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Bone imaging after total replacement arthroplasty of the hip joint

✍ Scribed by Hans Creutzig

Publisher: Springer
Year: 1976
Tongue: English
Weight: 307 KB
Volume: 1
Category: Article
ISSN: 0340-6997
DOI: 10.1007/bf00257968

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✦ Synopsis

Bone imaging was done in patients after total replacement arthroplasty of the hip joint every 3rd month using 99mTc-HEDP and 18F. Uptake ratios were estimated over cup/normal hip and femur prosthesis/normal thigh. Ratios decline rapidly and reach a stable level 6-9 months, postoperatively. Eight cases of late infection were predicted correctly 1-3 months before any radiologic evidence was present. In four cases there had been false-positive results with 99mTc-HEDP while 18F gave always correct information except in cases of soft tissue inflammation. Here both 99mTc-HEDP and 18F ratios were elevated. The early diagnosis of late complications after replacement arthroplasty seems to be possible. The clinical significance, however, is low: only one out of eight patients with manifest infection is still on conservative treatment. Bone imaging should be done to exclude late infection as a cause of pain after total replacement arthroplasty of the hip joint only.

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