Objective        To investigate the effect of surgical treatment of tibial intercondylar eminence fracture by reduction and internal fixation within osteoepiphysis under arthroscopy.       Methods      Retrospective analysis was performed in eleven teenagers (eight males and three females

with a mean age of 12.9±2.1 years old) with tibial intercondylar eminence fracture who were treated by internal fixation under arthroscopy in the center from 2007 to 2010. Clinical data were collected from outpatient and telephone follow-up from 6 months to 2 years after the surgery. Nine patients received internal fixation removal and re-exploration under arthroscopy. The therapeutic effect was evaluated based on X-ray examination and Lysholm knee score.      Results      After the surgery

all the patients healed well with quick recovery of knee function and no complications such as fixation fracture

knee instability and knee dysfunction. The average Lysholm knee scores before and after operation were 66.1 and 96.0

respectively.       Conclusion      Treatment of tibial intercondylar eminence fracture by internal fixation under arthroscopy is effective for diagnosis and recovery of the fracture

and can also avoid injury of tibial growth plate in a long term.