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Topic:

Limb Deformity

Issue:

​

Category:

​

Title:

Robot-assisted Temporary Hemiepiphysiodesis With Eight-plates for Lower Extremity Deformities in Children

Author:

Liang, Mingqian MD; Zhang, Xuejun MD; Liu, Haonan MD; Gao, Rongxuan MD; Guo, Dong MD; Yao, Ziming MD

Journal:

Journal of Pediatric Orthopaedics

Date:

April 2024

Reference:

44(4):p 260-266, DOI: 10.1097/BPO.0000000000002631

Level Of Evidence:

III

# of Patients:

55

Study Type:

Retrospective comparative study

Location:

Single-center study, China

Summary:

This study compares robot-assisted versus traditional freehand methods for temporary hemiepiphysiodesis with eight-plates in treating lower extremity deformities (LEDs). Radiographic parameters, complications, and deformity correction outcomes were evaluated.

Methods:

Patients treated between January 2019 and February 2022 were divided into robot-assisted and freehand groups. Outcome measures included fluoroscopy time, operation time, screw placement accuracy (coronal entering point [CEP], sagittal entering point [SEP], angle between the screw and epiphyseal plate [ASEP]), and deformity correction outcomes (LLD and femorotibial angle [FTA]). Patients were followed for 12 to 24 months.

Exclusions:

Not specified

Results:

Screw Placement Accuracy: No difference in CEP between groups. Robot group had superior SEP (2.96±1.60 mm vs. 6.47±2.80 mm) and ASEP (3.46°±1.58° vs. 6.92°±3.92°, P<0.001). Correction Outcomes: Similar improvements in LLD and FTA between groups at last follow-up. Complications: Lower incidence in the robot group (0/27 vs. 5/28, P<0.05).

Conclusions:

Robot-assisted temporary hemiepiphysiodesis with eight-plates is safe, effective, and improves screw placement accuracy compared to freehand methods. Although correction outcomes for LLD and angular deformities are similar, robotic assistance reduces screw dislocation and other complications.

Relevance:

Limitations:

Perspective:

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