General information
liver function abnormalities, idiopathic ONFH, femoral head necrosis, traumatic ONFH, pain, ONFH, alcoholic ONFH
GROUP B
A total of 36 patients met the selection criteria for inclusion in the study from March 2021 to July 2022. Three patients (3 hips) had mild liver function abnormalities during the course of the study. We reported this phenomenon to ethics committee, and they deemed it to have no serious impact on the trial. The 36 patients were divided into a trial group and two control groups. Biodegradable magnesium screws were implanted during PVIBGT in 12 patients (12 hips) in Group A. Common screws were implanted during PVIBGT in Group B (12 patients, 13hips). Iliac bone grafts were directly embedded during PVIBGT in Group C(12 patients, 12 hips).Group A consisted of 12 patients with a total of 12 affected hips, including 10 males (10 hips) and 2 females (2 hips) with an age range of 27–48 years with a mean age of 33 years. Of the 12 hips, 6 were ARCO stage II and 6 were stage III. The ONFH types were as follows: 3 cases of hormonal ONFH involving 3 hips, 3 cases of alcoholic ONFH involving 3 hips, 1 case of traumatic ONFH involving 1 hip, and 5 cases of idiopathic ONFH involving 5 hips. The duration of ONFH ranged from 1 to 25 months with a mean of 10 months.Group B included 12 patients with a total of 13 affected hips, consisting of 6 males (7 hips) and 6 females (6 hips). The age range was 18–43 years old with an average age of 29.9 years. Of the 13 hips, 6 were ARCO stage II and 5 were stage III. The ONFH types were as follows: 7 cases of hormonal ONFH involving 8 hips, 1 case of traumatic ONFH involving 1 hip, and 4 cases of idiopathic ONFH involving 4 hips. The duration of ONFH ranged from 1 to 25 months with a mean of 11 months.Group C comprised 12 patients with a total of 12 affected hips, including 10 males (10 hips) and 2 females (2 hips). The age range was 21–40 years old with a mean age of 31.9 years. The distribution of ARCO stage was 7 stage II and 5 stage III. The ONFH types were as follows: 3 cases of hormonal ONFH involving 3 hips, 5 cases of alcoholic ONFH involving 4 hips, and 4 cases of idiopathic ONFH involving 4 hips. The duration of ONFH ranged from 1 to 24 months with a mean of 6 months.Among the 36 subjects in our study, 19 patients had bilateral femoral head necrosis. Only one patient underwent bilateral PVIBGT due to the severity of their condition, significant pain, and strong demand for surgery. There maining 18 subjects underwent unilateral PVIBGT. For the 18hip joints with bilateral femoral head necrosis that did not undergo PVIBG, we adopted conservative treatment based on their conditions: avoid weight-bearing for three months.The differences were not statistically significant (Comparison of clinical data of the three groups of patientsThere were no statistic difference among Group A, B and C