Total hip arthroplasty using large-diameter metal-on-metal articulation in patients with neuromuscular weakness

J Arthroplasty. 2014 Apr;29(4):797-801. doi: 10.1016/j.arth.2013.08.012. Epub 2013 Sep 17.

Abstract

The purpose of this prospective study was to evaluate the clinical and functional outcomes of THA using large-diameter metal-on-metal articulation in patients with neuromuscular weakness. Nineteen consecutive patients (19 hips) with neuromuscular weakness and displaced femoral neck fractures were enrolled. Functional improvement and recovery, radiological evaluation of THA and surgical morbidity were assessed. Mean Harris hip and WOMAC scores at final follow-up were 81.0 and 42.9, respectively. At final follow-up, no dislocation, metal hypersensitivity, or osteolysis was observed and no patient required revision of THA. The findings of this study indicate that the functional results of THA using large-diameter metal-on-metal articulation in patients with neuromuscular weakness can produce satisfactory outcomes with early functional recovery and a low dislocation rate.

Keywords: metal-on-metal; neuromuscular weakness; total hip arthroplasty.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Aged, 80 and over
  • Arthroplasty, Replacement, Hip / instrumentation*
  • Biocompatible Materials
  • Cerebrovascular Disorders / complications
  • Female
  • Femoral Neck Fractures / complications
  • Femoral Neck Fractures / surgery*
  • Hip Prosthesis*
  • Humans
  • Male
  • Metals
  • Middle Aged
  • Neuromuscular Diseases / complications
  • Neuromuscular Diseases / surgery*
  • Parkinson Disease / complications
  • Prospective Studies
  • Prosthesis Design
  • Recovery of Function
  • Treatment Outcome

Substances

  • Biocompatible Materials
  • Metals