Cargando…

Clinical Results of Dual SC Screw: A Mini-Sliding Hip Screw with an Anti-rotating Screw for Femoral Neck Fractures

BACKGROUD: Dual SC screw (DSCS) is a unique concept internal fixation device consisting of a sliding screw and barrel assembly that enables compression force to be applied to the femoral neck fracture side. There are two types of barrels: a thread barrel and a plate barrel that has a one-holed side...

Descripción completa

Detalles Bibliográficos
Autores principales: Hiranaka, Takafumi, Tanaka, Toshikazu, Okumura, Kenjiro, Fujishiro, Takaaki, Shigemoto, Rika, Araki, Shotaro, Okada, Ryo, Nako, Ryohei, Okamoto, Koji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Orthopaedic Association 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8609221/
https://www.ncbi.nlm.nih.gov/pubmed/34868492
http://dx.doi.org/10.4055/cios20202
_version_ 1784602884824891392
author Hiranaka, Takafumi
Tanaka, Toshikazu
Okumura, Kenjiro
Fujishiro, Takaaki
Shigemoto, Rika
Araki, Shotaro
Okada, Ryo
Nako, Ryohei
Okamoto, Koji
author_facet Hiranaka, Takafumi
Tanaka, Toshikazu
Okumura, Kenjiro
Fujishiro, Takaaki
Shigemoto, Rika
Araki, Shotaro
Okada, Ryo
Nako, Ryohei
Okamoto, Koji
author_sort Hiranaka, Takafumi
collection PubMed
description BACKGROUD: Dual SC screw (DSCS) is a unique concept internal fixation device consisting of a sliding screw and barrel assembly that enables compression force to be applied to the femoral neck fracture side. There are two types of barrels: a thread barrel and a plate barrel that has a one-holed side plate to prevent varus deformity. We report clinical results of the application of a DSCS with combined use of a thread barrel screw as an anti-rotational screw and a plate barrel screw as a compression hip screw. METHODS: We used DSCS for femoral neck fractures in 196 hip joints of 190 patients between November 2005 and June 2017. Among them, 70 hips in 66 patients (13 men and 53 women; mean age, 73.2 years) were followed up for at least 24 months. There were 53 nondisplaced fractures (Garden's classification stage 1 or 2) and 17 displaced fractures (stage 3 or 4). We evaluated the postoperative walking ability of the patients who were followed up for at least 24 months and examined details of all complications. RESULTS: The mean follow-up period was 37.4 months (range, 24–144 months). Forty-two (64%) out of the 66 patients who were followed up for at least 2 years were able to walk independently with or without a cane. The incidence of complications was 11.5% in nondisplaced fractures and 17.5% in displaced fractures, and arthroplasty was required in 5.8% and 5.0%, respectively. The most frequent complication was secondary displacement including cutout and shortening of the femoral neck, but no implants showed varus displacement. CONCLUSIONS: The application of DSCS for the treatment of femoral neck fractures had satisfactory results. The complication rate was low, and there was no postoperative varus displacement of DSCS in either displaced or nondisplaced fractures. We suggest DSCS is a reliable option for both displaced and nondisplaced femoral neck fractures.
format Online
Article
Text
id pubmed-8609221
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher The Korean Orthopaedic Association
record_format MEDLINE/PubMed
spelling pubmed-86092212021-12-04 Clinical Results of Dual SC Screw: A Mini-Sliding Hip Screw with an Anti-rotating Screw for Femoral Neck Fractures Hiranaka, Takafumi Tanaka, Toshikazu Okumura, Kenjiro Fujishiro, Takaaki Shigemoto, Rika Araki, Shotaro Okada, Ryo Nako, Ryohei Okamoto, Koji Clin Orthop Surg Original Article BACKGROUD: Dual SC screw (DSCS) is a unique concept internal fixation device consisting of a sliding screw and barrel assembly that enables compression force to be applied to the femoral neck fracture side. There are two types of barrels: a thread barrel and a plate barrel that has a one-holed side plate to prevent varus deformity. We report clinical results of the application of a DSCS with combined use of a