Total Hip Arthroplasty (THA) Surgical Techniques Comparing the Direct Anterior Approach to the Posterior Approach

Barrett, William, M.D.

Status: Completed

Conditions: Osteoarthritis of the Hip

Treatments: Procedure: Anterior Approach / Posterior Approach; Procedure: Anterior versus Posterior Approach for total hip replacement

Study type: Interventional

Funder types: Industry

Identifiers

NCT01807104

20091819

Details and patient eligibility

About

The purpose of this study is to compare the short term effectiveness and return to function of subjects undergoing primary Total Hip Arthroplasty using an Anterior Approach (incision on the front part of the hip joint) versus Posterior Approach (incision over back part of the hip joint).

Full description

The anterior approach may provide better early post-operative outcomes because there are fewer muscles at the front of the hip so the surgeon works between them rather than cutting through muscle fibers. However, the anterior approach is more difficult to access so usually requires a specialized table.

The posterior approach is easier to access, but the incision cuts through muscle fiber. This may lengthen recovery time. However, a specialized table, which can be quite expensive, is often not required.

Enrollment: 87 patients

Sex: All

Ages: 20 to 75 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Subject is able to or capable of providing consent to participate in the clinical investigation.
2. Subject is between the ages of 20-75 years, inclusive.
3. Subject requires a cementless, primary total hip arthroplasty for non-inflammatory degenerative joint disease (NIDJD)
4. Subject has sufficient bone stock for the hip replacement device.
5. Subject is a suitable candidate for the devices specified in the clinical investigation plan and is willing to be randomized to either surgical approach.

Exclusion criteria

1. Subject in the opinion of the Investigator has an existing condition that would compromise his /her participation and follow-up in this investigation.
2. Subject has had previous surgery on the affected hip.
3. Subject has significant osteoarthritis of the contra-lateral hip requiring a total hip arthroplasty within 12 months.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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87 participants in 2 patient groups

Anterior Approach Total Hip

Active Comparator group

Description:

Total hip arthroplasty performed through an anterior surgical approach. Compare results of total hip arthroplasty performed through either an Anterior or Posterior Surgical Approach

Treatment:

Procedure: Anterior Approach / Posterior Approach

Posterior Approach Total Hip

Active Comparator group

Description:

The additional arm is the posterior approach total hip, which the Anterior Approach is being compared too. Compare results of total hip arthroplasty performed through either an Anterior or Posterior Surgical Approach.

Treatment:

Procedure: Anterior versus Posterior Approach for total hip replacement