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Objective To investigate the methods and therapeutic effects in reconstructing and restoring the knee stability of floating knee injury. Methods A total of 38 patients with floating knee injury combined with acute knee instability treated from January 2000 to January 2006 were retrospectively studied to evaluate the efficacy of different procedures. Results All patients were followed up for 1-4 years (mean 1.5 years), which showed fracture healing in all patients. There occurred postoperative wound infection in three, internal fixator loosening in two, anterior cruciate ligament laxity in one and osteearthritis in two. According to Score of Hospital for Special Surgery (HSS) for knee function,the knee function was excellent in 32 patients, good in five and fair in one, with excellence rate of 84%. Conclnsions During the treatment of floating knee injury, attention should not only be paid to the reconstruction of the bone continaity, but also to the restoration of ligaments, meniscus, joint capsule and muscles.
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[Objective]To evaluate the long term effect of the short incision and tenocutaneous relaxing suture to treat the acute closed rupture of the Achilles tendon.[Method]28 cases were treated by short incision and tenocutaneous relaxing suture from 1996-2005,The scar tissue and blood blocks between the ends of ruptured Achilles tendon were first debrided completely,then treated with percutanneous decmpression suture,the duration of follow up ranged from 2 years to 10 years.The treatment outcome were evaluated by Arner-Lindholm evaluation system and the MRI of post operation.2 cases were lost.[Result]According to the Arner-Lindholm evaluation system and the MRI of post operation,the treatment outcome were excellent in 18,and good in 6,with excellent rate of 92%,No complication including nerve injury and infection were found after operation,except 1 rerupture of Achilles tendon was found during the follow up period.The MRI showed the rupture Achilles tendon were repaired and remodeled very well in all cases.[Conclusion]The short incision and tenocutaneous relaxing suture is an ideal surgical technique,with good Clinical result and less Significant complication.
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OBJECTIVE:To establish a method for the determination of the dissolution rates of azithromycin tablets and to compare the dissolution rates among azithromycin tablets that from different manufacturers so as to provide references for clinical medication.METHODS:The concentrations and drug cumulative dissolution rates of a total of 5 batch numbers' azithromycin tablets that from 5 pharmaceutical factories were determined based on the related standard procedure indexed in China Pharmacopoeia(2005 edition),then the dissolution parameters were calculated with Weibull formula.RESULTS:The dissolution rates at 45 min were above 75%,which was up to the standard.The analysis of variance showed that there were significant differences among samples in dissolution parameters(P