RESUMO
OBJECTIVE: To investigate the risk factors of hip osteoarthritisï¼HOAï¼ after hip arthroscopy in patients with femoro-acetabular impingementï¼FAIï¼ syndrome, and to reduce and prevent HOA. METHODS: From September 2018 to September 2020, 106 patients with FAI underwent hip arthroscopy, including 40 males and 66 females, aged from 20 to 55 years old with an average age of ï¼33.05±10.19ï¼ years old. The mechanism of injury included 51 cases for sports injury, 36 for traffic accidents, and 19 for blunt object injury. The duration of the disease ranged from 5 to 19 days with an average of ï¼12.02±3.69ï¼ days. All patients were followed up for 18 months. Patients were divided into HOA group ï¼23 casesï¼ and non-HOA group ï¼83 casesï¼ according to the occurrence of HOA. Multivariate Logistic regression was used to analyze the risk factors of HOA after hip arthroscopy in FAI patients. RESULTS: By univariate analysis, aged from 50 to 70 years old, female, body mass indexï¼BMIï¼> 30 kg·m-2, physical labor, cam type, postoperative infection, last follow-up hip degree of motion ï¼range of motion, ROMï¼ ï¼flexion, abduction, adduction, internal rotationï¼ and Tönnis grade 1 and above of the HOA group were higher than those of the non-HOA group ï¼P<0.05ï¼, and the relative appendicular skeletal muscle index ï¼RASMï¼ was lower than that of non-HOA groupï¼P<0.05ï¼. By multiple Logistic regression analysis, cam type, BMI>30 kg·m-2, last follow-up hip internal rotation ROM and Tönnis grade 1 were risk factors for HOA after hip arthroscopy in FAI patients ï¼P<0.05ï¼. CONCLUSION: FAI classification, body mass index, hip ROM and Tönnis grade are all related to HOA after hip arthroscopy in FAI patients. Follow-up and intervention should be strengthened in high-risk FAI patients to reduce the occurrence of HOA.