Chinese Journal of Tissue Engineering Research ›› 2020, Vol. 24 ›› Issue (27): 4328-4332.doi: 10.3969/j.issn.2095-4344.2794

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Absorbable rod or titanium alloy screws for Mason type II radial head fractures

Yang Xiao1, Mei Wei2, Zhang Wei1    

  1. 1Sichuan Provincial People’s Hospital, Chengdu 610072, Sichuan Province, China; 2Chengdu Orthopaedic Hospital, Chengdu 610061, Sichuan Province, China
  • Received:2019-12-23 Revised:2019-12-28 Accepted:2020-02-14 Online:2020-09-28 Published:2020-09-09
  • Contact: Zhang Wei, MD, Associate chief physician, Sichuan Provincial People’s Hospital, Chengdu 610072, Sichuan Province, China
  • About author:Yang Xiao, Master, Associate chief physician, Sichuan Provincial People’s Hospital, Chengdu 610072, Sichuan Province, China
  • Supported by:
    the Key Research & Development Project of Science and Technology Department of Sichuan Province, No. 2019YFS0318; the High Technology Project of Sichuan People’s Hospital

Abstract:

BACKGROUND: At present, open reduction and internal fixation is an effective method for the treatment of Mason type II radial head fracture. The selection of internal fixation includes screws, micro plates, Kirschner wires, absorbable rods or nails. The clinical efficacy reported is inconsistent.

OBJECTIVE: To compare the clinical efficacy of titanium alloy screws or absorbable rod for the internal fixation of Mason type II radial head fractures.

METHODS: Totally 25 patients with radial head fractures were collected from January 2016 to February 2017 in Sichuan Provincial People’s Hospital, including 16 males and 9 females, at the age of 38-61 years. All



patients received open reduction and internal fixation. Of them, 13 cases received titanium alloy screws, and 12 cases received absorbable rod. X-ray images were obtained during follow-up to identify fracture healing time. During the final follow-up, visual analogue score, elbow motion range, Mayo elbow joint function score and Broberg-Morrey scores were compared between the two groups. The study was approved by the Ethics Committee of Sichuan Provincial People’s Hospital·Sichuan Academy of Medical Sciences.

RESULTS AND CONCLUSION: (1) There was no significant difference in fracture healing time between the absorbable rod group (2.35±0.92 months) and titanium alloy screw group (2.10±0.47 months) (P > 0.05). (2) In the final follow-up, there was no significant difference in Mayo elbow joint function score and Broberg-Morrey scores between the two groups (P > 0.05). (3) In the final follow-up, there was no significant difference in elbow flexion, extension, supination, and pronation angle between the two groups (P > 0.05). (4) In the final follow-up, there was no significant difference in visual analogue score between the two groups (P > 0.05). (5) These results indicate that the absorbable rod and titanium alloy screws can obtain satisfactory treatment outcomes for Mason type II radial head fractures. However, the absorbable rod can avoid the secondary operation for removing internal fixators, and the adverse impact of stress shielding.

Key words: absorbable rod, titanium alloy screw, Mason type II radial head fracture, tissue engineering, radius, elbow joint

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