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Biomedical subjects

Clifford B Jones

Publications and source records attributed to Clifford B Jones.

6 recordsLinked to original sources

Locked plates for proximal tibial fractures.

Proximal tibial fractures are complex and serious injuries that can result from direct high-energy trauma or indirect low-energy trauma. Many injuries involve the articular surface, and because of their proximity to the knee joint, deforming forces can create instability and malalignment. Furthermore, accessing the articular surface and fracture site can further compromise already precarious soft-tissue injuries. Treatment of these injuries is challenging, and treatment options can be controversial.

Accidents, Traffic↗

Management of distal humerus fractures with minifragment fixation.

Minifragment implants provide several advantages for the stabilization of distal humerus fractures. Compared with small fragment implants, minifragment implants may provide enhanced fracture fixation because a greater number of screws can be placed into the distal fragments. In addition, minifragment plates are easier to contour and less prominent. We describe the surgical technique of minifragment fixation.

Adult↗

Treatment of proximal humeral fractures with Polarus nail fixation.

A chart review of 20 patients who sustained acute proximal humeral fractures and who were treated by surgical stabilization with locked antegrade humeral intramedullary nails (Polarus nails) was undertaken. The clinical outcome measurements were fracture healing, infection, and neurologic injury. Radiologic outcome measurements included fracture alignment, loosening, fixation and hardware failure, and malunion and nonunion. Of 20 fractures, 11 healed without complications. The mean immediate postoperative and final radiographic valgus neck/shaft angulation measured 131 degrees. Of the 20 implants, 3 had proximal fixation screw loosening. Of the 20 implants, 2 underwent revision surgery for proximal fixation failure. With certain fracture types, the Polarus intramedullary humeral nail can be an effective implant. In fracture cases involving an unstable or comminuted lateral metaphyseal fracture, if the starting point extends into the greater tuberosity, fixation failure or fracture displacement may result.

Adolescent↗

Nonunion treatment: iliac crest bone graft techniques.

In the management of nonunions, detailed surgical treatment plans will vary depending on the underlying etiology of the specific case. Iliac crest autogenous bone grafting, although associated with donor site complications, continues to be a necessary part of the treatment of many nonunions. This article summarizes the classification of nonunions and the use of iliac crest autogenous bone grafting, the standard against which any new technique must be measured.

Animals↗