髌骨是人体中最大的子骨。髌骨能增强股四头肌的力量,有伸直膝关节最后10～15℃的滑车功能,并保持膝关节。膝部外伤时,髌骨受伤机会多,特别是当膝关节半屈曲位股四头肌强烈收缩时,尤为用三点压力折断木棒一样,髌骨即发生骨折;直接暴力,如撞伤、打扑伤等也可致髌骨骨折。髌骨骨折较为觉见,约占全身骨折的2.3％。 笔者连续抽取我院髌骨骨折的X线片共300份,年龄从18～83岁,平均年龄47.2岁,男性161例,女性139例,男女之比1.16:1.左侧髌骨180例,右侧120例,左右之比1.5:1。骨折位于髌骨上1/3处 The patella is the largest bone in the human body. Patella can enhance the strength of the quadriceps, straightening the knees last 10 ~ 15 ℃ tackle function, and keep the knee. Knee injury, the patella more chance of injury, especially when the knee half flexor quadriceps strong contraction, especially with three-point pressure off the stick, the patella fracture; direct violence, such as bruises, flutter Injuries can also cause patellar fractures. More aware of patella fractures, accounting for about 2.3% of systemic fractures. The author continuously extracted from our hospital a total of 300 X-ray films of patellar fractures, aged from 18 to 83 years old, with an average age of 47.2 years, 161 males and 139 females, male to female ratio of 1.16: 1. Left patella 180 cases, right 120 cases, about the ratio of 1.5: 1. The fracture is located on the 1/3 of the patella