thread barrel screw as an anti-rotational screw and a plate barrel screw as a compression hip screw. METHODS: We used DSCS for femoral neck fractures in 196 hip joints of 190 patients between November 2005 and June 2017. Among them, 70 hips in 66 patients (13 men and 53 women; mean age, 73.2 years) were followed up for at least 24 months. There were 53 nondisplaced fractures (Garden's classification stage 1 or 2) and 17 displaced fractures (stage 3 or 4). We evaluated the postoperative walking ability of the patients who were followed up for at least 24 months and examined details of all complications. RESULTS: The mean follow-up period was 37.4 months (range, 24–144 months). Forty-two (64%) out of the 66 patients who were followed up for at least 2 years were able to walk independently with or without a cane. The incidence of complications was 11.5% in nondisplaced fractures and 17.5% in displaced fractures, and arthroplasty was required in 5.8% and 5.0%, respectively. The most frequent complication was secondary displacement including cutout and shortening of the femoral neck, but no implants showed varus displacement. CONCLUSIONS: The application of DSCS for the treatment of femoral neck fractures had satisfactory results. The complication rate was low, and there was no postoperative varus displacement of DSCS in either displaced or nondisplaced fractures. We suggest DSCS is a reliable option for both displaced and nondisplaced femoral neck fractures. The Korean Orthopaedic Association 2021-12 2021-08-17 /pmc/articles/PMC8609221/ /pubmed/34868492 http://dx.doi.org/10.4055/cios20202 Text en Copyright © 2021 by The Korean Orthopaedic Association https://creativecommons.org/licenses/by-nc/4.0/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 (https://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.
spellingShingle Original Article
Hiranaka, Takafumi
Tanaka, Toshikazu
Okumura, Kenjiro
Fujishiro, Takaaki
Shigemoto, Rika
Araki, Shotaro
Okada, Ryo
Nako, Ryohei
Okamoto, Koji
Clinical Results of Dual SC Screw: A Mini-Sliding Hip Screw with an Anti-rotating Screw for Femoral Neck Fractures
title Clinical Results of Dual SC Screw: A Mini-Sliding Hip Screw with an Anti-rotating Screw for Femoral Neck Fractures
title_full Clinical Results of Dual SC Screw: A Mini-Sliding Hip Screw with an Anti-rotating Screw for Femoral Neck Fractures
title_fullStr Clinical Results of Dual SC Screw: A Mini-Sliding Hip Screw with an Anti-rotating Screw for Femoral Neck Fractures
title_full_unstemmed Clinical Results of Dual SC Screw: A Mini-Sliding Hip Screw with an Anti-rotating Screw for Femoral Neck Fractures
title_short Clinical Results of Dual SC Screw: A Mini-Sliding Hip Screw with an Anti-rotating Screw for Femoral Neck Fractures
title_sort clinical results of dual sc screw: a mini-sliding hip screw with an anti-rotating screw for femoral neck fractures
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8609221/
https://www.ncbi.nlm.nih.gov/pubmed/34868492
http://dx.doi.org/10.4055/cios20202
work_keys_str_mv AT hiranakatakafumi clinicalresultsofdualscscrewaminislidinghipscrewwithanantirotatingscrewforfemoralneckfractures
AT tanakatoshikazu clinicalresultsofdualscscrewaminislidinghipscrewwithanantirotatingscrewforfemoralneckfractures
AT okumurakenjiro clinicalresultsofdualscscrewaminislidinghipscrewwithanantirotatingscrewforfemoralneckfractures
AT fujishirotakaaki clinicalresultsofdualscscrewaminislidinghipscrewwithanantirotatingscrewforfemoralneckfractures
AT shigemotorika clinicalresultsofdualscscrewaminislidinghipscrewwithanantirotatingscrewforfemoralneckfractures
AT arakishotaro clinicalresultsofdualscscrewaminislidinghipscrewwithanantirotatingscrewforfemoralneckfractures
AT okadaryo clinicalresultsofdualscscrewaminislidinghipscrewwithanantirotatingscrewforfemoralneckfractures
AT nakoryohei clinicalresultsofdualscscrewaminislidinghipscrewwithanantirotatingscrewforfemoralneckfractures
AT okamotokoji clinicalresultsofdualscscrewaminislidinghipscrewwithanantirotatingscrewforfemoralneckfractures