Rehabilitation training of patellar fracture patients guided with biological characteristics of absorbable screws / 中国组织工程研究

ABSTRACT

AIM:The limitation of materials' strength results in the external fixation of patients with patellar fracture following absorbable screw fixation.This study was aimed to guide the patients do progressive rehabilitation and observe the recovery of knee joint function.METHODS:Totally 35 patients with patellar fractures were enrolled from the Sixth People's Hospital in Shanghai Jiao Tong University between June 2004 and June 2006,including 27 cases of transverse fractures and 8 cases of comminuted fractures.They were all treated with BIOFIX self-reinforced poly-lactide absorbable screws,which were produced by Finland BIONX Company.Postoperatively isometric contraction training of quadriceps femoris was followed,and then progressive knee joint range of motion was carried out.The curative effect was evaluated by the recovery of knee joint function and radiograph.Normal knee joint function was taken as excellent effect,while nearly normal knee joint function and slightly poor squatting were taken as good effect.RESULTS:All the patients completed the treatment and rehabilitation,followed up for no less than 12 months,with a mean of 22 months.The average healing time was 6 weeks,excellent result cases were seen in 29 patients and good in 6.There was two cases occurred postoperative complications(wound swelling).CONCLUSION:Self-reinforced poly-lactide absorbable screws for treatment of patellar fractures and appropriate postoperative rehabilitation is believed to prevent the second operations.