3D-printed models improve surgical planning for correction of severe postburn ankle contracture with an external fixator.

Youbai Chen; Zehao Niu; Weiqian Jiang; Ran Tao; Yonghong Lei; Lingli Guo; Kexue Zhang; Wensen Xia; Baoqiang Song; Luyu Huang; Qixu Zhang; Yan Han

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3D-printed models improve surgical planning for correction of severe postburn ankle contracture with an external fixator.

Author: Youbai CHEN ¹ ; Zehao NIU ² ; Weiqian JIANG ¹ ; Ran TAO ¹ ; Yonghong LEI ¹ ; Lingli GUO ¹ ; Kexue ZHANG ³ ; Wensen XIA ⁴ ; Baoqiang SONG ⁴ ; Luyu HUANG ⁵ ; Qixu ZHANG ⁶ ; Yan HAN ⁷
Author Information

1. Department of Plastic and Reconstructive Surgery, the First Medical Center, Chinese PLA General Hospital, Beijing 100853, China.
2. Graduate School, Medical School of Chinese PLA, Beijing 100853, China.
3. Department of Pediatric Orthopedics, the First Medical Center, Chinese PLA General Hospital, Beijing 100853, China.
4. Department of Plastic Surgery, Xijing Hospital, Air Force Medical University, Xi'an 710038, China.
5. Department of Orthopedics, Xijing Hospital, Air Force Medical University, Xi'an 710038, China.
6. Department of Plastic Surgery, the University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA.
7. Department of Plastic and Reconstructive Surgery, the First Medical Center, Chinese PLA General Hospital, Beijing 100853, China. 13720086335@163.com.
Publication Type:Journal Article
Keywords: 3D printing; Ankle contracture; Ilizarov; Postburn contracture; Surgical planning
From: Journal of Zhejiang University. Science. B 2021;22(10):866-875
CountryChina
Language:English
Abstract: Gradual distraction with an external fixator is a widely used treatment for severe postburn ankle contracture (SPAC). However, application of external fixators is complex, and conventional two-dimensional (2D) imaging-based surgical planning is not particularly helpful due to a lack of spatial geometry. The purpose of this study was to evaluate the surgical planning process for this procedure with patient-specific three-dimension-printed models (3DPMs). In this study, patients coming from two centers were divided into two cohorts (3DPM group vs. control group) depending on whether a 3DPM was used for preoperative surgical planning. Operation duration, improvement in metatarsal-tibial angle (MTA), range of motion (ROM), the American Orthopedic Foot and Ankle Society (AOFAS) scores, complications, and patient-reported satisfaction were compared between two groups. The 3DPM group had significantly shorter operation duration than the control group ((2.0±0.3) h vs. (3.2±0.3) h,