Outcomes of Minimally Invasive Plate Osteosynthesis for Humeral Shaft Fractures

Abstract

Background: Minimally invasive plate osteosynthesis (MIPO) has emerged as a
advantageous surgical technique for humeral shaft fractures, aiming to preserve soft
tissue integrity and reduce complications associated with conventional open plating
or intramedullary nailing.
Methods: A study was conducted on 15 patients with diaphyseal humeral fractures
treated with anterior MIPO at a tertiary care centre between December 2023 and
November 2024. Patients were evaluated for radiological union, shoulder and elbow
function (Constant-Murley Score and Mayo Elbow Performance Score MEPS),
surgical time, and complications. The average follow-up period was 6 months.
Results: The mean age of patients was 42.7 years. All fractures united, with an
average union time of 11.9 weeks. Mean Constant-Murley Score for the affected
shoulder was 87, while the mean MEPS for the elbow was 97.33. Complications
includes one delayed union and two cases of radial nerve palsy, one of which
recovered completely. No infections were reported. The mean surgical time was 69
minutes, and average blood loss was 109 ml.
Conclusion: Anterior MIPO for humeral shaft fractures provides excellent functional
and radiological outcomes, with low complication rates, minimal soft tissue
disruption, and a cosmetically favorable approach. This technique is effective,
particularly in appropriately selected patients, and facilitates early return to function.