Spinal lumbar surgery with rods and screws is a medical procedure designed to address various spinal conditions, providing relief and stability to patients experiencing discomfort or pain. This innovative surgical approach involves the use of rods and screws to support and strengthen the spine, facilitating the healing process and improving overall spinal function. In this blog, we will explore the intricacies of spinal lumbar surgery with rods and screws, shedding light on its purpose, the conditions it addresses, the procedure itself, and the recovery process.

Understanding the Need for Spinal Lumbar Surgery

Spinal lumbar surgery is often recommended when conservative treatments, such as physical therapy, medications, or lifestyle modifications, fail to provide sufficient relief for spinal conditions. Common conditions that may necessitate this surgery include herniated discs, degenerative disc disease, spinal stenosis, and spondylolisthesis. The decision to undergo spinal lumbar surgery is typically made after careful consideration of the patient’s symptoms, medical history, and the severity of the spinal condition.

The Role of Rods and Screws in Spinal Lumbar Surgery

Rods and screws play a crucial role in spinal lumbar surgery by providing stability and support to the spine. The surgeon strategically places rods along the affected area of the spine and secures them with screws into the vertebrae. This instrumentation helps to realign the spine, reduce instability, and promote the fusion of spinal bones. The use of rods and screws is a testament to the advancements in spinal surgery, allowing for more precise and effective treatment of complex spinal conditions.

Rods and Screws Implants by Zealmax Ortho

Rods and screws are essential components of spinal implants used in various spinal surgeries to provide stability, correct deformities, and facilitate the fusion of spinal segments. These implants play a crucial role in supporting the spine during the healing process. Let’s delve into the details of rod and screw implants and their significance in spinal procedures.


1. Monoaxial Pedicle Screw 

Pedicle screw implants use a rod screw construct that can be made with monoaxial screws with an immobile pedicle screw head. Pedicle screws in the Monoaxial Screw Fixation System are equipped with threaded bodies that provide excellent purchase and stability within the vertebral pedicle. The threads ensure a secure fit, reducing the risk of implant migration or loosening over time.


  • The monoaxial pedicle screw stabilizes the vertebrae.
  • Used in different procedures to provide fixation.
  • Immediate stability, rigid immobilization, and short fixation.
  • Available in Titanium material.
  • Available diameters 4.5, 5.5, and 6.5(in mm).
  • Available length 25, 30, 35, 40, 45 and 55 (in mm).

2. Polyaxial Pedicle Screw 

Available in various lengths and widths, Polyaxial Pedicle Screw has a spherical head that is enclosed in the housing, which allows the screw a range of motion along several different axes relative to the housing. Its ball joint makes it easier and more flexible for surgeons to place the screw at the right place typically into the pedicle of the vertebra, in the proper manner. When applied, it helps maintain spinal stability and avoid further nerve damage especially while treating the thoracolumbar fracture.

Coated with Hydroxyapatite (HA) – a biocompatible surface to titanium medical implants that acts similar to natural hard tissues and improves bioactivity and osteoconductivity, our Polyaxial Pedicle Screw in Polyaxial Screw Fixation System is a savior for patients facing spinal trauma. It assists in spinal surgery by connecting vertebrae to rods, particularly in spinal fusion procedures

3. Pedicle Reduction Polyaxial Screw HA Coated 

Pedicle Reduction Polyaxial Screw HA Coated” features a more flexible and versatile design in spinal surgery. These screws utilize a polyaxial system, allowing movement in multiple planes, which enhances their adaptability during surgery. The polyaxial design is particularly advantageous for complex spinal procedures that require adjustments in various angles and positions, ultimately providing surgeons with greater surgical precision and versatility.


  • Polyaxial design for multi-plane adjustability.
  • Hydroxyapatite coating enhances bio-activity on metallic surfaces.
  • HA-coated screws promote faster bone growth and fusion.
  • Used in different procedures to provide fixation.
  • Ideal for cases with compromised bone quality
  • Available in Titanium material.
  • Available diameter 4.5, 5.5, 6.5, and 7.5 (in mm).
  • Available length 25, 30, 35, 40, 45, 55, 60, 65, 70, 75, and 80 (in mm).

4. Reduction Polyaxial Fenestrated Extended Screw 

A Reduction Polyaxial Fenestrated Extended Screw is a sophisticated pedicle screw employed in spine surgery to achieve stabilization, deformity correction, and fusion in a variety of spinal conditions. It incorporates a polyaxial design, fenestrations along the screw shaft, and an extended length for enhanced versatility and fixation.


  • Polyaxial design for precise screw alignment with spinal anatomy.
  • Fenestrations along the screw shaft for bone ingrowth and stability.
  • Extended length for added purchase in osteoporotic or compromised bone.
  • Made from biocompatible titanium for strength.
  • Engineered to bear substantial loads and reduce stress on adjacent segments. Available diameter  5.5 and 6.5(in mm).
  • Available length 25, 30, 35, 40, 45 and 55 (in mm).


5.5mm Rod for Pedicle Screw

The 5.5mm rod for a pedicle screw is a component used in spinal instrumentation for stabilization and fusion procedures. It is a rod with a diameter of 5.5mm, designed to connect polyaxial pedicle screws. The diameter of the rod is an important consideration as it influences the strength and stability of the spinal construct.

5.5mm Chrome Rod for Pedicle Screw 

Similar to the first implant, the 5.5mm chrome rod for a pedicle screw is a spinal rod with a diameter of 5.5mm. The use of chrome suggests that the rod is likely made from a chromium alloy, providing durability and resistance to corrosion. This type of rod is commonly used in spinal surgeries to enhance stability and promote fusion.

3.5mm/5.5mm Tapered Rod

The 3.5mm/5.5mm tapered rod is a specialized implant that combines two different diameters along its length. This tapering design allows for flexibility and adaptability in spinal constructs. The smaller diameter end (3.5mm) may be used in areas where a finer degree of movement is required, while the larger diameter end (5.5mm) provides additional support where more strength is needed.

3.0 Transverse Connecting Road

The 3.0 transverse connecting rod is an implant used for transverse connections in spinal surgeries. It typically has a diameter of 3.0mm, and its primary function is to connect and stabilize adjacent vertebrae, often in conjunction with other spinal instrumentation. Transverse connecting rods contribute to the overall stability of the spinal construct.


As a trailblazer in spine implant technology, Zealmax Ortho continues to play a crucial role in advancing the capabilities of spinal surgery. The company’s dedication to research, development, and collaboration with medical professionals underscores its commitment to improving the lives of individuals suffering from spinal conditions. With Zealmax Ortho’s implants, surgeons have access to tools that empower them to achieve optimal results, enhancing the overall success of spinal procedures and the well-being of patients.

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