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RETRACTED ARTICLE: Total knee arthroplasty performed with either a mini-subvastus or a standard approach: a prospective randomized controlled study with a minimum follow-up of 2 years

  • Knee Arthroplasty
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This article was retracted on 21 March 2015

Abstract

Background

There is currently a trend toward minimally invasive total knee arthroplasty (TKA) to decrease the morbidity related to the standard approach. The aim of our study was to clarify whether the mini-subvastus surgical had an advantage over the standard in term of pain level, blood loss, and postoperative recovery, whether the mini-subvastus surgical was prone to radiographic malalignment, prolonged operative time, and increased complications.

Methods

In a prospective randomized study, we compared the clinical and radiological results of primary TKA using a mini-subvastus approach or a standard approach in 68 patients. The mini-subvastus approach was used on 35 patients (group I) and the standard approach on 33 patients (group II).

Results

The mean follow-up was 28 months (range 24–36 months). Patients in group I had less blood loss and better visual analogue scale score at 1 day postoperatively. They achieved active straight leg raise earlier and underwent less lateral retinacular releases. The mean Knee Society function score, Oxford knee score, and range of movement were significantly better in group I up to 9 months after surgery (all, p < 0.05). However, there were no significant differences in these parameters between the groups at final follow-up. Reduced access and visibility in group I prolonged tourniquet time by an average of 22 min and resulted in five technical errors on radiographic evaluation.

Conclusions

Patients can receive marked but temporary benefits from the mini-subvastus technique, with a definite cost: that of component malposition and prolongation of operative time.

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Acknowledgments

We thank X. G. Li for linguistic revision and statistical data. We also thank the participating surgeons at the Department of Orthopaedics The First Hospital Affiliated to Suzhou University, J. Y. Sun, Y. Z. Xu, and T. S. Tang.

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Authors and Affiliations

  1. Department of Orthopaedics Surgery, Red Cross Hospital in Hangzhou, No. 208, East Ring Road, Hangzhou, 310003, Zhejiang Province, People’s Republic of China

    Zhen Lai, ShiYuan Shi, Jun Fei & Wei Wei

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  1. Zhen Lai
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  2. ShiYuan Shi
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  3. Jun Fei
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  4. Wei Wei
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Corresponding authors

Correspondence to Zhen Lai or ShiYuan Shi.

Additional information

Archives of Orthopaedic and Trauma Surgery, Springer-Verlag Berlin Heidelberg 2014. This paper, published in Volume 134, Issue 8, pages 1155-1162, DOI 10.1007/s00402-014-1963-2, has been formally withdrawn by the two corresponding authors on ethical grounds because the article contains extensive and repeated instances of plagiarism. Archives of Orthopaedic and Trauma Surgery treats all identified evidence of plagiarism in the published articles most seriously. It is unfortunate that this misconduct was not detected before going to press. The authors apologize to the Editors and readers as well as the authors of the original article.

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Lai, Z., Shi, S., Fei, J. et al. RETRACTED ARTICLE: Total knee arthroplasty performed with either a mini-subvastus or a standard approach: a prospective randomized controlled study with a minimum follow-up of 2 years. Arch Orthop Trauma Surg 134, 1155–1162 (2014). https://doi.org/10.1007/s00402-014-1963-2

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  • DOI: https://doi.org/10.1007/s00402-014-1963-2

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