A retrospective cohort study on prevalence of postoperative complications in comminuted patellar fractures: comparisons among stabilized with Cannulated-Screw, Kirschner-Wire, or Ring-Pin Tension Bands

Abstract Background Displaced patellar fractures are commonly treated with open reduction and fixation with several different types of tension-band (TB) constructs. The main objective of this study was to compare the prevalence of postoperative complications after surgical stabilization of comminute...

Full description

Bibliographic Details
Main Authors: Xiao-zhong Zhu, Teng-li Huang, Hong-yi Zhu, Bing-bo Bao, Tao Gao, Xing-wei Li, Jun-qing Lin, Xian-You Zheng
Format: Article
Language:English
Published: BMC 2021-01-01
Series:BMC Musculoskeletal Disorders
Subjects:
Online Access:https://doi.org/10.1186/s12891-020-03936-5
_version_ 1818676079063203840
author Xiao-zhong Zhu
Teng-li Huang
Hong-yi Zhu
Bing-bo Bao
Tao Gao
Xing-wei Li
Jun-qing Lin
Xian-You Zheng
author_facet Xiao-zhong Zhu
Teng-li Huang
Hong-yi Zhu
Bing-bo Bao
Tao Gao
Xing-wei Li
Jun-qing Lin
Xian-You Zheng
author_sort Xiao-zhong Zhu
collection DOAJ
description Abstract Background Displaced patellar fractures are commonly treated with open reduction and fixation with several different types of tension-band (TB) constructs. The main objective of this study was to compare the prevalence of postoperative complications after surgical stabilization of comminuted patellar fractures with either a modified Kirschner-wire tension band (MKTB), a cannulated-screw tension band (CSTB), or a ring-pin tension band (RPTB). Methods We conducted a retrospective and consecutive cohort study of comminuted patellar fractures (n = 334) stabilized using a TB construct. Postoperative premature loss of reduction, infection, and skin breakdown were compared according to the type of TB constructs received (MKTB, CSTB, or RPTB). The rate of implant removal due to symptomatic hardware was also evaluated. Results Fixation failure rate was significantly different among the groups (P = 0.013), with failure rates of 4.7% observed in the MKTB group,14.5% in the CSTB group, and 4.9% in the RPTB group. Skin breakdown and infection were not significantly different among the groups (Ps > 0.05). Due to symptomatic hardware, 40.5% of the patients in the MKTB group, 22.9% in the CSTB group, and 24.3% in the RPTB group underwent implant removal (P = 0.004). After adjusting for age, gender, comorbidities, number of supplementary screws/K-wires, and use of cerclage cables, multivariate regression analysis revealed that CSTB contributed to a 2.08-times greater risk of fixation failure compared to RPTB, while MKTB and RPTB were similar in risk of failure. In addition, it was found that patients who underwent MKTB fixation were more than twice as likely to undergo implant removal for symptomatic hardware compared with RPTB (odds ratio = 2.11, 95% CI = 1.20 to 3.72; P = 0.010). Conclusions RPTB have advantage over MKTB and CSTB fixation in terms of symptomatic hardware and premature failure, respectively. Level of evidence Therapeutic Level III
first_indexed 2024-12-17T08:37:46Z
format Article
id doaj.art-577fe946d1ee456f951b9c17357343a4
institution Directory Open Access Journal
issn 1471-2474
language English
last_indexed 2024-12-17T08:37:46Z
publishDate 2021-01-01
publisher BMC
record_format Article
series BMC Musculoskeletal Disorders
spelling doaj.art-577fe946d1ee456f951b9c17357343a42022-12-21T21:56:27ZengBMCBMC Musculoskeletal Disorders1471-24742021-01-012211610.1186/s12891-020-03936-5A retrospective cohort study on prevalence of postoperative complications in comminuted patellar fractures: comparisons among stabilized with Cannulated-Screw, Kirschner-Wire, or Ring-Pin Tension BandsXiao-zhong Zhu0Teng-li Huang1Hong-yi Zhu2Bing-bo Bao3Tao Gao4Xing-wei Li5Jun-qing Lin6Xian-You Zheng7Department of Orthopaedic Surgery, Shanghai Jiao Tong University affiliated Sixth People’s HospitalDepartment of Orthopaedic Surgery, Shanghai Jiao Tong University affiliated Sixth People’s HospitalDepartment of Orthopaedic Surgery, Shanghai Jiao Tong University affiliated Sixth People’s HospitalDepartment of Orthopaedic Surgery, Shanghai Jiao Tong University affiliated Sixth People’s HospitalDepartment of Orthopaedic Surgery, Shanghai Jiao Tong University affiliated Sixth People’s HospitalDepartment of Orthopaedic Surgery, Shanghai Jiao Tong University affiliated Sixth People’s HospitalDepartment of Orthopaedic Surgery, Shanghai Jiao Tong University affiliated Sixth People’s HospitalDepartment of Orthopaedic Surgery, Shanghai Jiao Tong University affiliated Sixth People’s HospitalAbstract Background Displaced patellar fractures are commonly treated with open reduction and fixation with several different types of tension-band (TB) constructs. The main objective of this study was to compare the prevalence of postoperative complications