Volume 38, Issue 1 (1-2024)                   Med J Islam Repub Iran 2024 | Back to browse issues page

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Tayyebi H, Noorigaravand S, Baheaddini M R, Mohammadyahya E, Parvandi A, Shirvani S et al . The Impact of Delayed Osteosynthesis of Bone Healing in Patients with Extra-articular Distal Femoral Fracture. Med J Islam Repub Iran 2024; 38 (1) :164-167
URL: http://mjiri.iums.ac.ir/article-1-8922-en.html
Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of ‎Medicine, Iran University of Medical Sciences, Tehran, Iran , Yeganeh.a@iums.ac.ir
Abstract:   (297 Views)
Background: In extra-articular distal femoral fractures (EDFFs), nonunion is a serious complication that occurs rarely. In this study, we examined how longer preservation of initial fracture hematoma by delaying the osteosynthesis (OS) affects the fracture union.
   Methods: In a retrospective cohort study, 98 EDFF patients were included. The OS was done within 2 days of injury in 50 patients (early OS group) and after 2 days of injury in 48 patients (late OS group). Time to callus formation and fracture union, bleeding amount, surgical duration, pain, knee range of motion, knee function, and postoperative complications, including the nonunion, knee deformity, infection, and revision, were compared between the 2 groups. Statistical analyses were done with SPSS. A comparison of the mean between the 2 groups was made with an independent t test or its nonparametric counterpart. A comparison of categorical variables between the 2 groups was made using a chi-square or the Fisher's exact test. P ˂ 0.05 was considered statistically significant.
   Results: The mean time to callus formation was 47.1 ± 17.3 days in the early OS group and 46.9 ‎‎± 19.7 in the late OS group (P = 0.950). The mean time to fracture union was ‎‎114.9 ± 21 in the early OS group and 117.4 ± 28.8 days in the late OS group (P = 0.630). The mean operation time and bleeding amount between the 2 groups did not differ significantly (P = 0.230 and P = 0.340, respectively). The knee range of motion, pain, and function were not notably different (P = 0.620, P = 0.790, and P = 0.770, respectively). Nonunion occurred in 3 patients of early OS and 2 patients of the late OS group. Other complications were also comparable in the 2 study groups.
   Conclusion: Delayed OA in EDFF patients has no significant effect on bone healing and fracture union. Future standard studies are required to confirm these results.
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