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Sequential Tc-99m MDP Bone Scans After Cementless Total Hip Arthroplasty in Asymptomatic Patients

Authors
 KIM, HEE SOO  ;  SUH, JIN-SUCK  ;  HAN, CHANG DONG  ;  KIM, YOUNG-HOO  ;  LEE, JONG DOO 
Citation
 CLINICAL NUCLEAR MEDICINE, Vol.22(1) : 6-12, 1997 
Journal Title
 CLINICAL NUCLEAR MEDICINE 
ISSN
 0363-9762 
Issue Date
1997
MeSH
ㅍBone Cements ; Female ; Follow-Up Studies ; Hip Prosthesis* ; Humans ; Male ; Middle Aged ; Prospective Studies ; Prosthesis Failure* ; Technetium Tc 99m Medronate* ; Time Factors
Abstract
PURPOSE: To evaluate the distribution and degree of radioactivity on sequential Tc-99m methylene diphosphonate (Tc-99m MDP) scans in the diagnosis of postoperative loosening in asymptomatic patients who underwent cementless total hip replacement. MATERIAL AND METHODS: Tc-99m MDP scans were obtained every three months where possible, for one year in those patients who underwent total hip replacement using a Harris Galante cementless prosthesis. Eighty-three scans from 45 patients were obtained. Uptake was assessed within the five periprosthetic zones (zone 1: greater trochanter; 2: lateral stem of the prosthesis; 3: tip of the prosthesis; 4: medial stem of the prosthesis; and 5: lesser trochanter) using an arbitrary 5-point grading system. Grade 1 indicated normal uptake and Grade 5 indicated highest uptake. The grade of uptake within each zone was then analyzed against their postoperative ages. RESULTS: The radioactivity regressed to Grade 1 or 2 from Grade 4 or 5 within 12 months after cementless total hip replacement in 87.5% and 93.8% of patients in zones 2 and 4, respectively. Even though the radioactivity within zones 1, 3, and 5 tended to decrease, persistent elevation of activity (over grade 2) lasted up to 12 months after surgery in 31% or 37% of the patients. CONCLUSION: The radioactivity after cementless total hip replacement tended to regress in proportion to the postimplant age. The regression rate varied depending on the periprosthetic zones.
Full Text
https://insights.ovid.com/crossref?an=00003072-199701000-00002
DOI
10.1097/00003072-199701000-00002
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Nuclear Medicine (핵의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학교실) > 1. Journal Papers
Yonsei Authors
Suh, Jin Suck(서진석) ORCID logo https://orcid.org/0000-0001-9455-9240
Lee, Jong Doo(이종두)
Han, Chang Dong(한창동)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/177292
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