Chinese Journal of Tissue Engineering Research ›› 2020, Vol. 24 ›› Issue (6): 839-842.doi: 10.3969/j.issn.2095-4344.2426

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Effectiveness and safety of modified sliding chute bone graft plus hollow screw fixation for tibiotalar joint fusion

Han Xinguang1, Yin Zhijiang2, Wang Xiangcheng2, Yang Chenyu2, Shang Jian1   

  1. 1First Department of Orthopedics, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China; 2Second Department of Orthopedics, the First Hospital of Qiqihar, Qiqihar 161000, Heilongjiang Province, China
  • Received:2019-04-20 Revised:2019-04-20 Accepted:2019-06-14 Online:2020-02-28 Published:2020-01-16
  • Contact: Shang Jian, MD, Chief physician, First Department of Orthopedics, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
  • About author:Han Xinguang, MD, Associate chief physician, First Department of Orthopedics, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang Province, China
  • Supported by:
    the Research Project of Education Department of Heilongjiang Province, No. 12541359

Abstract:

BACKGROUND: Tibiotalar joint fusion ways are various, and it is a difficulty in necrotic tibiotalar joint fusion. There are few comparative studies on the repair outcomes of each implant.

OBJECTIVE: To compare the effectiveness and safety of modified sliding chute bone graft plus hollow screw fixation with simple screw internal fixation and plate internal fixation for tibiotalar joint fusion.

METHODS: Fifty-six patients who underwent tibiotalar joint fusion were included, including 16 cases of screw fixation, 22 cases of plate fixation and 18 cases of modified sliding chute bone graft plus hollow screw fixation. Ankle function was compared after simple screw internal fixation, plate internal fixation and modified sliding chute bone graft plus hollow screw fixation. The ankle foot scoring system of American Orthopedic Foot and Ankle Society was used for evaluation. At the same time, the operation time, brace fixation time and fusion time of the three surgical methods were compared. The gait at the last follow-up was compared. The average follow-up time was 2.4 years. The experiment met the ethical requirements of the First Affiliated Hospital of Harbin Medical University. All patients provided written informed consent for study participation.

RESULTS AND CONCLUSION: (1) All the patients obtained exactly bony fusion. Compared with the plate fixation group, the slide bone grafting group had significant advantages in the fusion time and the last gait (P < 0.05), and the screw fixation group had significant advantages in the operation time (P < 0.05). (2) Using the ankle foot scoring system of American Orthopedic Foot and Ankle society, there was no significant difference between the sliding chute bone graft group and the plate fixation group, but both groups were significantly better than the screw fixation group (P < 0.05). (3) Adverse events had not been found in each group. (4) These results suggest that modified sliding chute bone graft plus hollow screw fixation for ankle joint fusion can effectively improve ankle joint fusion rate compared with single screw fixation, which is effective and safe.

Key words: sliding chute bone graft, modified, tibiotalar joint, fusion, hollow screw, plate, talus osteonecrosis, fixation outcomes, ankle function

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