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Radial neck

Alastair Henry, James A McCaul
INTRODUCTION: Complex hard and soft tissue defects produced as a result of ablative resection of head and neck malignancy can represent a reconstructive challenge, especially when patients are medically compromised. PRESENTATION OF CASE: We present the case of 72-year-old women presenting with an oral squamous cell carcinoma of the right floor of mouth invading the right mandible. Surgical management of the disease required ablative surgery with complex free tissue transfer reconstruction to provide restoration of form and function...
October 12, 2016: International Journal of Surgery Case Reports
Eugene T H Ek, Sophia K Paul, Robert N Hotchkiss
BACKGROUND: The role of elbow contracture release in the very young is unclear, with existing studies reporting conflicting results. This study evaluated the long-term results after open elbow contracture release in patients aged younger than 18 years. METHODS: Between 1994 and 2012, 32 patients underwent open elbow contracture release at a mean age of 13.8 years (range, 5-18 years), and their outcomes were reviewed. The primary cause was traumatic in 30 patients (4 radial head/neck fractures, 5 intra-articular distal humeral fractures, 11 extra-articular distal humeral fractures, 10 complex fracture-dislocations), and the mean time from the index injury to contracture release was 16...
October 14, 2016: Journal of Shoulder and Elbow Surgery
H Mike Kim, Colin R Andrews, Evan P Roush, Gregory I Pace, Gregory S Lewis
BACKGROUND: Double-strand lateral ulnar collateral ligament (LUCL) reconstruction is an effective treatment for posterolateral rotatory instability (PLRI) of the elbow, but anatomic landmarks for ulnar tunnel placement are often difficult to identify intraoperatively, which potentially can result in a nonanatomic LUCL reconstruction. This study investigated the effect of ulnar tunnel location on joint stability in double-strand LUCL reconstruction. METHODS: PLRI was artificially created in 7 cadaveric elbows, and double-strand LUCL reconstruction was performed...
October 10, 2016: Journal of Shoulder and Elbow Surgery
Enrique Ruiz-Trejo, Milla Puolamaa, Brian Sum, Farid Tariq, Vladimir Yufit, Nigel P Brandon
A simple chemical bath deposition is used to coat a complex porous ceramic scaffold with a conformal Ni layer. The resulting composite is used as a solid oxide fuel cell electrode, and its electrochemical response is measured in humidified hydrogen. X-ray tomography is used to determine the microstructural characteristics of the uncoated and Ni-coated porous structure, which include the surface area to total volume, the radial pore size, and the size of the necks between the pores.
October 14, 2016: ChemSusChem
Tsukasa Kojima, Hidetake Yabuuchi, Hiroshi Narita, Seiji Kumazawa, Yuzo Yamasaki, Yuki Yano, Noriyuki Sakai, Yoichi Kurihara, Kiyoshi Hisada, Masafumi Masaki, Hiroshi Kimura
OBJECTIVE: To investigate the efficacy of the radial acquisition regime (RADAR) for acquiring head and neck MR images. METHODS: 15 healthy volunteers underwent imaging with 4 sequences [fast spin echo T2 weighted imaging (FSE-T2WI), RADAR T2 weighted imaging (RADAR-T2WI), single-shot echo planar imaging diffusion-weighted imaging (SS-EPI-DWI) and RADAR diffusion-weighted imaging (RADAR-DWI)]. Both standard images and images during periodic mouth motion were acquired...
November 2016: British Journal of Radiology
Grzegorz Wysiadecki, Michał Polguj, Robert Haładaj, Mirosław Topol
A low origin of the radial artery is a rare anatomical variation, with the incidence estimated at 0.2 %. This report presents a previously unrecorded case of an unusual distal origin of the radial artery, co-occurring with a double recurrent radial artery. The radial artery arose under the pronator teres muscle, 76 mm below the intercondylar line of the humerus. After emerging from under the tendon of the pronator teres muscle, the radial artery took a typical course and terminated in the deep palmar arch...
September 15, 2016: Anatomical Science International
Salvatore Bisicchia, Cosimo Tudisco
Fracture-dislocations of the elbow can be difficult to treat, with unsatisfactory results in some cases. In general, it is preferable to preserve the fractured radial head when possible, but some patients present a unique treatment challenge because of extremely comminuted fractures and bone loss. In these cases, the only options available are radial head prosthesis or allograft. The authors present a case of a 45-year-old man with a fracture-dislocation of the left elbow that was treated with an allograft of the radial head and neck because of extreme comminution of the fracture...
