Abstract
Objective To explore the efficacies of arthroscopic treatment for aged anterior tibial spine fracture with polydioxanone (PDS-II) suture fixation in children and to provide an effective, safe, reliable and mini-invasive treatment for old anterior tibial spine fracture. Methods Retrospective analysis was performed for 7 children with old tibial intercondylar spine fracture from January 2014 to January 2017. There were 5 boys and 2 girls. According to the Meyers & McKeever classification scheme, the fractures were divided into type Ⅱ (n=3) and type Ⅲ (n=4). All of them underwent arthroscopic reduction and PDS-Ⅱ absorbable suture for fixation. Gypsum was removed at 4 weeks postoperatively and functional exercises began. Weight was partially loaded at 6 weeks post-operation and completely loaded at 12 weeks postoperatively. Lysholm knee score was employed for evaluating knee functions before operation and at the last follow-up. At the last follow-up, standing plain films of both lower extremities were taken for recording the length of both lower extremities and the presence of varus deformity of knee joint. Results The average follow-up period was 15.3(12-18) months. All of them achieved primary healing within 3 months. The average motion range of knee joints normalized at 3 months postoperatively. There was no limitation of knee extension/flexion, pain or swelling of knee joint. Both anterior drawer and Lachman tests were negative. The average Lysholm score at the last follow-up was (93.8±3.1) as compared with the preoperative Lysholm score of (42.7±2.7). And the difference was statistically significant (t=63.96, P<0.01). Conclusions Arthroscopic fixation with absorbable suture is both safe and effective for old tibial intercondylar spine fracture in children. As a mini-invasive procedure, its curative effect is satisfactory and wider popularization is recommended. Key words: Arthroscopy; Tibial spine fracture; Old fracture
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