PURPOSE To evaluate the radiologic and clinical results of percutaneous transverse fixation with K-wires for 5th metacarpal neck fracture. MATERIALS AND METHODS Between January 2007 and September 2010, 18 patients with a 5th metacarpal neck fracture, who underwent operative treatment, were included in this study. The surgical method was percutaneous transverse fixation using K-wires. We evaluated fracture angulation in oblique radiographs preoperatively, postoperatively, and at final follow-up, and used SPSS to perform statistical analysis. We also performed clinical evaluation using the Disabilities of the Arm, Shoulder and Hand (DASH) score. RESULTS All of the 18 cases were completely united, and in the oblique radiographs, the angulation was corrected from 50.69degrees to 11.68degrees. The average difference between postoperative and final follow-up angulations was 0.14degrees, which was statistically insignificant. Clinically, the DASH score was 1.030 and no complications were observed. CONCLUSION Percutaneous transverse fixation using K-wires could be one of the best ways to treat a 5th metacarpal neck fracture because of its simple method and low rate of complications.
We report an unusual case of Kirschner wire migration from the proximal humerus into the thoracic cavity and diaphragm which induced pneumothorax and hemoperitoneum. An 81-year-old woman admitted to the emergency room due to sudden onset of dyspnea. X-rays showed pneumothorax and old proximal humerus fracture fixed with rush pins and K-wires. One of K-wires was seen on the diaphragm level at posterior gutter of chest wall. Through the abdomen, K-wire was removed from the diaphragm and a chest tube was inserted. The potential for K-wires to migrate must be recognized, and frequent postoperative radiographic studies have to be performed for the early detection of loosening and migration. It appears that if K-wires are used for fixation of proximal humerus, the lateral ends must be bent to prevent medial migration, and when the desired therapeutic goals have been achieved, these pins have to be susbsequently removed as soon as possible.
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