Mid term radiological evaluation of an humeral press-fit stem

Introduction: The choice ot o press-tit or cemented humerol stem in shoulder replocement is still uncieor. Press-tit stem provide o better primory iixotion ond presenre o good bone stock in cose ot revision, but loosening [clinicol or rodiologicol) seems to be on importont issue to consider. Aim: The oim ot this study is to evoluote ot o mid tollow up the rodiologicol outcome ot o press-tit humerol stem in shoulder replocement Methods: We reviewed ata mean FU ot 7.2 years (48-144 months) l26 shoulder replacements (23 hemy, 43 total and 60 reverse). All The patients were evaluated with series ot radiographs preop, postop and at final tollow up and in case of persis- tant pain we asl< tor a scintigraphy. We specitically looi< tor radiological sign of loosening (radiolucent lines, progression ot radiolucent lines and any change ot position of the stem). Results: l\lone ot The stem were revised. l·lovewer 2l patients were revised tor ditterent reasons: l4 were converted tram hemy or total shoulder artroplasty to reverse, 7 were Treated with a spacer atter a sepsis. We found 4 patients with a positive scintigraphy tor aseptic loosening ot The implant, but The patients didn't want to have a revision. Many patients (96) had ra- diolucent lines lesser Than 2 mm but in 65 ot This group The radiotucent lines were present at the tirst radiograph. Conclusion: We concluded that press-tit humeral stem is stable option in shoulder arthoplasty.