Periprosthetic fractures around hip hemiarthroplasty performed for hip fracture

J R A Phillips1, C G Moran, A R J Manktelow

  • 1Department of Trauma and Orthopaedics, Queen's Medical Centre, Nottingham University Hospitals, Derby Road, UK. jonphillips99@hotmail.com

Injury
|October 30, 2012
PubMed

Insights

Periprosthetic fractures after hip hemiarthroplasty are a serious complication in elderly patients, with a 1.7% incidence. Outcomes are generally satisfactory, though fracture around uncemented Austin Moore prostheses shows higher rates.

Area of Science:

  • Orthopedic Surgery
  • Geriatric Trauma
  • Biomaterials Engineering

Background:

  • Hip fractures are common in the elderly, leading to significant morbidity and mortality.
  • Periprosthetic fractures following hip hemiarthroplasty represent a challenging complication in this patient population.

Purpose of the Study:

  • To review institutional experience with periprosthetic fractures after hip hemiarthroplasty.
  • To determine the incidence, outcomes, and risk factors associated with these fractures.

Main Methods:

  • A cohort of 79 patients with periprosthetic fractures post-hemiarthroplasty was identified from a prospective database.
  • Fractures were classified using the Vancouver system, and treatment strategies (ORIF, revision, non-operative) were analyzed.
  • Outcome measures included fracture union, mortality, infection rates, and need for further surgery.

Main Results:

  • The incidence of periprosthetic fracture was 1.7%, with a higher rate (2.3%) associated with uncemented Austin Moore stems compared to cemented Exeter stems (0.5%).
  • Mortality rates were substantial: 11% within 1 month, 34% by 1 year, and 49% by 2 years.
  • Fracture union was achieved in 97% of cases, with low rates of nonunion (3%) and deep infection (4%).

Conclusions:

  • Periprosthetic fractures after hip hemiarthroplasty can be managed with satisfactory outcomes regarding union and complications.
  • The study established an institutional incidence of 1.7% and highlighted an increased risk of fracture around uncemented Austin Moore prostheses.
  • Mortality remains a significant concern in this elderly, frail patient group.
Abstract