Incidence of intraoperative femoral fracture. Straight-stemmed versus anatomic cementless total hip arthroplasty.

The authors report the incidence of intraoperative femoral fractures (16 cases) occurring during the course of 395 cementless total hip arthroplasties performed at the Rizzoli Orthopaedic Institute between November, 1980 and June, 1991. The straight stem (Lord prosthesis) caused an intraoperative fracture in 18% of the cases, whereas the anatomic stem (An.C.

The role of surgical therapy in patients with nonmetastatic Ewing's sarcoma of the limbs.

Of 131 patients with primary Ewing's sarcoma (ES) with extremity locations, treated between April 1972 and May 1987, 13 had amputation; 56 had a local resection with 31 (55%) requiring radiation therapy (RT) as an adjuvant to local therapy. Sixty-two of 131 patients (47%) had RT only. Local recurrences were reported in 5% of patients treated with surgery alone, 1% of the group treated with surgery and radiation therapy, 24% of patients treated with radiation therapy alone (46% for cesium-radiation therapy, and 12% with cobalt-radiation therapy).

Radiographic evaluation of HDPE cemented and cementless Lord and An.C.A. screwed acetabular models.

A total of 187 alumina screwed porous-ceramic coated sockets (An.C.A.

Radiographic and therapeutic aspects of neurogenic arthropathy.

The authors describe the typical radiographic aspects of neurogenic arthropathy based on an examination of 127 cases observed at the Rizzoli Orthopaedic Institute. Surgical indications for the various joints affected are discussed, and the results obtained after treatment are reported.

An evaluation of the "quoad vitam" prognosis in the elderly patient with medial fracture of the femoral neck.

The authors analyzed 425 consecutive cases of medial fracture of the femoral neck with the purpose of establishing a simple and practical system, and one which is easy to use, in order to evaluate this type of lesion and to compare different series of cases. Based on these criteria the death rate occurring intra-hospital and 6 months after trauma, the influence of the age factor, the type of anesthesia used and the type of treatment carried out, were evaluated. The results were as follows: The classification devised by the American Society of Anesthesiology continues to be an effective system for the evaluation of vital risk.