ABSTRACT
Objective To investigate the clinical effect of distal radioulnar ligament reconstruction by autologous tendon pal‐maris longus transplantation under arthroscopic assistance in treating chronic instability of the distal radioulnar joint .Methods Seven patients with chronic instability of the distal radioulnar joint after failure of conservation therapy were definitely diagnosed by the wrist joint exploration .Then the autologous tendon palmaris longus was taken for conducting the anatomical reconstruction of distal radioulnar ligament ;the average follow up was 12 months .The preoperative and postoperative grip strength and the motion of wrist joint were recorded ;the pain status of the wrist joint was evaluated by using the visual analogue scale (VAS) ,and the wrist function status was evaluated by using the Disabilities of the Arm ,Shoulder and Hand(DASH) and the Modified Mayo Wrist Score (MMWS) .Results The average VAS score of the rist joint motion was recovered from (7 ± 2) points before operation to (3 ± 3) points after operation ,the MMWS score was improved from preoperative (50 ± 9) points to postoperative (83 ± 11) points ,the DASH score was decreased significantly from preoperative (37 ± 15) points to postoperative (16 ± 10) points ,the grip strength was improved from preoperative 84 .5 ± 16 .0 to postoperative 93 .4 ± 11 .0 ,the differences were statistically significant .The mean range of motion(ROM ) in flexion/extension of the wrist was increased from preoperative 93 .5% ± 6 .0% to postoperative 96 .4% ± 3 .0% ,the ROM in pronation/supination of the forearm was increased from preoperative 92 .6% ± 7 .0% to postoperative 97 .2% ± 5 .0% ,but the differences were not statistically significant .Conclusion Under arthroscopic assistance ,the anatomical reconstruc‐tion of the distal radioulnar ligaments is an effective treatment method for treating chronic distal radioulnar joint instability ,its short term follow up has satisfactory effect .
ABSTRACT
Objective To observe the therapeutic effects of UPASS-Ⅱ minimally invasive spinal system percutaneous pedicle screws internal fixation treating thoracolumbar fracture .Methods From May 2011 to December 2012 ,26 patients(observing group) were sufferred from thoracolumbar fracture without neural impairment were treated with UPASS-Ⅱ minimally invasive spinal sys-tem percutaneous pedicle screws internal fixation ,and were compared with other 26 cases(control group) adopted the treatment of conventional open pedicle screws internal fixation in the same period .Results All patients were followed up more than 6 months (mean 9 .2 months) ,the comparison of Cobb′s angle ,anterior vertebra height ,VAS ,JOA score and ODI between pre and post oper-ation were all significantly different in both group(P<0 .01) ,but the operation time and length of stay in the hospital in observing group were significantly shorter than that in control group (P<0 .05) ,moreover ,the amount of operative bleeding and drainage of post operation in observing group decreased obviously than that in control group (P<0 .01) .Conclusion This study shows that UPASS-Ⅱ minimally invasive spinal system percutaneous pedicle screw internal fixation treating thoraco-lumbar fracture is a safe and effective treatment strategy in selected patients .
ABSTRACT
Objective:To construct an eukaryotic expression recombinant plasmid containing functional regeion of LIM mineral- ization protein-3.Methods:Functional regeion of LIM mineralization protein-3 was amplified by PCR with primers,then inserted into pEGFP-N1 to generate eukaryotic expression plasmid pEGFP-N1-LMP-3.The recombinant plasmid was identified by re- striction enzyme and sequencing.Results:The gene fragment encoding LMP-3 was amplified correctly by PCR.Enzyme diges- tion and identical sequencing showed that the recombinant eukaryotic expression plasmid was right constructed.Conclusion: Recombinant eukaryotic expression plasmid of LMP-3 has been successfully obtained,suggesting a foundation for the further studies on the bone formation.