An investigation of balance, muscle activation patterns and gait after total hip or knee replacement surgery.

Not Applicable

Completed

• Conditions: Hip or knee arthroplasty; Physical Medicine / Rehabilitation - Physiotherapy; Musculoskeletal - Other muscular and skeletal disorders

• Registration Number: ACTRN12609000766213
• Lead Sponsor: The University of Queensland

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2009-09-03
• Last Update Posted: 13 January 2020

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

subgroup from RCT:
- be booked for total hip replacement (THR) or total knee replacement (TKR) surgery and already given consent to take part in the randomised controlled trial
- able to travel to research laboratory before and after surgery
healthy community-dwelling elders
- no musclo-skeletal or neurological conditions that effect mobility or balance

Exclusion Criteria

- insufficient time before hospital admission to attend research laboratory for pre-op assessment
- live too far from research laboratory so travel to laboratory day 14 after surgery not possible

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
muscle onset time of gluteus medius and tensor fascia lata relative to prime mover measured during stepping task using electromyography (EMG)[pre-operative, then day 14, day 90 and day 180 post-operatively];reaction time and step time measured with the forceplate during stepping task[pre-operative, then day 14, day 90 and day 180 post-operatively];single support time and step length measured with computerised gait system[pre-operative, then day 14, day 90 and day 180 post-operatively]

Secondary Outcome Measures

Name	Time	Method
muscle onset time of vastus medialis and vastus lateralis measured relative to prime mover for stepping, using EMG recorded during stepping task[pre-operative, then day 14, day 90 and day 180 post-operatively];gait velocity measured using the computerised gait system[pre-operative, then day 14, day 90 and day 180 post-operatively]