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HOME > J Musculoskelet Trauma > Volume 32(1); 2019 > Article
Original Article Results after Less Invasive Locking Plating in Intra-Articular Fractures of the Distal Femur
Sung Hyun Kim, Sung Hyun Yoon, Hee Gon Park, Jae Uk Jung
Journal of Musculoskeletal Trauma 2019;32(1):14-20.
DOI: https://doi.org/10.12671/jkfs.2019.32.1.14
Published online: January 31, 2019
Department of Orthopedic Surgery, Dankook University College of Medicine, Cheonan, Korea. osdku@dankook.ac.kr

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Abstract

PURPOSE
The purpose of this study was to determine the clinical outcomes after a less invasive locking plating technique in intra-articular fractures of the distal femur.
MATERIALS AND METHODS
This was a retrospective 19 case series of patients with distal femoral intraarticular fractures treated with a less invasive locking plating technique in a single center (Dankook University Hospital) from June 2010 to April 2016. Nineteen patients (11 males and 8 females) with a mean age of 55.9 years were enrolled. The functional outcomes were evaluated using the visual analogue scale (VAS), range of knee joint motion (flexion & extension), and Knee Society score. The radiology outcomes were evaluated with parameters measured in a plain radiograph (deviation angle of alignment axis on coronal and sagittal plane, mechanical lateral distal femur angle).
RESULTS
The mean follow-up period was 26.4 months (range, 12–72 months) and the mean duration to union was 15.94 weeks (range, 11–28 weeks). The mean VAS was 1.36 (range, 0–8) and the range of motion of the knee joint was extension 4.73° (range, 0°–30°) and flexion 107.36° (range, 60°–135°). The mean Knee Society score was 85.47 (range, 47–100). The mean deviation angle of the coronal alignment axis was 4.07° (range, 1.3°–8.8°), the mean deviation angle of the sagittal alignment axis was 3.23° (range, 0.7°–7.0°), and the mechanical lateral femoral angle was 87.75° (range, 82.8°–95.5°). Six patients had traumatic osteoarthritis at the final follow-up.
CONCLUSION
The purpose of this study was to evaluate the clinical and radiologic outcomes of intraarticular fractures of the distal femur in patients who underwent an anatomical reduction through an open reduction, and converted to an extra-articular fracture with rigid internal fixation. The results were relatively satisfactory.


J Korean Fract Soc. 2019 Jan;32(1):14-20. Korean.
Published online Jan 25, 2019.
https://doi.org/10.12671/jkfs.2019.32.1.14
Copyright © 2019 The Korean Fracture Society. All rights reserved.
Original Article

Results after Less Invasive Locking Plating in Intra-Articular Fractures of the Distal Femur

Sung Hyun Kim, M.D., Sung Hyun Yoon, M.D., Hee Gon Park, M.D., Ph.D., and Jae Uk Jung, M.D.
    • Department of Orthopedic Surgery, Dankook University College of Medicine, Cheonan, Korea.
  • Correspondence to: Hee Gon Park, M.D., Ph.D. Department of Orthopedic Surgery, Dankook University Hospital, 201 Manghyang-ro, Dongnam-gu, Cheonan 31116, Korea. Tel: +82-41-550-6290, Fax: +82-41-556-0551, Email: osdku@dankook.ac.kr
Received April 29, 2018; Revised September 26, 2018; Accepted October 16, 2018.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

The purpose of this study was to determine the clinical outcomes after a less invasive locking plating technique in intra-articular fractures of the distal femur.

Materials and Methods

This was a retrospective 19 case series of patients with distal femoral intraarticular fractures treated with a less invasive locking plating technique in a single center (Dankook University Hospital) from June 2010 to April 2016. Nineteen patients (11 males and 8 females) with a mean age of 55.9 years were enrolled. The functional outcomes were evaluated using the visual analogue scale (VAS), range of knee joint motion (flexion & extension), and Knee Society score. The radiology outcomes were evaluated with parameters measured in a plain radiograph (deviation angle of alignment axis on coronal and sagittal plane, mechanical lateral distal femur angle).

Results

The mean follow-up period was 26.4 months (range, 12–72 months) and the mean duration to union was 15.94 weeks (range, 11–28 weeks). The mean VAS was 1.36 (range, 0–8) and the range of motion of the knee joint was extension 4.73° (range, 0°–30°) and flexion 107.36° (range, 60°–135°). The mean Knee Society score was 85.47 (range, 47–100). The mean deviation angle of the coronal alignment axis was 4.07° (range, 1.3°–8.8°), the mean deviation angle of the sagittal alignment axis was 3.23° (range, 0.7°–7.0°), and the mechanical lateral femoral angle was 87.75° (range, 82.8°–95.5°). Six patients had traumatic osteoarthritis at the final follow-up.

Conclusion

The purpose of this study was to evaluate the clinical and radiologic outcomes of intraarticular fractures of the distal femur in patients who underwent an anatomical reduction through an open reduction, and converted to an extra-articular fracture with rigid internal fixation. The results were relatively satisfactory.

Keywords
Distal femur, Complete articular fracture, Less invasive locking plating

Figures

Fig. 1
Simple radiographs show anterior-posterior and lateral view of distal femur fractures: AO/OTA classification. (A, B) type C1 fracture, (C, D) type C2 fracture, (E, F) type C3 fracture.

Fig. 2
Intraoperative photograph showing the lateral parapatella approach for articular exposure and reconstruction.

Fig. 3
Following reduction, an appropriate-sized plate was slid in a distal-to-proximal direction over the periosteum at the lateral aspect of the distal femur.

Fig. 4
Intraoperative radiograph (using C-arm) for check the alignment of the distal femur and positioning of the plate.

Fig. 5
Preoperative and immediate postoperative X-rays: anteroposterior (A, C), lateral view (B, D).

Fig. 6
Radiological changes in osteoarthritis at the final follow-up after the minimally invasive plate osteosynthesis technique for a distal femur complete intra-articular fracture.

Tables

Table 1
Demographic Data

Table 2
Clinical and Radiologic Outcomes at the Final Follow-Up

Notes

Financial support:None.

Conflict of interests:None.

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    Results after Less Invasive Locking Plating in Intra-Articular Fractures of the Distal Femur
    J Korean Fract Soc. 2019;32(1):14-20.   Published online January 31, 2019
    DOI: https://doi.org/10.12671/jkfs.2019.32.1.14
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