Low incidence of flexion-type supracondylar humerus fractures but high rate of complications: A population-based study during 2000–2009

Background and purpose — Supracondylar humerus fractures are the most common type of elbow fracture in children. A small proportion of them are flexion-type fractures. We analyzed their current incidence, injury history, clinical and radiographic findings, treatment, and outcomes. Patients and metho...

Full description

Bibliographic Details
Main Authors: Eira Kuoppala, Roope Parviainen, Tytti Pokka, Minna Sirviö, Willy Serlo, Juha-Jaakko Sinikumpu
Format: Article
Language:English
Published: Medical Journals Sweden 2016-07-01
Series:Acta Orthopaedica
Online Access:http://dx.doi.org/10.1080/17453674.2016.1176825
_version_ 1798018024307949568
author Eira Kuoppala
Roope Parviainen
Tytti Pokka
Minna Sirviö
Willy Serlo
Juha-Jaakko Sinikumpu
author_facet Eira Kuoppala
Roope Parviainen
Tytti Pokka
Minna Sirviö
Willy Serlo
Juha-Jaakko Sinikumpu
author_sort Eira Kuoppala
collection DOAJ
description Background and purpose — Supracondylar humerus fractures are the most common type of elbow fracture in children. A small proportion of them are flexion-type fractures. We analyzed their current incidence, injury history, clinical and radiographic findings, treatment, and outcomes. Patients and methods — We performed a population-based study, including all children <16 years of age. Radiographs were re-analyzed to include only flexion-type supracondylar fractures. Medical records were reviewed and outcomes were evaluated at a mean of 9 years after the injury. In addition, we performed a systematic literature review of all papers published on the topic since 1990 and compared the results with the findings of the current study. Results — During the study period, the rate of flexion-type fractures was 1.2% (7 out of 606 supracondylar humeral fractures). The mean annual incidence was 0.8 per 105. 4 fractures were multidirectionally unstable, according to the Gartland-Wilkins classification. All but 1 were operatively treated. Reduced range of motion, changed carrying angle, and ulnar nerve irritation were the most frequent short-term complications. Finally, in the long-term follow-up, mean carrying angle was 50% more in injured elbows (21°) than in uninjured elbows (14°). 4 patients of the 7 achieved a satisfactory long-term outcome according to Flynn’s criteria. Interpretation — Supracondylar humeral flexion-type fractures are rare. They are usually severe injuries, often resulting in short-term and long-term complications regardless of the original surgical fixation used.
first_indexed 2024-04-11T16:16:05Z
format Article
id doaj.art-fb861d36cba74ff88490f64b86b5edd4
institution Directory Open Access Journal
issn 1745-3674
1745-3682
language English
last_indexed 2024-04-11T16:16:05Z
publishDate 2016-07-01
publisher Medical Journals Sweden
record_format Article
series Acta Orthopaedica
spelling doaj.art-fb861d36cba74ff88490f64b86b5edd42022-12-22T04:14:32ZengMedical Journals SwedenActa Orthopaedica1745-36741745-36822016-07-0187440641110.1080/17453674.2016.11768251176825Low incidence of flexion-type supracondylar humerus fractures but high rate of complications: A population-based study during 2000–2009Eira Kuoppala0Roope Parviainen1Tytti Pokka2Minna Sirviö3Willy Serlo4Juha-Jaakko Sinikumpu5Oulu University Hospital, Medical Research Center Oulu, Oulu University, PEDEGO Research GroupOulu University Hospital, Medical Research Center Oulu, Oulu University, PEDEGO Research GroupOulu University Hospital, Medical Research Center Oulu, Oulu University, PEDEGO Research GroupOulu University Hospital, Medical Research Center Oulu, Oulu University, PEDEGO Research GroupOulu University Hospital, Medical Research Center Oulu, Oulu University, PEDEGO Research GroupOulu University Hospital, Medical Research Center Oulu, Oulu University, PEDEGO Research GroupBackground and purpose — Supracondylar humerus fractures are the most common type of elbow fracture in children. A small proportion of them are flexion-type fractures. We analyzed their current incidence, injury history, clinical and radiographic findings, treatment, and outcomes. Patients and methods — We performed a population-based study, including all children <16 years of age. Radiographs were re-analyzed to include only flexion-type supracondylar fractures. Medical records were reviewed and outcomes were evaluated at a mean of 9 years after the injury. In addition, we performed a systematic literature review of all papers published on the topic since 1990 and compared the results with the findings of the current study. Results — During the study period, the rate of flexion-type fractures was 1.2% (7 out of 606 supracondylar humeral fractures). The mean annual incidence was 0.8 per 105. 4 fractures were multidirectionally unstable, according to the Gartland-Wilkins classification. All but 1 were operatively treated. Reduced range of motion, changed carrying angle, and ulnar nerve irritation were the most frequent short-term complications. Finally, in the long-term follow-up, mean carrying angle was 50% more in injured elbows (21°) than in uninjured elbows (14°). 4 patients of the 7 achieved a satisfactory long-term outcome according to Flynn’s criteria. Interpretation — Supracondylar humeral flexion-type fractures are rare. They are usually severe injuries, often resulting in short-term and long-term complications regardless of the original surgical fixation used.http://dx.doi.org/10.1080/17453674.2016.1176825
spellingShingle Eira Kuoppala
Roope Parviainen
Tytti Pokka
Minna Sirviö
Willy Serlo
Juha-Jaakko Sinikumpu
Low incidence of flexion-type supracondylar humerus fractures but high rate of complications: A population-based study during 2000–2009
Acta Orthopaedica
title Low incidence of flexion-type supracondylar humerus fractures but high rate of complications: A population-based study during 2000–2009
title_full Low incidence of flexion-type supracondylar humerus fractures but high rate of complications: A population-based study during 2000–2009
title_fullStr Low incidence of flexion-type supracondylar humerus fractures but high rate of complications: A population-based study during 2000–2009
title_full_unstemmed Low incidence of flexion-type supracondylar humerus fractures but high rate of complications: A population-based study during 2000–2009
title_short Low incidence of flexion-type supracondylar humerus fractures but high rate of complications: A population-based study during 2000–2009
title_sort low incidence of flexion type supracondylar humerus fractures but high rate of complications a population based study during 2000 2009
url http://dx.doi.org/10.1080/17453674.2016.1176825
work_keys_str_mv AT eirakuoppala lowincidenceofflexiontypesupracondylarhumerusfracturesbuthighrateofcomplicationsapopulationbasedstudyduring20002009
AT roopeparviainen lowincidenceofflexiontypesupracondylarhumerusfracturesbuthighrateofcomplicationsapopulationbasedstudyduring20002009
AT tyttipokka lowincidenceofflexiontypesupracondylarhumerusfracturesbuthighrateofcomplicationsapopulationbasedstudyduring20002009
AT minnasirvio lowincidenceofflexiontypesupracondylarhumerusfracturesbuthighrateofcomplicationsapopulationbasedstudyduring20002009
AT willyserlo lowincidenceofflexiontypesupracondylarhumerusfracturesbuthighrateofcomplicationsapopulationbasedstudyduring20002009
AT juhajaakkosinikumpu lowincidenceofflexiontypesupracondylarhumerusfracturesbuthighrateofcomplicationsapopulationbasedstudyduring20002009