Why Dynamic Hip Screws Matter
Hip fractures are more common than many people realize, especially in older adults. When they happen, the right treatment can make the difference between full recovery and long-term disability. That’s where the Dynamic Hip Screw comes in—a trusted, widely used device that helps stabilize certain hip fractures and encourages quick healing.
Who Commonly Needs a Dynamic Hip Screw
DHS is often used for adults—typically older adults—who suffer hip fractures from falls, accidents, or weakened bones caused by osteoporosis.
Understanding the Dynamic Hip Screw (DHS)
Definition
A Dynamic Hip Screw is a surgical implant used to stabilize fractures of the upper part of the femur (thigh bone), especially near the hip joint.
Main Purpose of the Device
Its job is simple: hold the broken bone in place while allowing controlled movement so the fracture can heal naturally.
Anatomy of a Dynamic Hip Screw
Lag Screw
A long screw inserted into the neck and head of the femur to anchor the device.
Side Plate
A metal plate attached to the outside of the thigh bone with multiple smaller screws.
Barrel
A tube attached to the plate where the lag screw slides in and out.
How All Parts Work Together
The lag screw engages the bone, the barrel guides its motion, and the plate ensures stability—creating a strong, flexible system.
When Is a Dynamic Hip Screw Used?
Types of Hip Fractures Treated
DHS is primarily used for stable intertrochanteric fractures, which occur between the neck and the shaft of the femur.
Age and Patient Conditions
It’s especially effective in older adults with good bone quality or manageable osteoporosis.
Situations Where DHS Is Not Recommended
Severely unstable fractures or fractures that extend vertically may require different implants.
How a Dynamic Hip Screw Works
Sliding Mechanism
The lag screw slides within the barrel. This movement allows the bone to compress naturally as the patient begins to bear weight.
Compression Across the Fracture
Compression stimulates faster healing—like pressing puzzle pieces together so they fit snugly.
Promoting Bone Healing
This design allows the bone to heal under natural force without excessive stress or movement.
Benefits of a Dynamic Hip Screw
Stability
DHS offers strong stabilization, allowing patients to move sooner after surgery.
Natural Movement Preservation
The dynamic sliding mechanism mimics the hip’s biomechanics.
Reduced Complications
Because it encourages controlled movement, complications like non-union are less common.
The Surgery Process
Pre-Operative Preparation
Patients undergo X-rays, blood tests, and anesthesia assessment before surgery.
Step-by-Step Surgical Procedure
- A small incision is made on the side of the hip.
- The surgeon positions the lag screw into the femoral head.
- The side plate is aligned and attached to the femur.
- All components are tightened and secured.
- X-rays confirm proper alignment.
Duration of the Surgery
Most DHS surgeries take 45 minutes to 1.5 hours.
Recovery After DHS Surgery
Hospital Stay
Patients typically stay in the hospital for 3–5 days after surgery.
Mobility Timeline
Early walking—sometimes within 24–48 hours—is encouraged with assistance.
Physiotherapy Requirements
Exercises focus on regaining hip strength and preventing stiffness.
Possible Risks and Complications
Infection
Any surgical procedure carries a risk of infection.
Implant Failure
Rare, but can occur if the bone is too weak or the fracture is unstable.
Non-Union or Delayed Healing
Healing may take longer for patients with poor bone health.
Caring for a Dynamic Hip Screw Post-Surgery
Wound Care
Keep the incision area clean and dry as instructed.
Weight-Bearing Guidelines
Doctors may allow partial or full weight-bearing depending on fracture stability.
Follow-Up Appointments
Regular X-rays help monitor bone healing.
Alternatives to a Dynamic Hip Screw
Intramedullary Nails
A rod placed inside the femur—often used for unstable fractures.
Total Hip Replacement
Recommended when the fracture also damages the joint severely.
External Fixation
Used in emergencies or when internal surgery isn’t safe.
Cost and Availability
Factors Affecting Price
Costs depend on the hospital, materials, region, and insurance coverage.
Insurance Coverage
Most health insurance plans cover DHS surgery for medically necessary hip fractures.
Tips for Patients and Caregivers
How to Support Recovery
Motivation, patience, safe home setup, and adherence to exercises are key.
Daily Living Adjustments
Install grab bars, avoid slippery floors, and use mobility aids if needed.
Final Verdict
The Dynamic Hip Screw is a reliable, effective, and widely used implant for treating certain types of hip fractures. Its sliding mechanism, strong stability, and proven healing support make it a top choice for both surgeons and patients. If applied in the right situation, it promotes fast recovery and long-term mobility—making life after a hip fracture far more manageable.
FAQs
- What exactly does a Dynamic Hip Screw do?
It stabilizes a hip fracture while allowing controlled movement to support healing.
- How long does a DHS last?
It can remain in the body permanently unless complications arise.
- Is DHS surgery painful?
Pain is managed with medication, and discomfort usually decreases within days.
- Can you walk after DHS surgery?
Yes—most patients begin assisted walking within 1–2 days.
- Is a dynamic hip screw better than a nail?
It depends on the fracture type; DHS is best for stable fractures, while nails suit unstable ones.