Title of article :
Substantially higher prevalence of postoperative peri-prosthetic fractures in octogenarians with hip fractures oper-ated with a cemented, polished tapered stem rather than an anatomic stem
Author/Authors :
MUKKA, Sebastian Department of Orthopedics - Sundsvall Hospital, Sundsvall , MELLNER, Carl Department of Orthopedics - Sundsvall Hospital, Sundsvall , KNUTSSON, Björn Department of Orthopedics - Sundsvall Hospital, Sundsvall , SAYED-NOOR, Arkan Department of Orthopedics - Sundsvall Hospital, Sundsvall , SKÖLDENBERG, Olof Department of Orthopedics - Danderyd Hospital and Karolinska Institutet, Stockholm
Pages :
5
From page :
257
To page :
261
Abstract :
Background and purpose — Recent studies have demonstrated a high incidence of postoperative periprosthetic femoral fracture (PPF) in elderly patients treated with 2 commonly used cemented, polished tapered stems. We compared the prevalence and incidence rate of PPF in a consecutive cohort of octagenerians with femoral neck fractures (FNFs) treated with either a collarless, polished tapered (CPT) stem or an anatomic matte stem (Lubinus SP2). Patients and methods — In a multicenter, prospective cohort study, we included 979 hips in patients aged 80 years and above (72% females, median age 86 (80–102) years) with a femoral neck fracture as indication for surgery. 69% of the patients were clas- sifi ed as ASA class 3 or 4. Hip-related complications and repeat surgery were assessed at a median follow-up of 20 (0–24) months postoperatively. Results — 22 hips (2.2%) sustained a PPF at a median of 7 (0–22) months postoperatively; 14 (64%) were Vancouver B2 fractures. 7 of the 22 surgically treated fractures required revision surgery, mainly due to deep infection. The cumulative incidence of PPFs was 3.8% in the CPT group, as compared with 0.2% in the SP2 group (p < 0.001). The risk ratio (RR) was 16 (95% CI: 2–120) using the SP2 group as denominator. Interpretation — The CPT stem was associated with a higher risk of PPF than the SP2 stem. We suggest that the tapered CPT stem should not be used for the treatment of femoral neck fractures in patients over 80 years.
Keywords :
octogenarians , postoperative peri-prosthetic fractures , anatomic stem , polished tapered stem
Journal title :
Acta Orthopaedica
Serial Year :
2016
Full Text URL :
Record number :
2618128
Link To Document :
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