Comparison of Muscle Atrophy After Direct Anterior & Posterior Total Hip Arthroplasty

ClinicalTrials.gov ID: NCT01636375

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Official title

The Influence of Operative Approach on Muscle Atrophy After Total Hip Arthroplasty: A Comparison of Anterior and Posterior Approaches

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This project is designed to use MRI to evaluate pre- and post-arthroplasty hips; the specific aims of this project are three-fold. First, the investigators intend to compare the amount of muscle atrophy and tendon damage that occurs around the hip between two commonly-used operative approaches: the direct-anterior approach and the posterior approach. Second, the investigators aim to provide baseline data on the amount of muscle atrophy and tendon damage that should reasonably be expected to occur with both of these approaches. Third, the investigators will document the degree of recovery of the periprosthetic soft tissues post-surgery in both patient groups. The investigators first hypothesis is that the posterior approach will demonstrate significantly more damage to the abductors, piriformis, and short external rotators than the direct anterior approach, which will demonstrate minimal soft tissue damage. The investigators second hypothesis is that both surgical approaches will cause some degree of baseline muscle damage and atrophy, in a predictable pattern. The investigators third hypothesis is that each of the surgical approaches inherently cause some degree of soft tissue damage, and that the periprosthetic soft tissues that are incised during the surgical exposure will recover in a predictable pattern which is consistent but unique within each group

Study identification

NCT ID: NCT01636375
Recruitment status: Completed
Study type: Observational
Phase: Not listed
Lead sponsor: Northwell Health; Other
Enrollment: 19 participants

Conditions and interventions

Conditions

Osteoarthritis, Hip

Interventions

Not listed

Eligibility (public fields only)

Age range: 18 Years to 75 Years
Sex: All
Healthy volunteers: Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: May 2012 (Type not available)
Primary completion: Jul 2021 (Actual)
Completion: Jul 2021 (Actual)
Last update posted: Nov 19, 2021

2012 – 2021

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
NorthShoreLIJ/LenoxHill Hospital	New York	New York	10075	—

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT01636375, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do: No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from: Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh: Last update posted Nov 19, 2021 · Synced Nov 14, 2026