J Korean Orthop Assoc.  2002 Jun;37(3):421-427.

Factors Predicting Complications After Multiple Pinning of Femoral Neck Fractures

• Suh KT
• Choi YJ
• Kim DW

Abstract

PURPOSE: To report upon factors predicting complication after multiple pinning of femoral neck fractures, the authors performed a comparative study upon a success group and a failure group and reviewed the literature.
MATERIALS AND METHODS
Among cases of multiple pinning from July 1990 to June 1998, we defined 63 cases as successful that had more than 2 years follow-up and had no complications, and 18 cases as unsuccessful that had complications like avascular necrosis, nonunion and required a secondary operation. We analyzed the two groups from the viewpoints of age, cause of injury, classification of fracture, degree of displacement, degree of osteoporosis, time interval to operation and accuracy of reduction.
RESULTS
Statistically significant factors were the degree of displacement by Garden classification (p=0.007), the degree of displacement and anatomical position by AO classification (p=0.005), the time interval to operation after 7 days (p=0.012) and the postoperative accuracy of reduction (p=0.010). However, age, Singh index and the type of internal fixation device did not show statistical significance.
CONCLUSION
Displaced subcapital fracture, time interval to operation after 7 days and reduction accuracy may be prediction of complications.

Keyword

Femoral neck fracture; Multiple pinning; Complication

MeSH Terms

Classification
Femoral Neck Fractures*
Femur Neck*
Follow-Up Studies
Internal Fixators
Necrosis
Osteoporosis