Bisphosphonate-associated femur fractures have high complication rates with operative fixation. Academic Article uri icon

Overview

abstract

  • BACKGROUND: Bisphosphonate-associated femur fractures have been well described but the preoperative patient factors, treatment modalities, and complications of treatment are unclear. QUESTIONS/PURPOSES: We asked whether a diagnosis of osteoporosis, the characteristic radiographic features of bisphosphonate-related femur fractures, and complication rates differed in patients with operatively treated femoral shaft fractures receiving bisphosphonates and in patients not receiving bisphosphonates. METHODS: We retrospectively reviewed 43 patients with bisphosphonate-associated femoral shaft fractures (including subtrochanteric) from 2002 to 2008 and 20 patients with similar fractures but not treated with bisphosphonates. Similar implants were used in both groups, but a greater number of adjuvants were used in the bisphosphonate cohort. We recorded preoperative osteoporosis and radiographic findings of the characteristic bisphosphonate femur fracture and early complications. The minimum followup was 5 months (mean, 29 months; range 5-60 months). RESULTS: Preoperatively a greater percentage of patients treated with bisphosphonates had confirmed osteoporosis than those not treated with bisphosphonates (24% versus 5%, respectively), a greater percentage had a proximal fracture location (48% versus 40%, respectively), and their mean cortex to shaft diameter ratio was greater (24% versus 15%, respectively). The bisphosphonate cohort had a higher rate of intraoperative fractures (21% versus 0%) and postoperative plate failures (30% versus 0%). CONCLUSIONS: Despite low rates of other risk factors and ample use of biologic adjuvants, patients treated with bisphosphonates having femur fractures have more complications. LEVEL OF EVIDENCE: Level III, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.

publication date

  • June 6, 2012

Research

keywords

  • Bone Density Conservation Agents
  • Diphosphonates
  • Femoral Fractures
  • Fracture Fixation, Internal
  • Osteoporosis
  • Osteoporotic Fractures
  • Postoperative Complications

Identity

PubMed Central ID

  • PMC3392377

Scopus Document Identifier

  • 84866447848

Digital Object Identifier (DOI)

  • 10.1007/s11999-009-0725-x

PubMed ID

  • 22669553

Additional Document Info

volume

  • 470

issue

  • 8