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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT03728920
Other study ID # SMASH V9
Secondary ID
Status Not yet recruiting
Phase
First received
Last updated
Start date January 10, 2019
Est. completion date December 1, 2019

Study information

Verified date October 2018
Source Cambridge University Hospitals NHS Foundation Trust
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Hypothesis We hypothesise that hip muscle strength can predict the outcome of hip arthroscopy. A relationship between strength and outcome can improve the success of the procedure and avoid unnecessary and potentially harmful surgery.

Objectives The primary objective is to evaluate the relationship between hip muscle strength and outcomes of hip arthroscopy. The secondary objective is to determine a 'threshold strength' above which the operation becomes successful. If this relationship is established, it would launching a randomised control trial with targeted physiotherapy as the intervention.

Background Hip arthroscopy is key-hole surgery to the hip joint which is performed for femoroacetabular impingement; a condition which describes a shape mismatch between the ball-and-socket hip joint. The number of procedures is increasing, however, studies have shown success in only half of patients undergoing the procedure.

Several factors have been linked with outcomes; however, the influence of muscle strength has never been investigated. We performed a systematic review of this topic, revealing that muscles around affected hips are significantly weaker. We also developed a standardised protocol for the measurement of muscle strength.

Plan Patients awaiting hip arthroscopy will undergo muscle strength testing pre- and post-operatively. There will be no deviation of treatment from their NHS care. Validated outcome measure questionnaires will be completed at five months post-operatively. Magnetic resonance imaging and electromyography tests will be performed on a subset of patients post-operatively.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 30
Est. completion date December 1, 2019
Est. primary completion date August 1, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years to 45 Years
Eligibility Inclusion Criteria:

- Patients aged 18-45 years with evidence of FAI on MRI scan (the standard method of imaging of the condition in the NHS)

- Competent to consent to study participation

Exclusion Criteria:

- Established osteoarthritis with evidence of osteophytes (Tonnis grade >2)

- Patient with hip dysplasia (centre-edge-angle <20 degrees)

- Patients with full thickness cartilage (chondral) lesions

- Previous diagnosis of mental health disorder

- Failure to comply with Addenbrooke's hospital post-operative rehabilitation exercises tailored to hip arthroscopy

Study Design


Intervention

Other:
Muscle strength measurement
Patients awaiting hip arthroscopy will undergo muscle strength testing pre- and post-operatively. There will be no deviation of treatment from their NHS care. Validated outcome measure questionnaires will be completed at five months post-operatively. Magnetic resonance imaging and electromyography tests will be performed on a subset of patients post-operatively.

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Cambridge University Hospitals NHS Foundation Trust

Outcome

Type Measure Description Time frame Safety issue
Primary Hip Outcome Score Patient reported outcome measure to assess the success of hip arthroscopy 6 months post-operatively
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