The reduction and direct repair of isthmic spondylolisthesis using the smiley face rod method in adolescent athlete: Technical note

Kazuta Yamashita, MD; Kosaku Higashino, MD, PhD; Toshinori Sakai, MD, PhD; Yoichiro Takata, MD, PhD; Fumio Hayashi, MD; Fumitake Tezuka, MD; Masatoshi Morimoto MD; Akihiro Nagamachi, MD, PhD; Koichi Sairyo, MD, PhD

doi:10.2152/jmi.64.168

Case reports

The reduction and direct repair of isthmic spondylolisthesis using the smiley face rod method in adolescent athlete: Technical note

Kazuta Yamashita, MD, Kosaku Higashino, MD, PhD, Toshinori Sakai, MD, PhD, Yoichiro Takata, MD, PhD, Fumio Hayashi, MD, Fumitake Tezuka, MD, Masatoshi Morimoto MD, Akihiro Nagamachi, MD, PhD, Koichi Sairyo, MD, PhD

Author information

Kazuta Yamashita, MD
Department of Orthopedics, Institute of Health Biosciences, the University of Tokushima Graduate School
Kosaku Higashino, MD, PhD
Department of Orthopedics, Institute of Health Biosciences, the University of Tokushima Graduate School
Toshinori Sakai, MD, PhD
Department of Orthopedics, Institute of Health Biosciences, the University of Tokushima Graduate School
Yoichiro Takata, MD, PhD
Department of Orthopedics, Institute of Health Biosciences, the University of Tokushima Graduate School
Fumio Hayashi, MD
Department of Orthopedics, Institute of Health Biosciences, the University of Tokushima Graduate School
Fumitake Tezuka, MD
Department of Orthopedics, Institute of Health Biosciences, the University of Tokushima Graduate School
Masatoshi Morimoto MD
Department of Orthopedics, Institute of Health Biosciences, the University of Tokushima Graduate School
Akihiro Nagamachi, MD, PhD
Department of Orthopedics, Institute of Health Biosciences, the University of Tokushima Graduate School
Koichi Sairyo, MD, PhD
Department of Orthopedics, Institute of Health Biosciences, the University of Tokushima Graduate School

Keywords: Spondylolisthesis, Adolescent, Repair surgery, Reduction, Minimally invasive surgery

JOURNAL FREE ACCESS

2017 Volume 64 Issue 1.2 Pages 168-172

DOI https://doi.org/10.2152/jmi.64.168

Details

Abstract

Presently, lumbar spondylolisthesis did not have the indication of direct repair surgery because of the difficulty to reduce the slippage. In this report, we presented a case and described a minimally invasive direct repair surgery to reduce and repair the pars interarticularis defects of lumbar spondylolisthesis. First, curettage and removal of the synovium of the pars interarticularis and decompression of nerve root are conducted. Next, cancellous bone is harvested from the iliac crest. And then the Percutaneous Pedicle Screws are inserted bilaterally. A rod is bended and placed just caudal to the spinous process. We can make reposition of slipped vertebra and stabilize the loose lamina more firmly using a reduction tool and a rod pusher. Finally, bone grafts are implanted onto the pars defects. The Smiley face rod method is very useful to reduce the slippage and repair the pars defects in the lumbar spondylolisthesis especially in adolescent athletes. J. Med. Invest. 64: 168-172, February, 2017

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