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Europa Medicophysica 2001 March;37(1):3-10

Copyright © 2001 EDIZIONI MINERVA MEDICA

language: English

Reliability of two goniometers in assessing rheumatoid finger mobility. Relationship between mobility and disability

Lefèvre-Colau M. M., Poiraudeau S., Fermanian J. *, Mayoux-Benhamou M. A., Bargy F. **, Revel M.

From the Department of Physical and Rehabilitation Medecine Hôpital Cochin, Assistance Publique-Hopitaux de Paris Université René Descartes, Paris, France *Department of Biostatistics, Hôpital Necker Assistance Publique-Hopitaux de Paris Université René Descartes, Paris, France **Laboratory of Anatomy, Faculté Cochin-Port-Royal Université René Descartes, Paris, France


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Background. To ­study, in the rheu­ma­toid ­hand, the reli­abil­ity of meas­ures of met­a­car­poph­a­lan­geal (MCP) and prox­i­mal inter­pha­lan­geal (PIP) mobil­ity ­assessed by two fin­ger gon­i­om­e­ters and to eval­u­ate the rela­tion­ship ­between fin­ger mobil­ity and ­hand dis­abil­ity.
Methods. Transversal ­study. Patients ­with rheu­ma­toid ­arthritis (RA), ­defined accord­ing to the ACR cri­te­ria, under­went meas­ure­ment of the mobil­ity of the met­a­car­poph­a­lan­geal (MCP) and the prox­i­mal inter­pha­lan­geal (PIP) of the sec­ond fin­ger ­with two gon­i­om­e­ters. Reliability was ­assessed by the intra­class coef­fi­cient cor­re­la­tion (ICC) and by Bland and Altman anal­y­sis. Correlations ­between mobil­ity, dis­abil­ity and dis­ease activ­ity meas­ures ­were ­assessed by the Spearman cor­re­la­tion coef­fi­cient. Thirty ­patients (4 men) ­aged 57 ­years (­range, 32-86; SD, 14.9) ­were includ­ed.
Results. With the elec­tro­gon­i­om­e­ter (EG), inter­ob­serv­er reli­abil­ity ­ranged ­from 0.65 to 0.84. With the stan­dard uni­ver­sal gon­i­om­e­ter (SUG), inter­test­er reli­abil­ity was sim­i­lar to ­that of the EG, rang­ing ­from 0.61 to 0.79. Bland and Altman anal­y­sis con­sis­tent­ly ­showed homo­ge­ne­ous dis­tri­bu­tion of the dif­fer­enc­es ­with no system­at­ic ­trend. No cor­re­la­tion ­between fin­ger ­range of ­motion (ROM) and ­hand dis­abil­ity meas­ures was ­observed.
Conclusions. The EG and the SUG ­have accept­able inter­test­er reli­abil­ities ­when assess­ing rheu­ma­toid fin­ger mobil­ity. However, fin­ger ­joint ROM is poor­ly cor­re­lat­ed ­with ­hand dis­abil­ity meas­ures.Background. To ­study, in the rheu­ma­toid ­hand, the reli­abil­ity of meas­ures of met­a­car­poph­a­lan­geal (MCP) and prox­i­mal inter­pha­lan­geal (PIP) mobil­ity ­assessed by two fin­ger gon­i­om­e­ters and to eval­u­ate the rela­tion­ship ­between fin­ger mobil­ity and ­hand dis­abil­ity.
Methods. Transversal ­study. Patients ­with rheu­ma­toid ­arthritis (RA), ­defined accord­ing to the ACR cri­te­ria, under­went meas­ure­ment of the mobil­ity of the met­a­car­poph­a­lan­geal (MCP) and the prox­i­mal inter­pha­lan­geal (PIP) of the sec­ond fin­ger ­with two gon­i­om­e­ters. Reliability was ­assessed by the intra­class coef­fi­cient cor­re­la­tion (ICC) and by Bland and Altman anal­y­sis. Correlations ­between mobil­ity, dis­abil­ity and dis­ease activ­ity meas­ures ­were ­assessed by the Spearman cor­re­la­tion coef­fi­cient. Thirty ­patients (4 men) ­aged 57 ­years (­range, 32-86; SD, 14.9) ­were includ­ed.
Results. With the elec­tro­gon­i­om­e­ter (EG), inter­ob­serv­er reli­abil­ity ­ranged ­from 0.65 to 0.84. With the stan­dard uni­ver­sal gon­i­om­e­ter (SUG), inter­test­er reli­abil­ity was sim­i­lar to ­that of the EG, rang­ing ­from 0.61 to 0.79. Bland and Altman anal­y­sis con­sis­tent­ly ­showed homo­ge­ne­ous dis­tri­bu­tion of the dif­fer­enc­es ­with no system­at­ic ­trend. No cor­re­la­tion ­between fin­ger ­range of ­motion (ROM) and ­hand dis­abil­ity meas­ures was ­observed.
Conclusions. The EG and the SUG ­have accept­able inter­test­er reli­abil­ities ­when assess­ing rheu­ma­toid fin­ger mobil­ity. However, fin­ger ­joint ROM is poor­ly cor­re­lat­ed ­with ­hand dis­abil­ity meas­ures.

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