Direct Anterior Approach (DAA) for Total Hip Arthroplasty (THA): Capsular Resection Versus Capsular Flap Retention

Status

Completed

Phases

Phase 1

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02970253

Enrollment

190

Registered

2016-11-21

Start date

2017-11-01

Completion date

2019-12-31

Last updated

2020-02-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coxarthritis

Brief summary

Direct Anterior Approach (DAA) for Total Hip Arthroplasty (THA): Capsular resection versus capsular flap retention. Prospective study design comparing clinical data in randomized THA patients who either had capsular resection or capsular flap retention.

Interventions

PROCEDURECapsular resection

Capsular resection

PROCEDURECapsular retention

Capsular retention

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Healthy volunteers

Yes

Inclusion criteria

* primary THA

Exclusion criteria

* neurologic disease * painful contralateral THA * severe back or knee pain * rheumatology

Design outcomes

Primary

Measure	Time frame	Description
Clinical data will be measured with scoring list HHS (Harris Hip Score).	One year	Hypothesis: No clinical difference in DAA using capsular resection vs retention. Clinical outcomes will be measured with scoring list HHS (Harris Hip Score).
Clinical data will be measured with scoring list UCLA (University of California Los Angles activity score).	One year	Hypothesis: No clinical difference in DAA using capsular resection vs retention. Clinical outcomes will be measured with scoring list UCLA ((University of California Los Angles activity score).
Clinical data will be measured with scoring list WOMAC (The Western Ontario and McMaster Universities Arthritis Index).	One year	Hypothesis: No clinical difference in DAA using capsular resection vs retention. Clinical outcomes will be measured with scoring list WOMAC (The Western Ontario and McMaster Universities Arthritis Index).
Clinical data will be measured with scoring list HOOS (Hip dysfunction and Osteoarthritis Outcome Score).	One year	Hypothesis: No clinical difference in DAA using capsular resection vs retention. Clinical outcomes will be measured with scoring lists HOOS (Hip dysfunction and Osteoarthritis Outcome Score).

Countries

Belgium

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026