The Journal of Hip Surgery 2020; 04(01): 033-037
DOI: 10.1055/s-0040-1708538
Original Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Perioperative Fracture Risk and Two-Year Survivorship of a Short Tapered Femoral Stem following Direct Anterior Approach Cementless Total Hip Arthroplasty with a Fracture Table

1   Bone and Joint Center, Straub Medical Center, Honolulu, Hawaii
2   Department of Surgery, University of Hawai'i at Manoa, Honolulu, Hawaii
,
Gregory J. Harbison
3   John A. Burns School of Medicine, Honolulu, Hawaii
,
Ian Hasegawa
2   Department of Surgery, University of Hawai'i at Manoa, Honolulu, Hawaii
,
Emily Unebasami
1   Bone and Joint Center, Straub Medical Center, Honolulu, Hawaii
4   Department of Neuroscience and Behavior, University of Notre Dame, Notre Dame, Indiana
,
Cass Nakasone
1   Bone and Joint Center, Straub Medical Center, Honolulu, Hawaii
2   Department of Surgery, University of Hawai'i at Manoa, Honolulu, Hawaii
› Author Affiliations
Further Information

Publication History

06 December 2019

04 February 2020

Publication Date:
23 March 2020 (online)

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Abstract

The cementless, tapered wedge, short femoral stem implant is commonly used in direct anterior approach (DAA) total hip arthroplasty (THA). The lack of access and visualization, however, may increase the risk of perioperative fracture and early failure. Therefore, the current study examined perioperative complications and 2-year implant survivorship following DAA THA performed using a fracture table and short, tapered wedge femoral stem. A retrospective analysis was conducted on patients having undergone DAA THA with a cementless, tapered wedge, short femoral stem. Perioperative fractures were noted and survivorship was determined by the incidence of revision surgery within a minimum 2-year follow-up period. A total 366 consecutive patients (441 hips) were identified in the cohort. Four patients (6 hips; 1.4%) were lost to follow-up and three patients died from unrelated causes. Average follow-up time for the remaining 359 patients (435 hips) was 32.9 ± 10.2 months. There were no intraoperative factures but three perioperative fractures within two weeks. Aseptic loosening occurred in one stem at 13 months, resulting in a 99.1% survival rate with a mean survival time of 23.8 ± 0.1 months (95% confidence interval: 23.6–24.0 months). The use of a short, tapered wedge femoral stem and a fracture table for DAA THA resulted in 0.7% periprosthetic fractures and only one aseptic loosening within 2 years. These results suggest that proper femoral exposure with the use of a fracture table and a short, tapered wedge femoral stem does not appear to increase the risk of periprosthetic femoral fracture.