Absorbable screw and metal screw fixation for ankle fractures: comparison of biocompatibility and ankle function

doi:10.3969/j.issn.2095-4344.2016.31.018

Abstract

Abstract:

BACKGROUND: Previous ankle fracture surgery mainly uses the internal fixation materials such as metal screws or Kirschner wire, which can achieve a strong internal fixation, but all need to be taken out in the secondary surgery. In recent years, elastic modulus of biodegradable absorbable screw is identical to that of cancellous bone, and has been widely used in clinic.

OBJECTIVE: To compare the biocompatibility and functional recovery of ankle joint in the repair of ankle fractures with absorbable screws and metal screws.

METHODS: 100 patients with ankle fractures were selected, including 70 males and 30 females, at the age of 19 to 55 years old. Fifty patients were repaired with absorbable screws and fifty patients were repaired with metal screws. Clinical efficacy, Kofoed score, fracture healing time and adverse events were observed between the two groups after repair.

RESULTS AND CONCLUSION: Patients were followed up for over 6 months in both groups, showing good bony callus, good contraposition and alignment at the fracture end. No delayed union or nonunion occurred. The excellent and good rate of clinical effect was 96% and 94% in the absorbable screw group and metal screw group, respectively, showing no significant difference. There was no significant difference in ankle Kofoed score, fracture healing time and incidence of adverse events between the two groups (P > 0.05). These results suggest that absorbable screw fixation for ankle fractures had good biocompatibility and could effectively restore ankle function; its effects are similar to that of traditional metal screws.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

Key words: Absorbable Implants, Fracture Fixation, Internal, Tissue Engineering

CLC Number:

R318

Zhao Xue-zhai, Li Hai-jun, Meng Cai-yun, Li Yan, Zhang Shi-feng, Liu Ming-hui. Absorbable screw and metal screw fixation for ankle fractures: comparison of biocompatibility and ankle function[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(31): 4687-4692.

Figures/Tables 1

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