Minimally invasive plate osteosynthesis with PHILOS plate for proximal humerus fractures

摘要

Objectives The aim of the present study was to evaluate results, including clinical and radiological outcomes and number of complications, following minimally invasive plate osteosynthesis (MIPO) of proximal humerus fractures, using the PHILOS? proximal humerus internal locking system (Synthes Holding AG, Solothurn, Switzerland). Methods Retrospectively evaluated were 31 patients treated with MIPO (12 male, 19 female; average age: 58.4 years). Four patients had 2-part fractures, 14 patients had 3-part fractures, and 13 patients had 4-part fractures, according to Neer classification. Healing, complications, and head-shaft angle (HSA) were radiographically evaluated. Clinical outcomes were assessed at 1-year follow-up with Constant score. Results Average Constant scores for fractured and normal shoulders were 73.2?±?10.9 and 84.8?±?5.1, respectively. Varus progression, fracture type, and age had no significant effect on functional outcome. Average postoperative and follow-up HSA's were 130.80?±?7.70 and 128.80?±?10.00, respectively. Significant varus progression was observed during follow-up (p?=?0.01). Varus progression was more prominent in patients with postoperative HSA?