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MR Vol.14 No.1 indexに戻る
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MODERN RHEUMATOLOGY
Vol.14 No.1 |
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Total ankle arthroplasty for deformity of the
foot in patients with rheumatoid arthritis using the TNK ankle system:
clinical results of 21 cases
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| Masakazu Nagashima1 , Hiroshi Takahashi1, Shikou
Kakumoto1, Yousuke Miyamoto1 and Shinichi Yoshino1 |
| (1) Department of Joint Disease and Rheumatism,
Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603,
Japan |
Received: 10 May 2003 Accepted: 11 August 2003 |
| Abstract |
| Abstract We report the results of total ankle
arthroplasty (TAA) of 21 ankle joints performed on 19 patients with
rheumatoid arthritis (RA) using the Japanese TNK ankle system. The
clinical evaluation for an average follow-up period of 33.8 months
was based on the ankle analysis system. The total score, pain score,
range of motion, and walking ability significantly improved postoperatively
compared with the preoperative period. These parameters also showed
significantly different values between the preoperative and the follow-up
periods. However, the range of motion significantly improved postoperatively.
In the evaluation of TAA using the TNK ankle system, a radiolucent
line of about 1mm was detected, but there was no dislocation or sinking
of the tibial and talar prostheses. There were no severe complications
except for two cases with a delayed wound healing and one with a
deep infection. These results suggest that if the talocrural joint
only was destroyed and the neighboring joints (subtalar or talonavicular)
had fibrous fusion, or the patient had relatively fewer activities
in daily life or was an elderly person, TAA using the TNK ankle system
was effective for the treatment of painful and disabling ankle joints
in patients with RA in the middle of the follow-up period. |
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| Key words |
| Key words Ankle joint arthroplasty - Follow-up study - Rheumatoid
arthritis (RA) - TNK ankle system |
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