Efficacy evaluation index
Blood loss, Pain, blood loss, muscle injury, pain, HHS, abduction
BLOOD LOSS, BLOOD LOSS, INTRAOPERATIVE BLOOD LOSS, COMPLICATIONS, INFLAMMATORY RESPONSE
All patients were followed up in the orthopedics unit of the Lishui People’s Hospital, Lishui, China. The general operation situation, serum markers, blood loss, pain score, hip function and prosthesis location analysis were evaluated between the two groups. The postoperative outcomes were assessed at 1-week, 1-month, 3-month, 6-month and 12-month follow-up intervals after the operation. All data were collected by a research fellow and a postgraduate student, not by the operating surgeon. One-year follow-up was the primary endpoint. Patient demographic characteristics were collected, including age, sex, side, body mass index, and American Society of Anesthesiologists (ASA) class. The following indicators were used to assess the functional outcome of the two groups. (1) General operation situation: operation time, intraoperative blood loss, incision length, hospitalization time and the occurrence of surgery-related complications; (2) serum markers: inflammatory response indicators [C-reactive protein (CRP) level, erythrocyte sedimentation rate (ESR) level] and muscle injury indicators [creatine kinase (CK) level]. These serum markers were collected for each patient on the day of hospital admission, and postoperative Days 1, 3, and 7. (3) Blood loss: Hemoglobin (Hb) and hematocrit (HCT) level were collected for each patient on the day of hospital admission, and postoperative days 1, and 3. Drainage tubes were routinely placed in each patient, the drainage tube was removed and the drainage volume was recorded on the first postoperative day. (4) Pain and hip function: visual analog scale (VAS) scores were collected on the day of hospital admission, postoperative days 1, 3, and 7, and 1 month, 3 months, 6 months, and 12 months after surgery. The HHS was evaluated one week, 1 month, 3 months, 6 months, and 12 months postoperatively. (5) Component placement analysis: All postoperative anteroposterior pelvic radiographs were standardized with the patient in the supine position and the radiation beam was focused on the pubic symphysis with a focal length of 100 cm. The abduction angle and anteversion angle were measured on anteroposterior pelvic radiographs according to the method described by Bachhal et al. [