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MR Vol.11 No.2 indexに戻る
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MODERN RHEUMATOLOGY
Vol.11 No.2 |
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Flexor tendon rupture in the rheumatoid wrist
caused by bony spurs in the carpal tunnel |
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| A. Kobayashi1, T. Futami1, Y. Tsukamoto1 |
| (1) Department of Orthopaedic Surgery, Kitasato
University East Hospital, 2-1-1 Asamizodai, Sagamihara, Kanagawa
228-8520, Japan |
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| Abstract |
| Abstract Five cases of flexor tendon rupture
in surgically treated rheumatoid wrists were studied. The tendon
ruptures occurred in the thumb and index finger, and the ruptures
site was in the carpal tunnel in all five cases. The main cause
of rupture was the formation of bony irregularities in the form
of bony spurs in the carpal bones, mainly in the scaphoid, or at
the volar aspect of the distal radius, as a result of rheumatoid
erosion. In all five cases, tendon reconstruction and bony spur
excision were conducted, and good recovery of phalangeal function
was achieved. To clarify the causes of the rupture of the flexor
pollicis longus in rheumatoid hands, we used three-dimensional
computed tomography on 19 rheumatoid wrists without tendon rupture
to investigate the presence or absence of bony spurs in the volar
aspect of the scaphoid. The results showed a correlation between
the frequency of scaphoid spurs and progression of bone changes
as checked by radiography. |
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| Key words |
| Key words Bony spur ・ Carpal tunnel ・ Flexor
tendon rupture ・ Rheumatoid arthritis ・ Wrist joint |
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