The 3.5 Millimeter Limited Contact Dynamic Compression Plate: A Preliminary Report of Technical Advantages
SourceA preliminary, prospective, multicenter study using the 3.5 mm low contact dynamic compression plate (LCDCP) for traumatic and reconstructive problems in the upper extremity skeleton is presented. Over a 13-month period in three institutions, 26 plates were implanted in 21 patients. Twelve were male and 9 female, with an average age of 26 years. Eleven LCDCP were used for acute fractures. Fifteen plates were used in reconstructions, including nonunions; radial osteotomies; and wrist arthrodeses. Twelve were stainless steel and 14 titanium. Plate lengths ranged from 6 holes to 10 holes. Multi-directional contouring was required in 6 cases. Obliquely placed 3.5 mm design “shaft” lag screws were used in 2 cases. In 4 cases, the plate design permitted compression in 2 opposing directions along the longitudinal axis of the bone. In one case, the newer hole design allowed placement of an oblique lag screw at a 40-degree angle to the plate. All patients were treated with a functional aftercare program. Radiographic and clinical union was achieved within 3 months in each case. There were no immediate or late postoperative problems. Functional limb recovery was noted in each case. One patient had plate removal 6 months post wrist arthrodesis due to extensor tendon inflammation. The plate was securely fixed. Microscopic sections of zones of contact and non-contact clearly demonstrated increased osteoporosis in the zones of plate contact. This experience supports the fact that with the LCDCP internal fixation is secure, plate design allows easier 3-dimensional contouring, and screw placement is facilitated.