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Distal locking
The use of two cross screws during distal locking fixation can increase the radiation dose to the surgeon. Furthermore, externally mounted guides can be prone to deformation of the nail. In addition, bending and rotational forces may change the position of the distal holes during surgery. Novel distal locking screw designs reduce radiation dose and operating time. Besides, using one distal locking screw reduces the duration of the surgery. Here are the advantages of distal locking.
The distal locking screws are positioned percutaneously with the help of a guide. The surgeon then inclines the skin, fascia, muscle, and bone cortex and places the drill. During this procedure, the surgeon has continuous visual feedback of the position of the screw. To perform distal locking without interference of the femoral nerve, the surgical team must collate the two coloured targets on the monitor to achieve the desired outcome.
The distal locking screw is a vital piece of implant, and it is very important to get it placed correctly. The distal locking screws must be placed into a nail with the correct size. If the screw is too small, it may weaken the nail and re-appoint the implant. Moreover, the procedure requires little radiation exposure. The surgeon should be very careful during the distal locking procedure. Once the implant is in place, it cannot be removed without removing the nail.
The distal locking process is more complex than free hand nail removal. There are three main types of distal nail locking: static, dynamic, and repositioning. The first one is the most common, but the second is the most complicated. These three types can be used to remove the thigh nail. The difference between dynamic and static distal locking is very minimal, but the former is more time-consuming. The dynamic method uses image intensifiers to visualize the positioning of the screw.
Both techniques are time-consuming and involve significant radiation. Conventional free hand nail removal uses C-armed fluoroscopy to locate the distal hole. The distal locking procedure is a long and complicated procedure. The risk of complications is lower, but it is time-consuming. The two methods differ in the amount of radiation. Nonetheless, it is still preferable to static locking for a number of reasons. The most obvious benefit is the faster recovery.
The use of laser guiding navigation device has several advantages. In terms of accuracy, the IM locking device reduces the radiation and operating time. This method is easy to learn and carries the risk of internal nail migration. It also improves the accuracy. The disadvantages of the distal locking screw include the radiation exposure and operative time. In some cases, the patient will need to undergo more surgery than he or she would otherwise.