKGROUND: The authors modified the anterolateral approach for Holstein-Lewis humeral shaft fractures using a plating technique to achieve sufficient distal fixation by minimal splitting of the brachioradialis muscle to fix the most distal screws. The purpose of this retrospective study was to evaluate the efficacy of our modified anterolateral approach for Holstein-Lewis humeral fractures and document clinical and functional results. MATERIALS AND METHODS: Between 2008 and 2014, 18 patients (mean age 35...
November 2, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29094012/managing-extremely-distal-periprosthetic-femoral-supracondylar-fractures-of-total-knee-replacements-a-new-philos-ophy
#4
Kevin J Donnelly, Adam Tucker, Angel Ruiz, Neville W Thompson
We report two cases where a proximal humeral locking plate was used for the fixation of an extremely distal, type III peri-prosthetic femoral fractures in relation to a total knee replacement (TKR). In each case there was concern regarding the fixation that could be achieved using the available anatomic distal femoral plates due to the size and bone quality of distal fragment. The design of the Proximal Humeral Internal Locking System (PHILOS) allows nine 3.5-mm locking screws to be placed over a small area in multiple directions...
October 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29073240/the-course-of-the-radial-nerve-in-the-distal-humerus-a-novel-anatomy-based-radiographic-assessment
#5
H P Theeuwes, B van der Ende, J W Potters, A J Kerver, J H J M Bessems, G-J Kleinrensink
METHODS AND FINDINGS: Measurements were done on both arms of ten specially embalmed specimens. Arms were dissected and radiopaque wires attached to the radial nerve in the distal part of the upper arm. Digital radiographs were obtained to determine the course of the radial nerve in the distal 20 cm of the humerus in relation to bony landmarks; medial epicondyle and capitellum-trochlea projection (CCT). Analysis was done with ImageJ and Microsoft Excel software. We also compared humeral nail specifications from different companies with the course of the radial nerve to predict possible radial nerve damage...
2017: PloS One
https://www.readbyqxmd.com/read/29063283/-prosthesis-replacement-in-periprosthetic-humeral-fractures
#6
REVIEW
M Jaeger, D Maier, K Izadpanah, N P Südkamp
OBJECTIVE: Stabilization of the humerus with preservation or restoration of the shoulder function. INDICATIONS: Always in the presence of a loose prosthesis. It may become necessary in conditions of poor bone stock and if osteosynthesis is not possible. CONTRAINDICATIONS: Noncompliant patients due to alcohol or drugs. Local infections. SURGICAL TECHNIQUE: The loose implant is removed using an extended anterior deltopectoral approach...
October 23, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29054684/humeral-shaft-fractures-union-outcomes-in-a-large-cohort
#7
Frances E Harkin, Richard J Large
BACKGROUND: Humeral shaft fractures can be managed conservatively or operatively. Fracture characteristics were analyzed to identify patients who would benefit from early operative fixation. METHODS: We performed a retrospective cohort study of 126 consecutive humeral shaft fractures (2008-2015). Fractures were classified according to fracture type, location, separation, and comminution. RESULTS: Of 126 patients, 96 were managed conservatively...
November 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29053545/three-dimensional-deformities-of-nonoperative-midshaft-clavicle-fractures-a-surface-matching-analysis
#8
Satoshi Oki, Noboru Matsumura, Yoshimori Kiriyama, Takuji Iwamoto, Kazuki Sato, Takeo Nagura
OBJECTIVE: The purpose of this study was to describe the 3-dimensional deformities of midshaft clavicle fractures, which had been treated nonoperatively, using computed tomography (CT) surface matching. METHODS: Twenty-one patients with unilateral midshaft clavicle fracture, who had been treated nonoperatively, were enrolled and evaluated retrospectively. The 3-dimensional deformity of the fractured clavicle was evaluated by CT surface matching. CT scans of 21 age- and sex-matched patients with initial traumatic shoulder dislocation or proximal humeral fracture were enrolled as a control group, and the differences in 3-dimensional deformities and lengths of the clavicles between the fracture group and the control group were evaluated...
November 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29052827/primary-exploration-for-radial-nerve-palsy-associated-with-unstable-closed-humeral-shaft-fracture
#9
Soo Hong Han, In Tae Hong, Ho Jae Lee, Sang June Lee, Uk Kim, Dong Won Kim
BACKGROUND: The treatment of radial nerve palsy caused by closed humeral shaft fracture is a matter of debate. The purpose of this study is to evaluate the outcome of early surgical management of radial nerve palsy in patients with unstable closed humeral shaft fractures and to determine whether patients with this injury should be surgically explored. METHODS: Medical records of 15 consecutive patients who had undergone open reduction and internal fixation for unstable closed humeral shaft fractures were reviewed...
