Radiographic comparison of two glenoid preparation techniques in total shoulder arthroplasty.
We compared the prevalence of periglenoid radiolucencies between two glenoid component preparation techniques used in total shoulder arthroplasties. Seventy-two consecutive patients with primary osteoarthritis had total shoulder arthroplasties using one prosthetic system with flat-back keeled polyethylene glenoid components. Thirty-seven shoulders had glenoid implants that were cemented after standard curettage preparation of the keel slot. Thirty-five shoulders had glenoid implants that were cemented after using bone compaction to prepare the keel slot. The immediate postoperative and 2-year postoperative radiographs were examined to evaluate the presence and progression of periglenoid radiolucencies. The curettage group had a higher rate (38%) of keel radiolucencies than the compaction group (11%) seen on the immediate postoperative radiographs. Both groups had progression of periglenoid radiolucencies with time. Progression of the radiolucent lines was worse in the curettage group 2 years after arthroplasty. Preparation of the glenoid component keel slot with the bone compaction technique seems to achieve better fixation of flat-back keeled polyethylene glenoid components in total shoulder arthroplasties.
Szabo
Istvan
I
Department of Orthopaedic Surgery, University of Pécs School of Medicine, Pécs, Hungary.
Buscayret
Florent
F
Edwards
T Bradley
TB
Nemoz
Chantal
C
O'Connor
Daniel P
DP
Boileau
Pascal
P
Walch
Gilles
G
D000328:Adult; D000368:Aged; D019643:Arthroplasty, Replacement / Q000379:methods*; D018450:Disease Progression; D005260:Female; D006801:Humans; D007595:Joint Prosthesis; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography; D012785:Shoulder Joint / Q000000981:diagnostic imaging / Q000601:surgery*