O2323 RECONSTRUCTION OF 4-PART “VALGUS IMPACTED” FRACTURES OF THE HUMERAL HEAD

Aims: The evaluation of outcome of 4-part valgus impacted fractures of the proximal humerus after reconstruction with stable transosseous suturing þxation and early postoperative passive motion. Methods: 51 patients, 33 women and 18 men (average age 49,5 years) with displaced 4-part Ovalgus impactedO fractures of the proximal humerus, were treated operatively in the last 10 years (1991–2001). Stable þxation of the tuberosities to each other, to the metaphysis and to the articular part of the humeral head, was achieved with non-absorbable (Ethibon No 5) sutures, avoiding any use of hard material. Early passive motion with pendulum exercises was applied to all patients at the 2nd postoperative day, followed by active assisted exercises after the 4th to 6th postoperative week, and þnal strengthening exercises after the 2nd to 3rd postoperative month. Results: Long term results (mean follow up period 5.6 years), were evaluated according to Constant-Murley Scoring System. 42 patients (82.3%) had very good result (Constant score > 80) without pain and satisfactory motion (160u forward elevation, 50u to 80u external rotation and internal rotation up to T12). The incidence of avascular necrosis was 3,9%. Complications developed in 6 patients: 1 malunion of the great tuberosity, 3 heterotopic ossiþcations and 2 nonunions revised to hemi-arthroplasty and plate osteo-synthesis plus bone grafting. Conclusions: Advantages of this minimally invasive technique are: shorter operative time, no use of hardware, less soft tissue damage, low incidence of avascular necrosis, stable osteosynthesis with tension band effect, and adequate rotator cuff repair, allowing for early joint motion.