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[Arthroscopic treatment for tibial eminence avulsion fracture using absorbable double suture anchors]
Qi Wang1, Zhongli Li, Yujie Liu
1Department of Orthopedics, General Hospital of Chinese PLA, Beijing, 100853, PR China.
Objective:
To investigate the outcomes of arthroscopic reduction and internal fixation of tibial eminence avulsion fracture using absorbable double suture anchors.
Methods:
Between February 2007 and August 2009, 18 patients with tibial eminence avulsion fracture were treated with arthroscopic reduction and fixation using absorbable double suture anchors. There were 12 males and 6 females with an average age of 30.6 years (range, 17-48 years). The disease causes were traffic accident injury in 4 cases, sport injury in 8 cases, and falling from height injury in 6 cases; the locations were left side in 7 cases and right side in 11 cases. The results of the anterior drawer test and Lachman test were positive. According to Meyers-McKeever classification, 10 cases were rated as type II, 7 as type III, and 1 as type IV fractures. The time from injury to treatment was 6-20 days (mean, 10.2 days).
Results:
Incision healed primarily. All the patients were followed up 29.1 months (range, 13-43 months). The X-ray films showed good reduction of fracture immediately after operation and fracture healing at 3 months. At the last follow-up, the range of motion of knee was 0-130 degrees. The results of Lachman test and anterior drawer test were negative in 18 cases and 16 cases, respectively; and the results of anterior drawer test were weakly positive in 2 cases. The mean Lysholm score was significantly improved from 53.9 +/- 6.7 preoperatively to 91.6 +/- 4.2 postoperatively (t = 22.100, P = 0.000). The International knee Documentation Committee (IKDC) 2000 subject score improved from 58.1 +/- 3.7 preoperatively to 92.8 +/- 5.9 postoperatively (t = 20.700, P = 0.000).
Conclusion:
Arthroscopic treatment using absorbable double suture anchors for tibial eminence avulsion fracture can provide satisfactory reduction, stable fixation, and good healing of the avulsed fragment, which is a minimally-invasive, simple, and effective treatment for patients with tibial eminence avulsion fracture.