Inter- and intraobserver reliability of the MTM-classification for proximal humeral fractures: a prospective study

Christian Bahrs, Hagen Schmal, Erich Lingenfelter, Bernd Rolauffs, Kuno Weise, Klaus Dietz, Peter Helwig

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

BACKGROUND: A precise modular topographic-morphological (MTM) classification for proximal humeral fractures may address current classification problems. The classification was developed to evaluate whether a very detailed classification exceeding the analysis of fractured parts may be a valuable tool.

METHODS: Three observers classified plain radiographs of 22 fractures using both a simple version (fracture displacement, number of parts) and an extensive version (individual topographic fracture type and morphology) of the MTM classification. Kappa-statistics were used to determine reliability.

RESULTS: An acceptable reliability was found for the simple version classifying fracture displacement and fractured main parts. Fair interobserver agreement was found for the extensive version with individual topographic fracture type and morphology.

CONCLUSION: Although the MTM-classification covers a wide spectrum of fracture types, our results indicate that the precise topographic and morphological description is not delivering reproducible results. Therefore, simplicity in fracture classification may be more useful than extensive approaches, which are not adequately reliable to address current classification problems.

OriginalsprogEngelsk
TidsskriftBMC Musculoskeletal Disorders
Vol/bind9
Sider (fra-til)21
ISSN1471-2474
DOI
StatusUdgivet - 17. feb. 2008

Fingeraftryk

Prospective Studies

Citer dette

Bahrs, Christian ; Schmal, Hagen ; Lingenfelter, Erich ; Rolauffs, Bernd ; Weise, Kuno ; Dietz, Klaus ; Helwig, Peter. / Inter- and intraobserver reliability of the MTM-classification for proximal humeral fractures : a prospective study. I: BMC Musculoskeletal Disorders. 2008 ; Bind 9. s. 21.
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Inter- and intraobserver reliability of the MTM-classification for proximal humeral fractures : a prospective study. / Bahrs, Christian; Schmal, Hagen; Lingenfelter, Erich; Rolauffs, Bernd; Weise, Kuno; Dietz, Klaus; Helwig, Peter.

I: BMC Musculoskeletal Disorders, Bind 9, 17.02.2008, s. 21.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Inter- and intraobserver reliability of the MTM-classification for proximal humeral fractures

T2 - a prospective study

AU - Bahrs, Christian

AU - Schmal, Hagen

AU - Lingenfelter, Erich

AU - Rolauffs, Bernd

AU - Weise, Kuno

AU - Dietz, Klaus

AU - Helwig, Peter

PY - 2008/2/17

Y1 - 2008/2/17

N2 - BACKGROUND: A precise modular topographic-morphological (MTM) classification for proximal humeral fractures may address current classification problems. The classification was developed to evaluate whether a very detailed classification exceeding the analysis of fractured parts may be a valuable tool.METHODS: Three observers classified plain radiographs of 22 fractures using both a simple version (fracture displacement, number of parts) and an extensive version (individual topographic fracture type and morphology) of the MTM classification. Kappa-statistics were used to determine reliability.RESULTS: An acceptable reliability was found for the simple version classifying fracture displacement and fractured main parts. Fair interobserver agreement was found for the extensive version with individual topographic fracture type and morphology.CONCLUSION: Although the MTM-classification covers a wide spectrum of fracture types, our results indicate that the precise topographic and morphological description is not delivering reproducible results. Therefore, simplicity in fracture classification may be more useful than extensive approaches, which are not adequately reliable to address current classification problems.

AB - BACKGROUND: A precise modular topographic-morphological (MTM) classification for proximal humeral fractures may address current classification problems. The classification was developed to evaluate whether a very detailed classification exceeding the analysis of fractured parts may be a valuable tool.METHODS: Three observers classified plain radiographs of 22 fractures using both a simple version (fracture displacement, number of parts) and an extensive version (individual topographic fracture type and morphology) of the MTM classification. Kappa-statistics were used to determine reliability.RESULTS: An acceptable reliability was found for the simple version classifying fracture displacement and fractured main parts. Fair interobserver agreement was found for the extensive version with individual topographic fracture type and morphology.CONCLUSION: Although the MTM-classification covers a wide spectrum of fracture types, our results indicate that the precise topographic and morphological description is not delivering reproducible results. Therefore, simplicity in fracture classification may be more useful than extensive approaches, which are not adequately reliable to address current classification problems.

KW - Humans

KW - Observer Variation

KW - Prospective Studies

KW - Reproducibility of Results

KW - Shoulder Fractures

KW - Comparative Study

KW - Journal Article

U2 - 10.1186/1471-2474-9-21

DO - 10.1186/1471-2474-9-21

M3 - Journal article

C2 - 18279527

VL - 9

SP - 21

JO - B M C Musculoskeletal Disorders

JF - B M C Musculoskeletal Disorders

SN - 1471-2474

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