Preventing Impingement in Total Hip Arthroplasty

Recruiting

• Conditions: Hip osteoarthritis; Musculoskeletal Diseases; Coxarthrosis [arthrosis of hip]

• Registration Number: ISRCTN40548578
• Lead Sponsor: niversity of Warwick (UK)

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2013-03-20
• Last Update Posted: 13 January 2015

Recruitment & Eligibility

• Status: Recruiting
• Sex: Not specified
• Target Recruitment: 108

Inclusion Criteria

1. Patients aged older than 18 years, either sex who are able to give informed consent
2. Patients undergoing primary total hip replacement with a cementless femoral stem.
3. Patients who are physically fit to undergo surgery

Exclusion Criteria

1. Patients with concomitant medical problem that will preclude operation
2. Patients with abnormal hip anatomy
3. Patients with spinal deformity

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The proportion of patients in each group who have calculated impingement (calculated in virtual model from the precise orientation of that patient`s hip replacement measured during surgery) inside the intended impingement-free range of movement.<br><br>Measured at baseline, six week and twelve months.

Secondary Outcome Measures

Name	Time	Method
1. Oxford Hip Score<br>2. UCLA<br>3. EuroQol EQ-5D<br>4. Disability rating index<br>5. Clinical leg length and Range of Movement<br>6. Analysis of lysis / ingrowth patterns in Gruen zones (using AP pelvis for hips and lateral radiographs<br><br>Measured at baseline, six week and twelve months.