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Madelung deformity is a congenital disorder with the malformation of anterior ulnar bowing of radius and a dorsally protruding ulnar head caused by premature growth disturbance at the medial volar aspect of the distal radius. This report describes a bilateral idiopathic Madelung deformity in a 17-year-old woman treated successfully using reverse wedge osteotomy of the distal radius in a symptomatic left wrist. Reverse wedge osteotomy can orient the radial joint surface while correcting the whole radius length by reversely putting the wedge bone removed from the distal metaphysis of radius, the base of which is cut from the surplus of the radial and dorsal cortical bone in the hypotrophic portion. We corrected the palmar subluxation of the carpus, restored her good function, and relieved her wrist pain.
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http://dx.doi.org/10.1177/2050313X211049898 | DOI Listing |
J Shoulder Elbow Surg
August 2025
Shoulder & Elbow Department, Florida Orthopaedic Institute, Tampa, FL, USA; Department of Orthopaedics and Sports Medicine, University of South Florida Morsani College of Medicine, Tampa, FL, USA. Electronic address:
Background: Baseplate fixation is a crucial step in reverse shoulder arthroplasty and presents a challenge when faced with deformities, or glenoid bone loss. Utilization of newer baseplates that are augmented to account for bone loss may provide equivalent stability to standard baseplates without bone loss. The purpose of this biomechanical study was to compare modern designs by evaluating three baseplates: (1) a one-piece monoblock design (RSP), (2) a two-piece non-locking baseplate (neutral) without bone loss and (3) a two-piece non-locking design with a wedge augment (wedge) with asymmetric bone loss.
View Article and Find Full Text PDFLangmuir
August 2025
School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, P. R. China.
Nanosilica-modified polymer (MNP) flooding significantly enhances crude oil recovery by increasing the sweep efficiency. However, their microscopic displacement mechanisms remain incompletely understood. This study employed a synthesized nanosilica-modified polymer (MNSP) as a displacement agent.
View Article and Find Full Text PDFArch Orthop Trauma Surg
August 2025
Department of Orthopedic Surgery, Ajou University School of Medicine, 164 World Cup-ro, Yeongtong-gu, Suwon-si, 16499, Gyeonggi-do, Republic of Korea.
Introduction: Intramedullary nailing (IMN) is the treatment of choice for femoral shaft fractures with wedge-shaped fragments. However, the management of wedged fragments remains controversial. This study investigated whether wedged fragments affect bone union rates in patients treated with IMN.
View Article and Find Full Text PDFPhys Rev E
June 2025
Hong Kong University of Science and Technology, Department of Physics, Clear Water Bay, Kowloon, Hong Kong SAR.
It has been shown that an anisotropic liquid crystalline (LC) environment can be used to guide the self-propulsion dynamics of dispersed microswimmers, such as bacteria. This type of composite system is named "living nematic." In the dilute limit, bacteria are found to mainly follow the local director field.
View Article and Find Full Text PDFReports (MDPI)
April 2025
Cardiovascular Medicine, Premier Heart Institute, Boonshoft School of Medicine, Wright State University, Dayton, OH 45435, USA.
Takotsubo cardiomyopathy (TCM), an acute stress-induced left ventricular dysfunction, stems from catecholaminergic surges leading to transient myocyte stunning, calcium overload, and microvascular dysregulation. Although most cases resolve spontaneously, roughly 10% deteriorate into fulminant cardiogenic shock, warranting mechanical circulatory support (MCS). Impella provides direct transvalvular LV unloading but carries elevated risks of hemolysis, vascular compromise, and thrombogenicity.
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