Regional characteristics and correlation analysis of knee injury in long-distance running in cold regions

SHI Lin; WANG Jin-bao; FENG Jie; YANG Ning; LI Xiao-wan; DUAN Yang; YANG Ben-qiang; ZHANG Li-bo; ZHANG Xin-long

doi:10.16048/j.issn.2095-5561.2024.05.06

Abstract：Objective To investigate the characteristics and correlation analysis of exercise-induced knee joint injury in cold regions.Methods From November 2021 to November 2022,188 patients with chronic knee joint injury during long distance running in cold regions were selected from the General Hospital of Northern Theater Command,the relationship between the injury of unilateral knee joint and contralateral knee joint,the relationship between the injury of knee joint and temperature,age were analyzed.Results The magnetic resonance imaging(MRI)diagnosis score of unilateral knee injury was(2.65±1.47)and that of contralateral knee magnetic resonance imagin was(2.46±1.37),there was a positive correlation between unilateral knee injury and contralateral knee injury(r=0.628,P<0.05).The incidence of unilateral meniscus medialis(MM)injury was 55.3%(104/188),meniscus lateralis(LM)injury was 43.1%(81/188),anterior cruciate ligament(ACL)injury was 39.4%(74/188),posterior cruciate ligament(PCL)injury was 3.7%(7/188);Follow-up period of 1 year,the incidences of contralateral MM,LM,ACL and PCL were 52.1%(98/188),41.5%(78/188),44.7%(84/188)and 3.2%(6/188)respectively.There was a positive correlation between the first unilateral knee injury and the contralateral knee injury(r=0.69,r=0.39,P<0.05).Comparison of LM injury in patients with different temperatures,the difference was statistically significant(P<0.05).There was significant difference in MM injury among patients of different ages,the difference was statistically significant(P<0.05).Conclusion The contralateral knee is easy to be injured after unilateral knee injury.ACL and MM are easy to be injured,MM is related to age,and MM and ACL are related to temperature.