September 8, 2016: Orthopedics
Christopher D Souder, Joanna H Roocroft, Eric W Edmonds
BACKGROUND: The radiocapitellar line (RCL) was originally described for evaluation of the alignment of the RC joint on lateral images of the elbow. Although, many authors have translated the utilization of RCL into coronal imaging, previous studies have not been performed to confirm validity. The purpose of this paper was to identify an accurate way of evaluating pediatric RC alignment in the coronal plane. METHODS: Thirty-seven anteroposterior (AP) radiographs of 37 children were evaluated to determine the position of the RC joint in the coronal plane...
September 3, 2016: Journal of Pediatric Orthopedics
Ze-Qing Huang, Xiao-Hui Zheng, Xiang Yu, Chong-Zhi Ou-Yang
: The radiocapitellar line (RCL) has long been used for the radiographic evaluation of elbow injuries in children. However, the utility of the RCL remains limited because the RCL does not always intersect the ossified capitellum centrically. To explore the eccentric rule of the RCL in young children, this study sought to evaluate how the RCL eccentric distance (ED) relative to the center point of the ossific capitellum changes with age. In 1022 children with normal elbows, aged between 1 and 10 years, the RCLs were drawn along the radial neck on the elbow anteroposterior (AP) and lateral radiographs by two orthopedic surgeons blinded to the study...
September 3, 2016: Journal of Pediatric Orthopedics. Part B
Christoph E Albers, Andrea Schwarz, Markus S Hanke, Karl-Philipp Kienle, Stefan Werlen, Klaus A Siebenrock
BACKGROUND: Although the etiology of primary femoroacetabular impingement (FAI) is considered developmental, the underlying pathogenic mechanisms remain poorly understood. In particular, research identifying etiologic factors associated with pincer FAI is limited. Knowledge of the physiologic growth patterns of the acetabulum during skeletal maturation might allow conclusions on deviations from normal development that could contribute to pincer-related pathomorphologies. QUESTIONS/PURPOSES: In a population of healthy children, we asked if there were any differences related to skeletal maturation with regard to (1) acetabular version; (2) acetabular depth/width ratio; and (3) femoral head coverage in the same children as assessed by MRIs obtained 1 year apart...
September 1, 2016: Clinical Orthopaedics and related Research
Markus S Hanke, Simon D Steppacher, Helen Anwander, Stefan Werlen, Klaus A Siebenrock, Moritz Tannast
BACKGROUND: Magnetic resonance arthrogram (MRA) with radial cuts is presently the best available preoperative imaging study to evaluate chondrolabral lesions in the setting of femoroacetabular impingement (FAI). Existing followup studies for surgical treatment of FAI have evaluated predictors of treatment failure based on preoperative clinical examination, intraoperative findings, and conventional radiography. However, to our knowledge, no study has examined whether any preoperative findings on MRA images might be associated with failure of surgical treatment of FAI in the long term...
August 31, 2016: Clinical Orthopaedics and related Research
Joshua J DeSerres, Brittany R Barber, Hadi Seikaly, Jeffrey R Harris, Daniel A O'Connell
Free tissue transfer has become the mainstay of head and neck cancer (HNC) reconstructive surgery. The objective of the study is to examine the efficacy of the Harmonic Scalpel (HS) Shears on free flap elevation time and complication rates after HNC reconstruction compared with traditional electrocautery. A retrospective review of 215 HNC patients undergoing surgical ablation and free flap reconstruction from January 2010 to April 2013 at the University of Alberta Hospital was undertaken. All patients requiring free flap reconstruction with radial forearm free flap or fibula free flap were included...
May 2016: Plastic and Reconstructive Surgery. Global Open
Vasco V Mascarenhas, Paulo Rego, Pedro Dantas, Augusto Gaspar, Francisco Soldado, José G Consciência
OBJECTIVE: Our objectives were to use 3D computed tomography (CT) to define head-neck morphologic gender-specific and normative parameters in asymptomatic individuals and use the omega angle (Ω°) to provide quantification data on the location and radial extension of a cam deformity. METHODS: We prospectively included 350 individuals and evaluated 188 asymptomatic hips that underwent semiautomated CT analysis. Different thresholds of alpha angle (α°) were considered in order to analyze cam morphology and determine Ω°...
