The Journal of Arthroplasty
Volume 22, Issue 4 , Pages 490-495, June 2007

Comparison of Immediate Postoperative Walking Ability in Patients Receiving Minimally Invasive and Standard-Incision Hip Arthroplasty:

A Prospective Blinded Study

  • Damien Bennett, PhD

      Affiliations

    • Gait Analysis Laboratory, Musgrave Park Hospital, Belfast, Northern Ireland
    • Corresponding Author InformationReprint requests: Damien Bennett, PhD, Gait Analysis Laboratory, Central Remedial, Clinic, Vernon Avenue, Clontarf, Dublin 3, Ireland.
    • ,
  • Luke Ogonda, MRCS

      Affiliations

    • Orthopaedic Outcomes Unit, Musgrave Park Hospital, Belfast, Northern Ireland
    • ,
  • David Elliott

      Affiliations

    • University of Ulster, Jordanstown, Newtownabbey, Northern Ireland
    • ,
  • Lee Humphreys, Dip(Physio)

      Affiliations

    • Physiotherapy Department, Musgrave Park Hospital, Belfast, Northern Ireland
    • ,
  • Marie Lawlor, BSc(Hons)

      Affiliations

    • Physiotherapy Department, Musgrave Park Hospital, Belfast, Northern Ireland
    • ,
  • David Beverland, MD

      Affiliations

    • Orthopaedic Outcomes Unit, Musgrave Park Hospital, Belfast, Northern Ireland

Received 15 August 2005; accepted 26 February 2006. published online 20 April 2007.

Abstract 

Minimally invasive hip arthroplasty is thought to result in less soft tissue damage, earlier ambulation, and improved rehabilitation. This prospective blinded cohort study objectively analyzed early functional walking ability by stride analysis 2 days postoperatively. Ninety-five patients were analyzed, 43 of who received the minimal incision and 52 the traditional incision. Patients, physiotherapists, and assessors were blinded to the incision used. Velocity, cadence, stride length, operated and nonoperated limb step-length, and the ratio of step length of the operated to nonoperated limbs were recorded. No significant differences in any of these variables were shown between the minimal-incision and traditional-incision groups. This study demonstrates no functional benefits of the minimally invasive incision over the standard one in terms of early walking ability.

Key words: minimally invasive hip arthroplasty, temporospatial parameters, stride analysis, prospective blinded trial

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 Benefits or funds were received in partial or total support of the research material described in this article from Depuy International Ltd.

PII: S0883-5403(06)00471-2

doi:10.1016/j.arth.2006.02.173

The Journal of Arthroplasty
Volume 22, Issue 4 , Pages 490-495, June 2007

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