September 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29050856/the-relationship-between-age-rotator-cuff-integrity-and-osseous-microarchitecture-of-greater-tuberosity-where-should-we-put-anchor
#10
Erica Kholinne, Hyun Joo Lee, Sung Jung Kim, So Hyun Park, In-Ho Jeon
OBJECTIVE: The aim of this study was to compare the microarchitecture of the greater tuberosity with or without rotator cuff tear and to obtain optimum location for anchor screw insertion for rotator cuff repair. METHODS: Twenty-five humeral heads were harvested from 13 male cadavers of mean age 58.4 years, including 6 humeri with rotator cuff tear and 19 intact humeri. Six regions of interest (proximal, intermediate, and distal zones of the superficial and deep regions) were divided into the anterior (G1), middle (G2), and posterior (G3) areas of the greater tuberosity...
October 16, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29037536/open-reduction-and-internal-fixation-for-nonunion-of-extra-articular-distal-humeral-fractures-in-patients-70-years-and-older
#11
Soo Min Cha, Hyun Dae Shin
HYPOTHESIS: The study purpose was to report the clinical and radiologic outcomes of osteosynthesis by open reduction and internal fixation for nonunion of extra-articular distal humeral fractures in patients aged 70 years or older. MATERIALS AND METHODS: This retrospective study included 28 patients who received osteosynthesis treatment between March 2010 and December 2015. Primary conservative treatment had failed in all patients. All surgical procedures were performed via the posterior approach without olecranon osteotomy and with the use of double-locking plates for each column...
October 13, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29022039/paediatric-supracondylar-humeral-fractures-a-technique-for-safe-medial-pin-passage-with-zero-incidence-of-iatrogenic-ulnar-nerve-injury
#12
Chin Yee Woo, Han Loong Ho, Mohammad Bin Zainuddin Ashik, Kevin Boon Leong Lim
INTRODUCTION: The cross Kirschner wire (k-wire) configuration in closed reduction and percutaneous pinning of paediatric supracondylar humeral fracture afford superior stability. However, medial pin placement presents a risk of iatrogenic ulnar nerve injury. This study describes, in step-by-step detail, another safe method of percutaneous medial pin insertion. METHODS: The technique involved placing the patient's arm in external rotation, with elbow flexed no more than 45° after closed reduction...
October 12, 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/29021875/endoprosthetic-reconstruction-of-distal-humerus-following-resection-of-distal-humeral-giant-cell-tumours-in-six-patients-in-rural-india
#13
N Balasubramanian, R Gnanasundaram, S Prakasam
Giant cell tumour is a commonly occurring benign bone tumour in the Indian population. The common sites of involvement in descending order of frequency are distal femur, proximal tibia, distal radius and proximal humerus. The less commonly occurring sites are distal humerus, pelvis and proximal femur. We present six cases of giant cell tumour involving the distal humerus in rural India. After obtaining a tissue diagnosis by Trucut biopsy and classifying using Enneking's classification, we proceeded to perform wide resection followed by endoprosthetic reconstruction using custom mega prosthesis...
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28983223/surgical-technique-treatment-of-distal-humerus-nonunions
#14
Johanna C E Donders, Dean G Lorich, David L Helfet, Peter Kloen
BACKGROUND: Open reduction and internal fixation of distal humerus fractures is standard of care with good to excellent outcome for most patients. However, nonunions of the distal humerus still occur. These are severely disabling problems for the patient and a challenge for the treating physician. Fortunately, a combination of standard nonunion techniques with new plate designs and fixation methods allow even the most challenging distal humeral nonunion to be treated successfully. QUESTIONS/PURPOSES: The purpose of this manuscript is to describe our current technique in treating distal humeral nonunion as it has evolved over the last four decades...
October 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/28971653/-total-elbow-replacement-as-an-alternative-to-severely-comminuted-fractures-around-the-elbow
#15
Eyal Ginesin, Yaniv Keren, Ofer Zachs, Doron Norman
BACKGROUND: Intra-articular elbow fractures are considered to be one of the most complex injuries in orthopedic trauma. Some are too comminuted for open reduction and internal fixation. Recently, total elbow replacement (TER) has gained popularity for the treatment of comminuted elbow trauma when other treatment options are not possible. METHODS: Since 2007-2013 we treated 18 patients with TER due to comminuted distal humeral fractures. We used the Disabilities of the Arm, Shoulder and Hand scoring system (DASH) to evaluate the patient's satisfaction...