August 30, 2016: European Radiology
John W Karl, Lauren H Redler, Peter Tang
BACKGROUND: Long-term outcomes of radial head resection for radial head fracture have shown mixed outcomes, depending on the integrity of the soft-tissue stabilizers of the elbow, forearm, and wrist. METHODS: We report a case of a symptomatic delayed proximal migration of the radius after radial head excision for radial neck nonunion which was managed with a staged radial head replacement. Informed consent was obtained from the individual in this case report. RESULTS: At 7 months after radial head replacement, the patient had 90 degrees of forearm supination and 85 degrees of pronation...
2016: Iowa Orthopaedic Journal
Avtandil M Babunashvili, Samir B Pancholy, Dmitriy S Kartashov
We report a new technique for treatment of radial artery pseudoaneurysm (RAP) caused by transradial access (TRA) for coronary angiography. Traditional extrinsic compression with radial flow cessation leads to a local milieu likely associated with an increase in probability of radial artery occlusion (RAO). Our technique involves obtaining ipsilateral radial artery access distal to the neck of the RAP followed by a prolonged sheath dwell time covering the neck of the RAP which allows the RAP sac to thrombose and maintains radial artery lumen patency...
August 16, 2016: Catheterization and Cardiovascular Interventions
K-L Bruchhage, A Leichtle, B Wollenberg
BACKGROUND: Reconstruction of defects after extirpation of head and neck cancer is a highly challenging and complex surgical undertaking. Commonly used techniques, e.g., the radial forearm flap, the anterior lateral thigh flap, or flaps harvested from the chest-deltopectoral or pectoralis major-share numerous disadvantages, such as donor-site morbidity, poor color matching for cutaneous reconstruction, and excessive tissue bulk. The use of a supraclavicular artery island flap is a long-forgotten but increasingly popular option for reconstruction in the head and neck area...
August 15, 2016: HNO
J M Klefot, J L Murphy, K D Donohue, B F O'Hara, M E Lhamon, J M Bewley
Limited research has been conducted to assess sleep in production livestock primarily because of limitations with monitoring capabilities. Consequently, biological understanding of production circumstances and facility options that affect sleep is limited. The objective of this study was to assess if data collected from a proof-of-concept, noninvasive 3-axis accelerometer device are correlated with sleep and wake-like behaviors in dairy cattle. Four Holstein dairy cows housed at the University of Kentucky Coldstream Dairy in September 2013 were visually observed for 2 consecutive 24-h periods...
October 2016: Journal of Dairy Science
Jeffrey Harris, Hani Almarzouki, Brittany Barber, Rufus Scrimger, Jacques Romney, Daniel O'Connell, Mark Urken, Hadi Seikaly
PURPOSE: The incidence of hypothyroidism after radiation therapy for head and neck cancer (HNC) has been found to be ≤53%. Medical treatment of hypothyroidism can be costly and difficult to titrate. The aim of the present study was to assess the feasibility of free thyroid transfer as a strategy for the prevention of radiation-induced damage to the thyroid gland during radiation therapy for HNC. METHODS AND MATERIALS: A prospective feasibility study was performed involving 10 patients with a new diagnosis of advanced HNC undergoing ablative surgery, radial forearm free-tissue transfer reconstruction, and postoperative adjuvant radiation therapy...
September 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Conor M Devine, Timothy M Haffey, Samuel Trosman, Michael A Fritz
OBJECTIVES/HYPOTHESIS: To show that, for patients with few medical comorbidities and at low risk for airway compromise or fistula formation, early discharge after free tissue transfer for head and neck reconstruction is a safe and viable option. STUDY DESIGN: Retrospective chart review. METHODS: A cohort of patients who underwent free tissue transfer for head and neck reconstruction between February 2010 and December 2014 and who were discharged from the hospital by postoperative day 3 were reviewed...
July 26, 2016: Laryngoscope
Brianna N Harris, Arnaud F Bewley
PURPOSE OF REVIEW: Fasciocutaneous and osteocutaneous free flap reconstruction has significantly changed the way surgeons reconstruct defects following ablation of head and neck tumors. Over time, success rates of free flaps have approached 98%, allowing surgeons to shift their focus to minimizing morbidities associated with the donor sites. The radial forearm, anterolateral thigh, and fibula free flaps are the three most commonly used flaps in head and neck reconstruction, and therefore each of their advantages and associated morbidities are of particular interest...
October 2016: Current Opinion in Otolaryngology & Head and Neck Surgery
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