What is a DHS procedure?
What is a DHS procedure?
The Dynamic Hip Screw (DHS) or Sliding Hip Screw can be used as a fixation for neck of femur fractures. This would usually be considered for fractures that occur outside the hip capsule (extracapsular), often stable intertrochaneric fractures.
How long is DHS surgery?
In DHS with a two-hole side-plate the mean surgical time was 30 minutes, and for a four-hole side-plate it was 36 minutes.
How does the dynamic hip screw work?
The DHS is based on tension band principle and allows the screw to slide within the barrel to enable compression of the fracture when the patient begins to bear weight. This principle only works in the presence of intact medial wall and so cannot be successful in a reverse oblique fracture of the proximal femur.
How long does a hip fracture take to heal without surgery?
Depending on health and injury pattern this bone can take 3-4 months to heal without surgery. Physical therapy for hip and knee range of motion is started around 6 weeks once bone has healed enough to prevent displacement with motion.
How long does it take to recover from a dynamic hip screw?
This is a picture of a DYNAMIC HIP SCREW (DHS), it is made of metal and used to fix the break in the hip bone. After breaking your hip bone it will take 6-12 weeks to heal fully, but the DHS will make your hip stable enough to allow you to move your leg and become mobile straight away.
How are the DHS instruments used in hip surgery?
The DHS instruments provide direct measurements throughout the DHS procedure, allowing proper reaming, tapping and lag screw insertion depth. The built-in stop and locking nut on the DHS triple reamer prevent over-reaming. Dynamic Hip Screw (DHS)
When to remove a dynamic hip screw ( DHS )?
Pseudarthrosis in about 4 % and femoral head necrosis as a late complication in about 2 % of all cases. However, both complications are largely independent of the implant system. Limitation of hip movements (periarticular ossification). Implant removal after one to one and a half years at the earliest (usually not necessary in elderly patients).
What are the side effects of DHS surgery?
The following complications can occur with the DHS technique: Wound infection (incidence between 1.8 % and 4 % with deep and superficial infections). • • • • • • • • • • • • • Haematoma and seroma (incidence about 4 %) Nerve injury (injuries of the femoral nerve and sciatic nerve are extremely rare).
How is a DHS wire inserted into the femoral head?
Using the corresponding DHS angled guide (No. 10.152.01) with T handle, the wire is hammered lightly into the femoral head. With unstable fractures, several Kirschner wires are inserted in the femoral head from lateral to medial for temporary stabilisation of the reduced (and valgusised) fragments.
