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P Pignedoli

Publications and source records attributed to P Pignedoli.

6 recordsLinked to original sources

Retention of the posterior cruciate ligament in total knee arthroplasty.

The importance of the preservation of the posterior cruciate ligament in total knee arthroplasty is analyzed from a biomechanical, clinical, and functional standpoint. Using clinical and radiographic criteria, the authors assess posterior cruciate ligament validity in a selected group of 31 of 45 total knee arthroplasties (PCA prosthesis) reviewed at least 18 months after the operation. Sixty-eight percent of the replaced knees, which were divided into two groups on the basis of preoperative deformity, had a functional posterior cruciate ligament. In view of these results the authors are satisfied with the prosthetic model they adopted, which was designed not only to preserve the posterior cruciate ligament, but also, by virtue of its special shape, to compensate in the event of ligament insufficiency.

Activities of Daily Living↗

Total P.C.A. knee arthroprosthesis.

Between 1983 and 1986 the authors implanted 36 porous-coated P.C.A. total knee prostheses in 34 patients. Complications included two fatal cases of pulmonary embolism and one deep infection which healed within five months following removal of the prosthesis and arthrodesis. The results obtained in 23 patients after an average follow-up of 18 months were excellent in 87% and fair in 13% (according to the Hungerford evaluation system). Radiographic evaluation showed excellent prosthetic positioning in 70% of the cases, the presence of radiolucent lines in areas 5-6-7-8-11-15-19 (according to Hungerford) in 21% of the cases, and zonal bone resorption in areas 1-2-3-4 in 43% of the cases. The authors report their conclusions with reference to complications, the preservation of the posterior cruciate ligament, and problems related to positioning the prosthesis.

Aged↗

The locked Grosse-Kempf intramedullary nail in the treatment of diaphyseal and metaphyseal fractures of the femur and tibia.

The Gross-Kempf locked intramedullary nail widens the indications for the traditional Küntscher nail in the treatment of diaphyseal and metaphyseal fractures of the lower limbs. The study includes 87 patients with a total of 93 closed fractures treated between 1981 and 1987. Osteosynthesis was carried out in 85 closed fractures and in 8 Grade 1 or 2 open fractures. Possible assemblies in relation to the level and type of fracture and the protocol for weightbearing are illustrated, with emphasis on the fact that dynamization of static assemblies is not always essential. The high percentage of positive results (86%) and the relatively small incidence of complications confirm the validity of this method. The only drawback is the fairly high dose of radiation absorbed by the surgeon during the operation.

Adult↗

The locked intramedullary Grosse Kempf nail in the treatment of proximal diaphyseal fractures of the femur.

The authors studied the effectiveness of locked intramedullary nailing (Grosse-Kempf) in the treatment of proximal shaft femoral fractures. They reviewed 24 cases with an average two-year follow-up and which had obtained positive clinical radiographic results in 80% of cases as compared to 88% in a previous revision of femoral shaft fractures. The difference is due to the greater difficulty encountered in intraoperative reduction of fractures from which defects in axial (varus) and rotatory (extra) alignment arise. They discuss indications as regards locking type, weight-bearing, as well as surgical techniques, which may prevent some of the most frequent problems observed.

Adolescent↗