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Minimally invasive plate osteosynthesis (mipo) in humeral shaft fractures – biomechanics – design – clinical results

Authors:C.Sanjeevayya, Praneethreddy K
Int J Biol Med Res. 2016; 7(1): 5389-5393  |  PDF File


ABSTRACT Purpose. To assess outcomes of minimally invasive plate osteosynthesis (MIPO) in 42 humeral shaft fractures. Methods. 28 men and 14 women aged 18 to 68 (mean, 34; median, 29) years underwent closed reduction and MIPO using a LCP for type 12-A (n=26) and type 12-B (n=16) humeral shaft fractures. Eight of the patients were aged ≥ 50 years. Patients were followed up monthly until radiological union in at least 3 of the 4 cortices. Functional assessment was based on the Disabilities of Arm, Shoulder and Hand (DASH) score. Results. The mean follow-up period was 25 (range, 14�35) months. The mean DASH score was 35.1 at month 3 and improved to 8.9 at month 6 and 5.2 at year 1. The mean angulation was 4� in the coronal plane and 7� in the sagittal plane. All fractures united after a mean of 14 weeks. Two patients with transverse fractures had delayed union and received bone marrow injections at 12 or 13 weeks; they achieved union at week 20. One patient developed a radial nerve palsy immediately after surgery and underwent surgical exploration through the anterolateral approach. The plate was re-applied, and the nerve recovered in 48 hours with full power in all the muscle groups. conclusion. MIPO is effective technique for fixation of diaphyseal humeral fractures, and results in faster bone union, better cosmesis, and minimal complications.