Impending atypical femoral fractures associated with bisphosphonates: postoperative diagnosis after hip prosthesis. Clinical cases presentation

Acta Biomed. 2022 Sep 21;93(S1):e2022257. doi: 10.23750/abm.v93iS1.13084.

Abstract

Background and aim: Number of hip prosthesis implants in arthritis, number of patients treated with bisphosphonates to prevent fragility fractures and, together, number of atypical femoral fracture's cases are increasing.

Case series: This article describes two cases of hip arthritis, treated with hip replacement, in patients using bisphosphonates for a long time; in both cases an incomplete atypical femoral fracture was misdiagnosed before the surgery. Authors describe the importance to carry out a complete osteometabolic and radiographic pre-operative examination of patients in treatment with bisphosphonates going to hip replacement, to check the possible presence of incomplete atypical femoral fracture and to optimize surgical and pharmacological treatment.

Conclusions: In hip prosthesis surgery, prior diagnosis of incomplete atypical femoral fractures can indicate the choice of a different kind of prosthesis stem to optimize surgical results. This can also positively impact to rehabilitation in term of duration and daily activities recovery.

MeSH terms

  • Arthritis* / chemically induced
  • Arthritis* / drug therapy
  • Arthritis* / surgery
  • Arthroplasty, Replacement, Hip* / adverse effects
  • Arthroplasty, Replacement, Hip* / methods
  • Diphosphonates / adverse effects
  • Femoral Fractures* / diagnostic imaging
  • Femoral Fractures* / etiology
  • Femoral Fractures* / surgery
  • Hip Fractures* / surgery
  • Hip Prosthesis* / adverse effects
  • Humans
  • Retrospective Studies

Substances

  • Diphosphonates