다발성 Knowles 핀을 이용한 60세 이하 성인에서의 대퇴골 경부골절의 치료 = Multiple Knowles Pin Fixations of the Femoral Neck Fractures in Adults under 60 Years of Age

다국어 초록 (Multilingual Abstract)

Femoral neck fracture is more common in elderly even by minor trauma because of osteoporosis. In young adults. though the incidence is low, have a poor rognosis because of high incidence of non-union and aseptic necrosis. The treatment method of the femur neck fracture is widely divided into internal fixation and replacement arthroplasty. But there is still contrversies present in the treatment methods.
The object of this study is to observe the relationships between the clinical outcomes and the age, the degree of displacement the type of reduction. the time of.operation and the bone density in the, femoral neck fractures treated with multiple Knowles pin fixation.
The authors analyzed 29 cases of fracures neck fractures in adults under 60 year of age, who were treated with multiple pin fixation and followed up mote than 1 year duration.
The results obtained were as follows;
1. The union of femoral neck fracture occured in 19 cases (65.5%) among the 29 cases and the mean duration of union was 4.8 months.
2. The complications were 8 cases (27.6%) of avascular necrosis. 2 cases (6.9%) of non-union, 2 cases of malunion and 1 case of post-traumatic arthritis.
3. The functional results by Lunceford criteria were satisfactory in 17 cases (58.6%).
4. In the patient group which were no avascu1ar necrosis and non-union showed 89.5% of satisfactory functional end result.
5. There was a reiationship between the complications such as avascular necrosis and non-union. and age of the patient, bone density, degree of initial displacement and type of reduction. But the duration between the injury and operation did not influence the complication rate.
According to the above results, we concluded that multiple Knowles pin fixation in femoral neck fractuse is simple and safe method and one of salvaging method of femoral head in adults under 60 years of age.