cancellous screw

cancellous screw

Orthopedics A screw with relatively coarser thread and often with a smooth, unthreaded portion, which allows it to act as a lag screw and to anchor in soft medullary bone. See Screw.
Mentioned in ?
References in periodicals archive ?
The controversial factors in cancellous screw fixation are: method of reduction-open or closed; number of screws used --two, three or four; the configuration of screws -parallel or non-parallel, vertical or triangular fashion; the positioning of screws in the head-centre of head or in the periphery and the addition of bone grafting-free fibula or quadratus femoris muscle pedicle grafting.
The SEH is designed according to the physiologic micro-movement feature of the syndesmosis, including resilient serpentine linker, fork-like pickpocket across the fibula end, and single cancellous screw hole of the distal tibial end, which can not only effectively fix the distal injured tibiofibular syndesmosis, but also retain the micro-movable feature of it.
1) Surgeries included coracoclavicular fixation with a cancellous screw or transfixation of the AC joint with Steinmann pins or Kirschner wires.
At present the cannulated screw the cancellous screw and cortical screw could all be chosen for the fixation of sustentaculum tali.
The presence of the physis in children mandates physis-sparing surgery, and adequate fixation can be achieved by partially threaded cancellous screw fixation in the epiphysis.
Two-part greater tuberosity fractures were treated by percutaneous reduction and cannulated cancellous screw fixation if the fragment is more than 2 cm in size.
Then, a cannulated cancellous screw, of suitable length, with washer was inserted onto the second guide pin to act as a DRS.
2 mm is drilled centrally through clavicle into the coracoids and a 4 mm cancellous screw is fixed.
In this technique we have utilized the principle of tension band wiring over a cannulated cancellous screw by transosseous route with full restoration of intra articular anatomy.
5 mm cancellous screw and the smooth pin of the same diameter, suggesting that the initial region could not be explained by the settling of the screw thread into the foam.
The insertion of cannulated cancellous screw after ender nail is introduced resulted in controlled collapse of the fracture in which the cannulated cancellous screw acts as guide and directs the collapse of fracture in its direction.
Tenders are invited for Set Of Hybrid Total Hip Prosthesis: Imported, Usfda Approved Make Only,Quotations By Dealer Eligible Only If Authorised By Oem, Set Comprises Of Acetabulum Metal Back Shell, Cross Linked Poly Liner, Cobalt Chrome Head And Stem, Acetabulum Should Bear Ha Coating Or Coating Of Appropriate Microstructure Proven For Prompt Osseointegration, Metal Back Having Provision For Cancellous Screw Fixation By At Least Three Screws, Stem - Collarless With At Least Two Offset Options, At Least Double Taper Adapted For Cementing, Head - At Least Four Neck Size Modularity With At Least One Negative Option, Detailed Specifications Attached For Download