Journal List > J Korean Foot Ankle Soc > v.23(3) > 1133314

Oh, Lee, Kim, and Lee: Surgical Treatment of Calcaneal Fractures of Sanders Type II and III by A Minimally Invasive Technique with 6.5 mm Cancellous Screw

Abstract

Purpose

This study evaluated the clinical and radiological results of 6.5 mm full threaded cancellous bone screw fixation of calcaneal fractures.

Materials and Methods

Thirty seven patients diagnosed with Sanders type II or III calcaneal fractures, who underwent open reduction and internal fixation with a 6.5 mm full threaded cancellous bone screw between August 2014 and August 2017, were analyzed. Both the preoperative and postoperative Böhler angle and Gissane angle were measured radiographically. American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot scale on the final follow-up were also assessed.

Results

The mean age of the patients was 52.7 years and the mean follow-up period was 29.5 months. In the Sanders classification, type II and III were 16 and 24 cases, respectively. The Böhler and Gissane angles improved from 21.2° and 122.6° preoperatively to 21.6° and 120.3°, respectively, in the postoperative radiographs. All cases achieved bony union, and the AOFAS ankle-hindfoot scale was 90.7 and 91.3 in Sanders type II and III, respectively, at the final follow-up.

Conclusion

The treatment of calcaneal fractures using a 6.5 mm full threaded cancellous bone screw can reduce the complications with minimally invasive surgery and achieve firm fixation.

Figures and Tables

Figure 1

Measurement of calcaneal height and width in X-ray. (A) Calcaneal height is measured by the line drawn from the superior point of the posterior facet to anterior point of lateral process of tuberosity in lateral view. (B) Calcaneal width is measured by the line drawn from calcaneus medial groove to peroneus tubercle in axial view.

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Figure 2

Postoperative images show that 4.0 mm cortical screws were used to fix the posterior articular surface in the transverse direction. After the reduction of the calcaneal fracture, a 6.5 mm cancellous bone full threaded screw was used to fix from the superior and inferior calcaneus tubercle to articular facet. (A) Lateral view. (B) Axial view.

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Table 1

Comparison among Preoperative, Postoperative and Final Follow-up Bohler and Gissane Angles in Calcaneal Fractures

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Values are presented as mean±standard deviation. There was no statistical significant differences between groups with respect to the examined variables, p>0.05.

*Comparison between preoperative and postoperative Böhler and Gissane angles. Comparison bestween postoperative and final follow-up Böhler and Gissane angles.

Table 2

Comparison among Preoperative, Postoperative and Final Follow-up Calcaneal Width and Height

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Values are presented as mean±standard deviation.

*Comparison between preoperative and postoperative Calcaneal width and height. Comparison bestween postoperative and final follow-up Calcaneal width and height.

Notes

Financial support None.

Conflict of interest None.

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Myoung Jin Lee
https://orcid.org/0000-0002-4388-7196

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