after surgical stabilization of comminuted patellar fractures with either a modified Kirschner-wire tension band (MKTB), a cannulated-screw tension band (CSTB), or a ring-pin tension band (RPTB). Methods We conducted a retrospective and consecutive cohort study of comminuted patellar fractures (n = 334) stabilized using a TB construct. Postoperative premature loss of reduction, infection, and skin breakdown were compared according to the type of TB constructs received (MKTB, CSTB, or RPTB). The rate of implant removal due to symptomatic hardware was also evaluated. Results Fixation failure rate was significantly different among the groups (P = 0.013), with failure rates of 4.7% observed in the MKTB group,14.5% in the CSTB group, and 4.9% in the RPTB group. Skin breakdown and infection were not significantly different among the groups (Ps > 0.05). Due to symptomatic hardware, 40.5% of the patients in the MKTB group, 22.9% in the CSTB group, and 24.3% in the RPTB group underwent implant removal (P = 0.004). After adjusting for age, gender, comorbidities, number of supplementary screws/K-wires, and use of cerclage cables, multivariate regression analysis revealed that CSTB contributed to a 2.08-times greater risk of fixation failure compared to RPTB, while MKTB and RPTB were similar in risk of failure. In addition, it was found that patients who underwent MKTB fixation were more than twice as likely to undergo implant removal for symptomatic hardware compared with RPTB (odds ratio = 2.11, 95% CI = 1.20 to 3.72; P = 0.010). Conclusions RPTB have advantage over MKTB and CSTB fixation in terms of symptomatic hardware and premature failure, respectively. Level of evidence Therapeutic Level IIIhttps://doi.org/10.1186/s12891-020-03936-5Patellar fracturesKirschner‐wirecannulated‐screwRing‐pinTension band
spellingShingle Xiao-zhong Zhu
Teng-li Huang
Hong-yi Zhu
Bing-bo Bao
Tao Gao
Xing-wei Li
Jun-qing Lin
Xian-You Zheng
A retrospective cohort study on prevalence of postoperative complications in comminuted patellar fractures: comparisons among stabilized with Cannulated-Screw, Kirschner-Wire, or Ring-Pin Tension Bands
BMC Musculoskeletal Disorders
Patellar fractures
Kirschner‐wirecannulated‐screw
Ring‐pin
Tension band
title A retrospective cohort study on prevalence of postoperative complications in comminuted patellar fractures: comparisons among stabilized with Cannulated-Screw, Kirschner-Wire, or Ring-Pin Tension Bands
title_full A retrospective cohort study on prevalence of postoperative complications in comminuted patellar fractures: comparisons among stabilized with Cannulated-Screw, Kirschner-Wire, or Ring-Pin Tension Bands
title_fullStr A retrospective cohort study on prevalence of postoperative complications in comminuted patellar fractures: comparisons among stabilized with Cannulated-Screw, Kirschner-Wire, or Ring-Pin Tension Bands
title_full_unstemmed A retrospective cohort study on prevalence of postoperative complications in comminuted patellar fractures: comparisons among stabilized with Cannulated-Screw, Kirschner-Wire, or Ring-Pin Tension Bands
title_short A retrospective cohort study on prevalence of postoperative complications in comminuted patellar fractures: comparisons among stabilized with Cannulated-Screw, Kirschner-Wire, or Ring-Pin Tension Bands
title_sort retrospective cohort study on prevalence of postoperative complications in comminuted patellar fractures comparisons among stabilized with cannulated screw kirschner wire or ring pin tension bands
topic Patellar fractures
Kirschner‐wirecannulated‐screw
Ring‐pin
Tension band
url https://doi.org/10.1186/s12891-020-03936-5
work_keys_str_mv AT xiaozhongzhu aretrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT tenglihuang aretrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT hongyizhu aretrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT bingbobao aretrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT taogao aretrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT xingweili aretrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT junqinglin aretrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT xianyouzheng aretrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT xiaozhongzhu retrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT tenglihuang retrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT hongyizhu retrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT bingbobao retrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT taogao retrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT xingweili retrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT junqinglin retrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands
AT xianyouzheng retrospectivecohortstudyonprevalenceofpostoperativecomplicationsincomminutedpatellarfracturescomparisonsamongstabilizedwithcannulatedscrewkirschnerwireorringpintensionbands