Abstract: Objective:To observe the efficacy of Endobutton combined with the suture in the treatment of Meyers-Mckeever-Zaricnyj type Ⅳ tibial eminence fracture, and to explore the characteristics and treatment methods of Meyers-Mckeever-Zaricnyj type Ⅳ fracture. Methods:The clinical data of seven patients with Meyers-Mckeever-Zaricnyj type Ⅳ tibial eminence fracture were collected;the literature review was performed,and the surgical treatment methods,key points of operation and precautions of the patients were analyzed. Results:After arthroscopic debridement, 3 kinds of main fractures were found:anterior cruciate ligament connected fragment(ACLCF), anterior horn of lateral meniscus connected fragment(ALMCF), and posterior-medial cartilage connected fragment(PMCCF). The PMCCF was first fixed after pre-reduction from back to front and from deep to shallow orders, then the ALMCF and ACLCF were fixed, avoiding the secondary displacement and bone cutting. The follow- up periods of 7 patients were 6-12 months, with an average followed-up period of 7 months. The front drawer test (-), Lachman test (-);the average Lysholm score of patients before operation was less than that in the last follow-up period (P<0.05).The knee joint stability of patients was good, and the knee joint had no movement disorder and infection. Conclusion:The intra-operative reduction order is crucial during the operation of Meyers-Mckeever-Zaricnyj type Ⅳ tibial eminence fracture. Perfect fixation can be achieved by using Endobutton combined with suture.

Key words: arthroscope, Meyers-Mckeever-Zaricnyj type Ⅳ fracture, fracture of spine between tibia and ankle, reduction