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The controversial relationship between osteoarthritis and osteoporosis: an update on hand subtypes
Author(s) -
Ramonda Roberta,
Sartori Leonardo,
Ortolan Augusta,
Frallonardo Paola,
Lorenzin Mariagrazia,
Punzi Leonardo,
Musacchio Estella
Publication year - 2016
Publication title -
international journal of rheumatic diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 41
eISSN - 1756-185X
pISSN - 1756-1841
DOI - 10.1111/1756-185x.12709
Subject(s) - medicine , osteoarthritis , rheumatology , osteoporosis , phalanx , osteopenia , bone mineral , interphalangeal joint , physical therapy , surgery , pathology , alternative medicine
Aim To compare hand osteoarthritis ( HOA ) subtypes and to examine possible links with local bone mineral density ( BMD ). Method Fifty‐five patients with erosive hand osteoarthritis ( EHOA ) and 21 patients with nodal hand osteoarthritis ( NOA ) fulfilling American College of Rheumatology criteria for HOA were evaluated. Subjects showing at least two erosions of the interphalangeal joints were assigned to the EHOA group; the others were considered NOA . Disease duration, number of active joints and radiological scores were assessed. All patients and 174 controls underwent phalangeal radiographic absorptiometry ( pRA ) of the middle phalanges of the non‐dominant hand to assess BMD , T ‐ and Z ‐scores. Results BMD was higher in EHOA with respect to NOA and controls ( P = 0.05); T ‐ and Z ‐scores were significantly higher in EHOA ( P = 0.01 and P < 0.01). Values suggestive of osteopenia were found in 32% of EHOA and 22% of NOA patients, and in 44% of controls ( P = 0.05 EHOA vs . NOA ); a T ‐score < −2.5 standard deviations was present in 15% of EHOA and 28% of NOA patients, and in 21% of controls ( P = 0.05 EHOA vs . NOA ). Conclusion Phalangeal BMD was higher in EHOA compared to NOA and controls. This characteristic could potentially be exploited to differentiate the two hand OA subtypes.