Group D:No

2 trials

Sponsors

The First Affiliated Hospital of Zhengzhou University, Dalian Medical University Affiliated Second Hospital

Conditions

All diseasesMeniscus injury

Phase 1

Observation on the analgesic effect of different concentrations of ropivacaine for ultrasound-guided popliteal artery and knee joint posterior capsule space block after knee arthroscopic meniscectomy

RecruitingChiCTR2300075807

Dalian Medical University Affiliated Second HospitalMeniscus injury

Start: 2023-09-17Updated: 2023-09-18

Unknown Phase

Timing of elective surgery and postoperative complications following novel coronavirus infection: a retrospective observational cohort study

Active, not recruitingChiCTR2300070738

The First Affiliated Hospital of Zhengzhou UniversityAll diseases

Start: 2023-04-30Updated: 2023-06-04