Chinese Med J Peking
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Chinese Med J Peking · Jan 2014
Two congenital coronary abnormalities affecting heart function: anomalous origin of the left coronary artery from the pulmonary artery and congenital left main coronary artery atresia.
The anomalous origin of the left coronary artery (LCA) from the pulmonary artery (ALCAPA) and congenital left main coronary artery atresia (CLMCA-A) are two kinds of very rare coronary heart diseases which affect heart function profoundly. This study aimed to retrospectively illustrate the clinical features and therapy experience of ALCAPA and CLMCA-A patients. ⋯ ALCAPA and CLMCA-A are two rare coronary artery abnormalities that affect cardiac function in infants and children. In younger patients with cardiomegaly and heart dysfunction these two congenital coronary diseases should be noticed.
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Chinese Med J Peking · Jan 2014
Case ReportsComparisons in finite element analysis of minimally invasive, locking, and non-locking plates systems used in treating calcaneal fractures of Sanders type II and type III.
Calcaneal fractures are relatively common but complex, while the treatment of these fractures is still controversial. The objective of this study was to compare the biomechanical stability of minimally invasive, locking, and non-locking plating systems used for fixing Sanders type II and type III calcaneal fractures. Finite element analysis was used for comparing the three types of plating systems. This study helped in guiding the clinical management of calcaneal fractures. ⋯ The minimally invasive plating method could be a better alternative method in treating Sanders type II and type III calcaneal fractures. The observed stiffness of locking plate was not obviously stronger than unlocked plate.
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Chinese Med J Peking · Jan 2014
Effect of fixing distal radius fracture with volar locking palmar plates while preserving pronator quadratus.
L-shaped incision of pronator quadratus (PQ) muscle along its radial and distal borders was always taken for distal radius fractures reduction and internal fixation. Repair of the PQ muscle was always recommended at the end of operation for some instructive reasons. But repair of PQ is not satisfied because of poor quality of muscle and fascial tissues which may cause pain or impede forearm pronation and supination for post-operative scarring around PQ. Inserting the locking palmar plate to pass under the pronator quadratus muscle and the locking screws are inserted through mini-incisions in pronator quadratus in some patients with distal radius fractures is a reasonable technique which can preserve the pronator quadratus. The purpose of this study was to evaluate and compare the clinical effects after volar plating of the distal radius fractures while preserving the pronator quadratus and pronator quadratus repair. ⋯ Preservation of the pronator quadratus muscle is a satisfactory method for the treatment of majority of the fractures of the distal radius with volar locking palmar plates, as this technique can yield better early wrist function and shorten the rehabilitation.