Cementless hemiarthroplasty in femoral neck fractures: evaluation of clinical results and measurement of migration by EBRA-FCA

Arch Orthop Trauma Surg. 2006 Aug;126(6):380-6. doi: 10.1007/s00402-006-0133-6. Epub 2006 Mar 24.


Aim of the present study was to evaluate migration rates of cementless primary hemiarthroplasty in acute femoral neck fractures. In a longitudinal, prospective study 46 patients were treated by cementless hemiarthroplasty. Clinical follow up was correlated with the EBRA-FCA method. In 30% of all patients stem migration amounted to more than 2 mm; further, these patients were seen to have a high level of activity. A high degree of migration in more than 30% of all patients requires critical scepticism toward further use of the investigated cementless stem as hemiarthroplasty. According to literature, migration of more than 2 mm suggests a high probability of early aseptic loosening. In patients with a low degree of activity good results could be observed; nevertheless, in patients with a high level of activity the combination of the investigated cementless stem with a solid fracture head cannot be recommended.

Publication types

  • Evaluation Study

MeSH terms

  • Aged
  • Aged, 80 and over
  • Arthroplasty, Replacement / instrumentation
  • Arthroplasty, Replacement / methods*
  • Female
  • Femoral Neck Fractures / surgery*
  • Humans
  • Longitudinal Studies
  • Male
  • Middle Aged
  • Motor Activity
  • Prospective Studies
  • Prosthesis Failure*
  • Treatment Outcome