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. 2024 Mar 1;10(1):8.
doi: 10.1186/s41205-024-00205-2.

The clinical value of preoperative 3D planning and 3D surgical guides for Imhäuser osteotomy in slipped capital femoral epipysis: a retrospective study

Vera Lagerburg  1 , Michelle van den Boorn  2 , Sigrid Vorrink  3 , Ihsane Amajjar  3 , Melinda M E H Witbreuk  3
Affiliations

The clinical value of preoperative 3D planning and 3D surgical guides for Imhäuser osteotomy in slipped capital femoral epipysis: a retrospective study

Vera Lagerburg et al. 3D Print Med. .

Abstract

Background: Accurate repositioning of the femoral head in patients with Slipped Capital Femoral Epiphysis (SCFE) undergoing Imhäuser osteotomy is very challenging. The objective of this study is to determine if preoperative 3D planning and a 3D-printed surgical guide improve the accuracy of the placement of the femoral head.

Methods: This retrospective study compared outcome parameters of patients who underwent a classic Imhäuser osteotomy from 2009 to 2013 with those who underwent an Imhäuser osteotomy using 3D preoperative planning and 3D-printed surgical guides from 2014 to 2021. The primary endpoint was improvement in Range of Motion (ROM) of the hip. Secondary outcomes were radiographic improvement (Southwick angle), patient-reported clinical outcomes regarding hip and psychosocial complaints assessed with two questionnaires and duration of surgery.

Results: In the 14 patients of the 3D group radiographic improvement was slightly greater and duration of surgery was slightly shorter than in the 7 patients of the classis Imhäuser group. No difference was found in the ROM, and patient reported clinical outcomes were slightly less favourable.

Conclusions: Surprisingly we didn't find a significant difference between the two groups. Further research on the use of 3D planning an 3D-printed surgical guides is needed.

Trial registration: Approval for this study was obtained of the local ethics committees of both hospitals.

Keywords: 3D planning; 3D printed surgical guide; Imhäuser osteotomy; Slipped capital femoral epiphysis.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
X-ray of a patient with on the left of the image the healthy hip and on the right the affected hip with a pin in-situ
Fig. 2
Fig. 2
(a) 3D segmented model of a healthy (left) and affected femur of a patient, (b) the affected femur and its surgical guide, (c) the affected femur with the k-wires in place and the wedge removed, (d) the affected femur with a titanium plate positioned and (e) 3D segmented model of a healthy (left) and operated femur with the plate in place
Fig. 3
Fig. 3
Example of an X-ray with the measurement of the Southwick angle
See this image and copyright information in PMC

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