Complications in 16 out of 352 Cases Following Femoral Interlocked Nail Implantation Nail Breakage as a Main Factor
2008
BACKGROUND: Interlocking nail implantation exhibits great stability and preventory effect on fracture shortening or rotation.
OBJECTIVE: To evaluate the reasons and countermeasures for the complication after interlocking nail implantation in treating femoral fracture.
DESIGN, TIME AND SETTING: The case analysis was performed at Department of Orthopedics, Changhai Hospital of Second Military Medical University of Chinese PLA from April 1987 to April 2008.
PARTICIPANTS: 352 patients underwent femoral interlocking nail implantation, including 289 male and 63 female with an average age of 35.9 years (range 18-84 years).
METHODS: 127 patients were treated with close interlocking nail implantation, of which 30 cases were subjected to minimal incision to assist nail insertion; 24 were treated with dynamic interlocking nail implantation; 321 with static interlocking nail implantation, and 38 with interlocking nail implantation for femoral reconstruction.
MIAN OUTCOME MEASURES: Complications post- implantation; limb joint function recovery during long-term follow-up.
RESULTS: 331 cases were followed-up for over 60 months, and the longest follow-up lasted for 252 months. Complications were found in 16 cases, including deformity union in 2, femoral neck fracture in 1, exit of the nail in 2, infection in 2, breakage in 8 (nonunion in 3), and perineal nerve injury in 1. Except 2 with deformity union and recovered by secondary surgery, all patients developed bone union. During the followed-up, no pain or knocked pain was found with normal pseudoarthrosis activities and functional activities. The excellent function recovery in joints and limbs was 91 .2%.
CONCLUSION: Nail breakage is the main complication after interlocking nail implantation. Therefore, we should select longer and thicker interlocking nail as the first choice. In addition, the interlocked screws should be distal to fracture site. For the patients with severe trauma, the interlocking nail implantation in early stage of fracture would not increase complications.
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