[Value of MRI in the diagnosis of radial head fracture with forearm interosseous membrane injury].

OBJECTIVE: To investigate the diagnostic value of MRI in radial head fracture with forearm interosseous membrane injuries. METHODS: From December 2011 to December 2012,26 patients with fractures of capitulum radial in our hospital were collected. There were 15 males and 11 females, ranging in age from 21 to 53 years old,with an average of 37.6 years old. All the patients visited hospital within 72 hours after injuries. X-ray radiography of full ulnar radial length in injured side, CT in injured side (three-dimensional reconstruction if necessary) and MRI (including the elbow and wrist joints) were performed within a week after the injury. The MRI manifestations of the forearm interosseous membrane (with or without damage, the injured location and the injury degree ) and the fractures degree of radial head were observed and compared for the relativity. RESULTS: Radial head fracture from Mason type I to III was associated with the forearm interosseous membrane injury. Radial head fracture degree was positive correlated with forearm interosseous membrane injury degree (P < 0.05). CONCLUSION: Radial head fracture with suspicious forearm interosseous membrane injury is necessary to take MRI for checking for any interosseous membrane injury and injury degree, then choose the right treatment for radial capitulum fracture, only in this way can be helpful for the functional recovery of elbow and forearm.

[Comparison of therapeutic effects of two internal fixations for the treatment of acromioclavicular joint dislocation of Allman Grade III].

OBJECTIVE: To compare therapeutic effects between Kirschner tension band fixation (TBF) and clavicular hook-plate (CHP) for treating acromioclavicular dislocations of Allman Grade III. METHODS: From Jan. 1995 to Dec. 2007, a total of 39 patients who were diagnosed as acromioclavicular joint dislocation of Grade III were treated with Kirschner tension band fixation (TBF 18 patients, 12 patients were male, 6 patients were female, mean age were (27.50 +/- 12.76) years old, average fixation duration were (4.28 +/- 1.27) months) and clavicular hook plate fixation (CHP 21 patients, 18 patients were male, 3 patients were female, mean age were (34.76 +/- 12.39) years old, average fixation during were (8.29 +/- 1.49) months). All the patients were followed up with a mean period over 4 years. The therapeutic effects of the two groups were compared base on complications, Karlsson scores and re-subluxation. RESULTS: The average period from injury to fixation removal was (4.28 +/- 1.27) and (8.29 +/- 1.49) months in TBF and CHP groups respectively, comparison between the two groups, t = -8.951, P < 0.01, there was statistical difference, and the course of disease in TBF group was shorter than that of CHP group. Five patients in TBF group and 1 patient in CHP group had complications (P = 0.077 > 0.05), as well as 3 patients in TBF group and 1 patient in CHP group had re-subluxation (P = 0.318 > 0.05). Karlsson evaluation results:in TBF group, 15 patients got a grade A result, 3 grade B and 0 grade C; and in CHP groups above data was 20, 1 and 0 respectively (P = 0.530 > 0.05). There was no statistical differences between the two groups in evaluation outcomes. CONCLUSION: The two fixation methods are all effective methods to treat Grade III acromioclavicular dislocation of Grade III, and the long-term outcome is satisfactory.