ABSTRACT
Objective@#A retrospective analysis of audiologic outcome and graft take rate on post-tympanoplasty with different middle ear mucosal conditions in wet ear. @*Method@#According to the characteristics of middle ear mucosal condition and residual eardrum, 80 cases with wet ear of chronic suppurative otitis media were divided into the hydrocele group, the swelling group and the granulation group. The factors in different groups, including gender, age, disease course, sides, size and location of perforations, destruction of ossicular chain and reconstruction methods were analyzed. Moreover, postoperative hearing improvement and graft take rate were compared among the three groups. @*Result@#There was no significant difference in gender, age, disease course, sides, size and location of perforations among the hydrocele group, the swelling group and the granulation group （P>0.05）. Overall, the postoperative average Air-Bone Gaps（ABG） were reduced in all wet ear patients after surgery （P<0.01）. The ABG was decreased from （25.5 ± 10.8） dB to（15.4 ± 9.4） dB in the hydrocele group, and decreased from （27.6 ± 8.7） dB to （15.2 ± 9.6） dB in the swelling group, and from （29.5 ± 7.7） dB to （17.2 ± 17.2） dB in the granulation group. The graft take rates were 90.0% in totally. There were no significant difference in graft take rates among the three groups, and 84.6% in the hydrocele group, 93.3% in the swelling group and 100.0% in the swelling group（P>0.05）. @*Conclusion@#Wet ear is not an absolute contraindication of tympanoplasty for chronic suppurative otitis media. Whether there was effusion, swelling or granulomatous hyperplasia in the tympanoplasty, the patients'hearing improved significantly after tympanoplasty, and the healing rate of the tympanoplasty did not decrease. Further basic and clinical studies are needed to standardize the timing of wet ear surgery, clarify the operative contraindication and elucidate the pathophysiological mechanism of eardrum healing.
ABSTRACT
A retrospective analysis of audiologic outcome and graft take rate on post-tympanoplasty with different middle ear mucosal conditions in wet ear. According to the characteristics of middle ear mucosal condition and residual eardrum, 80 cases with wet ear of chronic suppurative otitis media were divided into the hydrocele group, the swelling group and the granulation group. The factors in different groups, including gender, age, disease course, sides, size and location of perforations, destruction of ossicular chain and reconstruction methods were analyzed. Moreover, postoperative hearing improvement and graft take rate were compared among the three groups. There was no significant difference in gender, age, disease course, sides, size and location of perforations among the hydrocele group, the swelling group and the granulation group （>0.05）. Overall, the postoperative average Air-Bone Gaps（ABG） were reduced in all wet ear patients after surgery （0.05）. Wet ear is not an absolute contraindication of tympanoplasty for chronic suppurative otitis media. Whether there was effusion, swelling or granulomatous hyperplasia in the tympanoplasty, the patients'hearing improved significantly after tympanoplasty, and the healing rate of the tympanoplasty did not decrease. Further basic and clinical studies are needed to standardize the timing of wet ear surgery, clarify the operative contraindication and elucidate the pathophysiological mechanism of eardrum healing.
ABSTRACT
A new type of fluorescent gold nanoclusters (MU-Au NCs) was prepared by hydrothermal synthesis method using ammonium benzoate murexide (MU) as reducing agent and protecting agent.The synthesis method was simple and rapid.Based on the fluorescence quenching ability of spermine, a turn off type fluorescence analysis method was established for rapid and ultra sensitive detection of spermine.The linear range for detection of spermine was 0.003-300 μmol/L and the detection limit was 1 nmol/L (S/N=3).The established analytical method of spermine provided theoretical basis and reference for construction of spermine biosensor and actual sample detection.
ABSTRACT
Objective To introduce a new technique of treating tibial spinal fractures in children under arthroscope, and to assess its clinical outcomes. Methods From February 2001 to July 2003, 6 child patients with tibial spinal fracture were treated arthroscopically. The reduction and fixation were completed under the arthroscope. The wire was linked with the suture outside the joint, and then was pulled into the joint to fix the fracture fragment through the fundus of anterior cruciate ligament (ACL). Results The patients were followed up for 6 to 20 months. All the fractures healed without displacement 4 weeks after operation. 3 months postoperatively, the motion range of the knee returned to normal, and no knee instability was observed. The results of ADT (anterior drawer test) and Lachmanns sign were negative. Conclusion This technique is the first choice in treatment of tibial spinal fracture in children, because it facilitates the diagnosis and treatment of complicated knee problems and provides accurate reduction and reliable fixation. Besides, it is minimally invasive, simple and convenient.
ABSTRACT
Objective To evaluate the clinical value of application of supracondylar locked intramedullary nail under arthroscope for supracondylar femoral fractures. Methods Sixteen patients with supracondylar femoral fracture were treated by supracondylar locked intramedullary nail. After mini-incision open reductions were completed, the nails were inserted retrogradely into femoral intercondylar notch under arthroscope. Results Bony union was obtained in all the patients within 3 months. Follow-up for 6～18 months showed ranges of motion (ROM) of their knee joints were 110?or above. Conclusions Application of this nail for supracondylar femoral fracture is characterized by mini-invasion, reliability and rapid recovery. There is no need for traditional open operations on the knee joint, and no need for external fixation.