Comparison of Functional and Clinical Outcomes Following Intramedullary Nailing Versus Plate Fixation for Humeral Shaft Fractures: A Prospective Study
IMN versus plating for humeral shaft fractures
Abstract
Background: The optimal fixation method for humeral shaft fractures remains debated. This study compared functional and clinical outcomes after intramedullary nailing (IMN) and open reduction and internal fixation (ORIF) with plate fixation.
Methods: In this prospective, observational, comparative cohort study, 85 adults with Arbeitsgemeinschaft für Osteosynthesefragen/Orthopedic Trauma Association (AO/OTA) type 12-B or 12-C humeral shaft fractures were enrolled at a tertiary orthopedic trauma center in Tehran, Iran, between April 2020 and April 2024. Patients underwent IMN (n = 43) or plate ORIF (n = 42) according to the treating surgeon’s judgment. The primary outcome was the 12-month Quick Disabilities of the Arm, Shoulder, and Hand (QuickDASH) score; secondary outcomes included shoulder and elbow function, pain, union, hospital stay, return to work, and complications.
Results: Mean age was higher in the IMN group compared to the ORIF group (41.53 ± 14.12 vs. 35.83 ± 11.82 years; P = 0.047). The duration of hospital stay was shorter after IMN in the unadjusted comparison (2.07 ± 0.34 vs. 2.26 ± 0.59 days; P = 0.043). Nonunion occurred in 2 patients in each group (4.7% vs. 4.8%, P > 0.999), and no statistically significant difference was observed in the unadjusted QuickDASH scores (10.93 ± 11.33 vs. 16.48 ± 15.23; P = 0.060). In an exploratory model adjusted only for age and sex, IMN was associated with a modestly lower QuickDASH score [B = −6.22, 95% confidence interval (CI): −12.20 to −0.25; P = 0.041]; this association remains susceptible to residual confounding. Both techniques achieved high union rates and favorable 12-month outcomes. The unadjusted QuickDASH comparison was not significant, and the modest association in a partially adjusted exploratory model should not be interpreted as clinical superiority of IMN. Treatment selection should remain individualized.
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| Files | ||
| Issue | Vol 12 No 4 (2026) | |
| Section | Research Articles | |
| Keywords | ||
| Humeral shaft fracture Intramedullary Nailing Bone Plates Fracture Fixation Recovery of Function Disability Evaluation | ||
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