Posterolateral Surgical Approach Compared With Modified Lateral Approach

NCT00936949 | Completed DMC

• 1 other identifier: SNU 03-01
• Study Type: interventional
• Target: 196
• Locations: 1 country
• Sites: 1

Brief Summary

It has been reported that the operative approaches have an effect on clinical outcome in total hip arthroplasty. The purpose of this prospective study was to compare clinical and radiological outcomes between anterolateral approach and posterolateral approach in total hip arthroplasty.

Conditions

Arthroplasty, Replacement, Hip

Keywords

total hip arthroplasty; posterolateral; modified lateral

Outcome Measures

Primary Outcomes (1)

• to examine the null hypothesis that the dislocation rate for the posterior approach with capsular repair was similar to modified lateral approaches for total hip arthroplasty at up to 2 year followup

  up to 2 years

Secondary Outcomes (1)

• to determine whether there was a difference in surgical parameters, component positioning, and clinical results of the modified lateral approach compared with the posterolateral approach.

  Routine follow-up visits were scheduled for six weeks, three, six, nine, twelve months, and yearly thereafter

Study Arms (2)

posterolateral approach

ACTIVE COMPARATOR

The posterolateral approach was described by many authors, but all share a common muscular interval in reference to the gluteus medius tendon. Using a gluteus maximus split, the posterolateral approach remains posterior to the gluteus medius and minimus. Exposure of the hip and proximal femur requires division of the posterior hip capsule and the external rotators. The exposure and dislocation are completed with flexion and internal rotation of the femur. After arthroplasty, the external rotators and posterior capsule was routinely repaired using a heavy absorbable suture.

Procedure: surgical approach

modified lateral approach

ACTIVE COMPARATOR

The operative technique described modified lateral approach as described by Mulliken et al.

Procedure: modified lateral approach

Interventions

surgical approach PROCEDURE

Using a gluteus maximus split, the posterolateral approach remains posterior to the gluteus medius and minimus. Exposure of the hip and proximal femur requires division of the posterior hip capsule and the external rotators. The exposure and dislocation are completed with flexion and internal rotation of the femur. After arthroplasty, the external rotators and posterior capsule was routinely repaired using a heavy absorbable suture.

Also known as: posterolateral approach

posterolateral approach

modified lateral approach PROCEDURE

The operative technique described modified lateral approach as described by Mulliken et al.

modified lateral approach

Eligibility Criteria

• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• osteonecrosis
• primary or secondary osteoarthritis of the hips
• femoral neck fracture.

You may not qualify if:

• Patients with previous hemi- or total hip arthroplasty
• highly dislocated or severe ankylosed hip
• patients who are considered potentially unreliable or who may not reliably attend study visits

Sponsors & Collaborators

• Seoul National University Bundang Hospital: lead

Study Sites (1)

Seoul national University Bundang Hospital

Seongnam-si, Gyeonggi-do, 463-707, South Korea

Location

Study Officials

• Kyung-Hoi Koo, professor

  Seoul National University Bundang Hospital

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER

Study Record Dates

• First Submitted: July 7, 2009
• First Posted: July 10, 2009
• Study Start: July 1, 2003
• Primary Completion: December 1, 2008
• Study Completion: December 1, 2008
• Last Updated: March 8, 2013

Record last verified: 2009-07

Locations

KR (1)