1. Amstutz, HC., Sew Hoy, AL. and Clarke, IC.UCLA anatomic total shoulder arthroplasty.;Clin Orthop Relat Res,1981
2. Becker, R., Pap, G., Machner, A. and Neumann, WH. Strength and motion after hemiarthroplasty in displaced four-fragment fracture of the proximal humerus: 27 patients followed for 1-6 years.;Acta Orthop Scand,2002
3. Christoforakis, JJ., Kontakis, GM., Katonis, PG., Stergiopoulos, K. and Hadjipavlou, AG. Shoulder hemiarthroplasty in the management of humeral head fractures.;Acta Orthop Belg,2004
4. Compito, CA., Self, EB. and Bigliani, LU. Arthroplasty and acute shoulder trauma: reasons for success and failure.;Clin Orthop Relat Res,1994
5. Constant, CR. and Murley, A. A clinical method of functional assessment of the shoulder.;Clin Orthop Relat Res,1987