September 2017: Harefuah
https://www.readbyqxmd.com/read/28971244/an-uncommon-variant-of-the-essex-lopresti-injury
#16
Mohamed Ali Kedous, Ahmed Msakni, Wael Chebbi, Mourad Zaraa, Mondher Mbarek
The Essex-Lopresti injury is an extremely rare condition combining radial head or neck fracture, distal radio-ulnar joint dislocation and rupture of the interosseous membrane. However, there are rare or unusual varieties or associated injuries. We report a case of a 46-year-old woman with a posterior dislocation of the radio-humeral joint, a radial shaft fracture, and a distal radio-ulnar joint dislocation. She underwent open reduction and internal fixation of the radial shaft fracture followed by an immobilization by a long elbow splint in supination for 6 weeks...
October 2, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28945134/three-dimensional-assessment-of-curvature-torsion-and-canal-flare-index-of-the-humerus-of-skeletally-mature-nonchondrodystrophic-dogs
#17
Emily J Smith, Denis J Marcellin-Little, Ola L A Harrysson, Emily H Griffith
OBJECTIVE To assess 3-D geometry of the humerus of dogs and determine whether the craniocaudal canal flare index (CFI) is associated with specific geometric features. SAMPLE CT images (n = 40) and radiographs (38) for 2 groups of skeletally mature nonchondrodystrophic dogs. PROCEDURES General dimensions (length, CFI, cortical thickness, and humeral head offset), curvature (shaft, humeral head, and glenoid cavity), version (humeral head and greater tubercle), and torsion were evaluated on CT images. Dogs were allocated into 3 groups on the basis of the craniocaudal CFI, and results were compared among these 3 groups...
October 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28941967/prescribed-exercise-programs-may-not-be-effective-in-reducing-impairments-and-improving-activity-during-upper-limb-fracture-rehabilitation-a-systematic-review
#18
Andrea M Bruder, Nora Shields, Karen J Dodd, Nicholas F Taylor
QUESTION: What is the effect of exercise on increasing participation and activity levels and reducing impairment in the rehabilitation of people with upper limb fractures? DESIGN: Systematic review of controlled trials. PARTICIPANTS: Adults following an upper limb fracture. INTERVENTION: Any exercise therapy program, including trials where exercise was delivered to both groups provided that the groups received different amounts of exercise...
October 2017: Journal of Physiotherapy
https://www.readbyqxmd.com/read/28939334/surgical-anatomy-of-the-radial-nerve-in-the-deltopectoral-approach-for-revision-shoulder-arthroplasty-and-periprosthetic-fracture-fixation-a-cadaveric-study
#19
Michael C Fu, Michael D Hendel, Xiang Chen, Russell F Warren, David M Dines, Lawrence V Gulotta
BACKGROUND: Radial nerve injury is a rare but clinically significant complication of revision shoulder arthroplasty and fixation of native and periprosthetic proximal humeral fractures. Understanding of the anatomic relationship between the radial nerve as it enters the humeral spiral groove and anterior shoulder landmarks in a deltopectoral approach is necessary to avoid iatrogenic radial nerve injury. METHODS: Eight forequarter cadaveric specimens were dissected through a deltopectoral approach...
September 19, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28926381/total-elbow-arthroplasty-for-distal-humeral-fractures-a-ten-year-minimum-follow-up-study
#20
Raul Barco, Philipp N Streubel, Bernard F Morrey, Joaquin Sanchez-Sotelo
BACKGROUND: Total elbow arthroplasty is commonly considered for elderly patients with comminuted distal humeral fractures. Satisfactory short-term outcomes have been reported, but long-term outcomes are unknown. Our purpose was to assess the long-term outcomes of total elbow arthroplasty after distal humeral fracture and to determine differences between elbows with or without inflammatory arthritis at the time of fracture. METHODS: Forty-four total elbow arthroplasties were performed after distal humeral fracture; those patients were followed for a minimum of 10 years and were evaluated with regard to pain, motion, Mayo Elbow Performance Scores, complications, and reoperations...
September 20, 2017: Journal of Bone and Joint Surgery. American Volume
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