نتایج جستجو برای: lunate dislocation

تعداد نتایج: 28909  

2013
QISHUN HUANG QIANG FU HUAIYUAN ZHENG MENG GAN YUXIONG WONG ZHENBING CHEN

The aim of this study was to investigate the feasibility of establishing dog models of lunatomalacia through liquid nitrogen freezing. Twelve adult crossbred dogs were divided into three groups. Unilateral lunates were peeled off the parenchyma and frozen to result in avascular necrosis. They were observed dynamically through X-ray, computed tomography (CT) and magnetic resonance imaging (MRI)....

2005
A. B. DEVILLIERS

Congenital fusion of the lunate [semilunar] bone with the triquetral [cuneiform] is an abnormality which has been considered to be rare, even in negroes, who have been regarded as specially subject (Shanks 1950). Smitham (1948) estimated its incidence in a series of West African natives to be one in seventeen (5’9 per cent), and if his experience is typical it is certainly much commoner in some...

Journal: :EPRA international journal of multidisciplinary research 2022

Introduction: Avascular necrosis of the lunate bone was described in 1910 by Austrian radiologist Robert Kienböck, which is named after him. A mixture different factors such as mechanical, vascular and genetic predisposition may be related to pathogenesis this disease. As for natural evolution disease, failure early diagnosis treatment lead a gradual from stage I IV, causing discomfort patient....

2017
Hiroyuki Obata Tomonori Baba Kentaro Futamura Osamu Obayashi Atsuhiko Mogami Hideki Tsuji Yoshiaki Kurata Kazuo Kaneko

Recent reports suggest the presence of a rare fracture type for which reduction and fixation cannot be achieved with volar locking plate (VLP). In particular, it is difficult to achieve reduction and fixation with volar lunate facet (VLF) fragments present on the volar ulnar aspect of the lunate facet, because of the anatomical structure and biomechanics in this region. Herein, we report two ch...

2001
JAMES H. CALANDRUCCIO

Excision of the proximal carpal row has proven over the past 60 years to be an effective technique for certain disorders of the wrist, including degenerative sequelae of scapholunate ligament dissociation and scaphoid nonunions, Kienböck disease, Preisser disease, and other fracture-dislocations of the wrist. The durability of this procedure may be due to remodeling of the capitate head to the ...

Journal: :The Journal of hand surgery, European volume 2013
K-D Werber R Schmelz C A Peimer S Wagenpfeil H-G Machens J A Lohmeyer

Multiple operations have been proposed to slow the progression of osteonecrosis and secondary carpal damage in Kienböck's disease. To assess the biomechanical changes after capitate shorting, we inserted pressure-testing devices into the carpal and radiocarpal joints in an anatomical study. Pressure sensors were placed into eight thawed non-fixated human cadaver arms to measure the forces trans...

Journal: :The Journal of hand surgery 1990
W B Kleinman C Carroll

Goals of reducing wrist pain, allowing a stable active wrist range of motion, and retarding degenerative changes make arthrodesis of the scapho-trapezio-trapezoid joint a popular treatment for chronic static and dynamic scapho-lunate instability; however, pitfalls and complications have not been well studied. Forty-seven wrists in 46 patients over a 10-year period revealed a complication rate o...

Journal: :Hand clinics 1987
R L Linscheid

Alteration in length of the distal ulna may provide an attractive alternative to more destructive procedures commonly used for the treatment of mechanical and degenerative problems at the distal radioulnar joint. Ulnar recession has shown effectiveness in ulnolunate impingement, triangular fibrocartilage tears, and symptomatic ulnar plus variance. It has also been effective in chondromalacia of...

Journal: :Journal of Orthopaedic & Sports Physical Therapy 2009

Journal: :The Journal of bone and joint surgery. British volume 2005
T-J Cho I H Choi C Y Chung W J Yoo K S Lee

The bicompartmental acetabulum is one of the morphological changes which may be seen in children with Legg-Calvé-Perthes' disease. Three-dimensional CT and MRI were used to analyse the detailed morphology of the acetabulum with special reference to its inner surface, in 16 patients with Perthes' disease and a bicompartmental acetabulum.The bicompartmental appearance was seen on the coronal plan...

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