COMPARATIVE STUDY
JOURNAL ARTICLE

[Comparison of two surgical methods for aseptic nonunions of femoral shaft orthopaedic surgery]

Iangying Ru, Haibin Cang, Chuanliang Hu, Yuhua Hu
Chinese Journal of Reparative and Reconstructive Surgery 2013, 27 (1): 25-9
23427487

OBJECTIVE: To compare the outcomes between intramedullary nail change and augmentation plating with a retained intramedullary nail for aseptic nonunion of femoral shaft fractures after femoral nailing, and to analyze the cause so as to guide the clinical application.

METHODS: Between June 2001 and June 2011, 28 patients with aseptic nonunion of femoral shaft fractures after femoral nailing were treated with intramedullary nail change (11 patients, group A) and augmentation plating with a retained intramedullary nail (17 patients, group B), and the clinical data were analyzed retrospectively. There was no significant difference in age, gender, smoking, location of fracture, Association for the Study of Internal Fixation (AG/ASIF) classification, type of injury, associated injury, type of nonunion, and time of nonunion between 2 groups (P > 0.05). The patients were followed up by imaging and the clinical function at regular intervals to observe the callus growth and the recovery condition of the affected limb function, and clinical curative effectiveness was evaluated by Tohner-Wrnch standard.

RESULTS: The operation time, intraoperative bleeding volume, and intraoperative erythrocyte-transported volume in group A were significantly higher than those in group B (P < 0.05). There was no significant difference in postoperative drainage volume and hospitalization days between 2 groups (P > 0.05). All the incisions healed by first intention, and no nerve and blood vessel injury occurred. All patients were followed up 18.6 months on average (range, 12-36 months). All cases obtained bone union, and time of clinical and radiological bone healing in group B was significantly shorter than those in group A (P < 0.05). During follow-up, no following complication occurred: deep incision infection, injuries of blood vessels and nerves, loosening and breakage of internal fixation, loss of reduction, angulated and rotational malunion. According to Tohner-Wrnch standard at last follow-up, the results were excellent in 6 cases, good in 3 cases, and poor in 2 cases, with an excellent and good rate of 81.8% in group A; the results were excellent in 12 cases, good in 5 cases, with an excellent and good rate of 100% in group B; and difference was significant between 2 groups (Z = -2.623, P = 0.021).

CONCLUSION: Augmentation plating with a retained intramedullary nail is an ideal treatment for aseptic nonunion of femoral shaft fractures after femoral nailing and can achieve satisfactory clinical outcomes because it has simpler operation, shorter operation time, less blood loss, and less trauma than intramedullary nail change.

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