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The relationship between retractor placement in different locations of total hip arthroplasty via direct anterior approach and free electromyography potential of femoral nerve and femoral nerve palsy

The relationship between retractor placement in different locations of total hip arthroplasty via direct anterior approach and free electromyography potential of femoral nerve and femoral nerve palsy

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2000035080
Enrollment
Unknown
Registered
2020-07-30
Start date
2020-09-01
Completion date
Unknown
Last updated
2020-08-03

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

Conditions

End stage hip disease

Interventions

case series:Nil

Sponsors

Department of Orthopaedics surgery, West China Hospital of Sichuan University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients who need primary total hip arthroplasty due to severe hip osteoarthritis, osteonecrosis of the femoral head, and osteoarthritis secondary to developmental dysplasia of the hip; 2. Patients aged 18-80 years old; 3. The preoperative American Society of anesthesiologists (ASA) grade (anesthesia risk assessment) was grade I ~ III.

Exclusion criteria

Exclusion criteria: 1. Patients who are allergic to drugs used in the experiment; 2. Patients with language disorder and unable to complete various questionnaire scores; 3. Patients with limb neuropathy on the operative side; 4. Patients with mental illness; 5. Patients with one-stage bilateral total hip arthroplasty; 6. Patients with severe osteoporosis; 7. Patients with history of hip surgery before primary replacement; 8. Patients with osteoarthritis secondary to hip infection after cure; 9. Patients with wide iliac wing or bone defect in the posterior wall of acetabulum.

Design outcomes

Primary

MeasureTime frame
Femoral nerve potential detected by Free emG.;Quadriceps strength;Complications associated with femoral nerve injury;

Countries

China

Contacts

Public ContactPengde Kang

West China Hospital of Sichuan University

kangpengd@163.com+86 18280213153

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026