Implant Survival of 680 Consecutive EcoFit® Flat Single-Wedge Cementless Femoral Stems is Equivalent to the Taperloc® Total Hip Arthroplasty Series

Roškar, Samo; Antolič, Vane; Mavčič, Blaž

doi:10.1007/s43465-022-00733-1

Cited by 1 publication

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The periprosthetic fracture rate of ABG-II femoral stems was further compared to the previously published results of uncemented femoral stems Zweymüller SL-PLUS and EcoFit, used in the same tertiary hospital by the same group of surgeons [ 13 , 14 ]. It turned out the ABG-II femoral stem periprosthetic fracture rate 0.52 per 100 observed component-years (i.e., 48 postoperative periprosthetic fractures after 9291 component-years) in the presented study was considerably higher than Zweymüller SL-PLUS with 0.05 per 100 observed component-years (i.e., 11 postoperative periprosthetic fractures after 23,255 component-years [ 13 ]) or EcoFit with 0.19 per 100 observed component-years (i.e., 11 postoperative periprosthetic fractures after 5851 component-years [ 14 ]) and the difference was statistically significant p < 0.01 for both comparisons.…”

Section: Resultsmentioning

confidence: 99%

“…Revision rates due to periprosthetic fractures in the presented ABG-II femoral stem cohort were considerably higher from other uncemented femoral stems used in the same hospital by the same group of surgeons (University Medical Centre Ljubljana, Department of Orthopaedic Surgery) [ 13 , 14 ] in arthroplasty registries worldwide [ 16 , 17 ] or in other implant types [ 18 – 20 ]. The design setting of our study enabled adjustment for variability between surgeons in the multivariate analysis and clearly showed that the high ABG-II periprosthetic fracture rate was neither surgeon-dependent nor hospital-specific.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Surgeon-Stratified Periprosthetic Fracture Risk in a Single-Hospital Cohort of 1531 Uncemented ABG-II Femoral Stems at Primary Total Hip Arthroplasty

Kropivšek,

Antolič,

Mavčič

2023

JOIO

Self Cite

View full text Add to dashboard Cite

Purpose Late periprosthetic fracture risk with uncemented ABG-II femoral stems at primary total hip arthroplasty (THA) has been reported before, but single-hospital surgeon-stratified reports of this implant have never been published. We asked whether periprosthetic fracture rates of ABG-II femoral stems implanted at a single tertiary hospital depended on patients’ age, gender and the operating surgeon. Methods The study included 1531 consecutive primary ABG-II femoral stems implanted at a single tertiary hospital between January 1, 2012 and December 31, 2018. The Kaplan–Meier and Cox regression analyses were performed after 3.6–10.6 years of follow-up. Results In the cohort, we recorded 8 intraoperative, 22 early postoperative (within 90 days of implantation) and 26 late periprosthetic fractures (over 90 days postoperatively). The revision rate of ABG-II femoral stems was 5.1/100 component-years for early and 0.3/100 component-years for late periprosthetic fractures. The Kaplan–Meier cumulative probability of periprosthetic fracture was 2.1% at one, 2.3% at 2, 3.2% at 5, and 6.5% at 10 years after the implantation. Higher patient's age at operation was an independent risk factor of subsequent periprosthetic fracture (hazard ratio 1.07, 95% confidence interval 1.03–1.10; p < 0.01), regardless of the operating surgeon. Most of the fractured femora were Dorr type C (stovepipe). Conclusion The study presents the largest published ABG-II femoral stem cohort from a single hospital so far with 9291 component-years of observation. Periprosthetic fracture risk of ABG-II increased with patients’ age, had no variability between different surgeons, and was considerably higher from other uncemented femoral stems used at the same hospital. Level of Evidence III.

show abstract