Bone Cement Gun Specification and Uses

Bone Cement Gun

When it comes to joint replacements and bone fixation treatments, precision and stability are crucial in the field of orthopaedic surgery. The bone cement gun, sometimes referred to as a cement injector or cement delivery system, is an essential instrument that helps surgeons accomplish these objectives.

A bone cement gun is a specialised medical instrument that is used to administer bone cement during orthopaedic procedures such as joint replacement surgeries. It is intended to accurately inject a biocompatible substance known as polymethylmethacrylate (PMMA), also known as bone cement, into the bone cavity or surrounding the implant site. The bone cement functions as a filler, giving the implant stability and forming a strong link with the patient’s bone.

Bone Cement Gun Function

A bone cement cannon is made up of three parts: a handle or grip, a trigger mechanism, and a delivery tube or nozzle. The cement is loaded into the gun’s reservoir, and when the trigger is pulled, the cement is precisely and precisely delivered through the nozzle to the designated region. This technique gives surgeons exquisite control over the cement application, guaranteeing excellent coverage and adherence to the bone surface.

The Advantages of Bone Cement Guns

Precise Delivery: The bone cement gun enables surgeons to precisely deliver the cement, guaranteeing correct distribution and filling of the bone cavity or implant site. This precision contributes to the implant’s increased stability and long-term success.

Cement Voids Risk is Reduced: The controlled delivery system reduces the incidence of cement voids or gaps, which might jeopardise the implant’s stability. The bone cement cannon extends the life of the joint replacement by filling voids and lowering the risk of loosening or implant failure.

Improved Surgical Efficiency: Using a bone cement cannon speeds up the cementing process, allowing surgeons to work more effectively. Surgeons can optimise surgical time and reduce overall operation duration with enhanced control over cement flow.

Cement Extrusion Excess is Reduced: Excess cement extrusion into surrounding tissues can cause difficulties. Bone cement guns help to prevent this by delivering cement in a controlled and targeted manner, lowering the danger of cement leakage and tissue damage.

Better Patient Outcomes: The precise and dependable fixing provided by bone cement guns helps to better patient outcomes. Patients benefit from improved joint stability, decreased postoperative discomfort, and speedier healing, allowing them to restore mobility and resume regular activities sooner.

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Comparison of caulking gun and Bone Cement Gun using for femoral cementation

Background: Currently the standard femoral cementing technique requires cement injection gun to deliver bone cement into the femoral canal. The standard cement gun is expensive and must be imported. There is no previous study about the use of a household caulking gun for femoral cementation.

Objective: To compare the radiographic quality of cementing technique in proximal femur between using Bone Cement Gun and caulking gun.

Material and method: Experimental study was performed on ten pairs of adult bovine femora. After the proximal femoral canal was prepared for cementation, each pair of bovine femora was randomly selected to be injected with bone cement with a standard cement gun in one side. The other side was injected with a caulking gun and the authors’ invented kit. The prosthesis was inserted and radiographs were taken. Radiographic quality of cement interdigitation was evaluated by the modified Barrack’s cement grading score. Cement distribution was categorized into 14 zones of Gruen. The data was statistically analyzed by Wilcoxon matched pairs signed-rank test. The inter-observer and intra-observer agreement was analyzed by Kappa analysis.

Results: Radiographic quality score of femoral cementation in the group using the caulking gun was not statistically different from in the group using the standard gun in all 14 Gruen zones (p > 0.05). Intra-observer and inter-observer agreement were moderate (Kappa = 0.71 and 0.59 respectively).

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