SpaceCrea: A surgical device to provide better accessibility in the hip joint during the procedure of hip arthroscopy

During the last decade the procedure of hip arthroscopy became rapidly more popular in orthopedic surgery. Hip arthroscopy is a minimal invasive procedure that require only small incisions to perform the surgery. It is a relative difficult procedure with a long learning curve. This is because the anatomy of the hip joint is complex compared to other joints in the body. The hip joint is a ball and socketed joint surrounded by a capsule of ligaments. Although traction is applied on the patient’s leg there is still not much space available for surgery inside the joint. The instruments that are used during the procedure do not fit well with the complex anatomy. Due to the limited space that is available, soft tissue of the hip joints capsules must be removed to create better access and sight for surgery. To provide better access to the hip joint during the procedure of hip arthroscopy, the SpaceCrea is developed as part of this graduation project. It is a minimal invasive instrument that provides better accessibility in the hip joint during CAM removal by lifting the capsule with an inflatable device. An ellipse shaped balloon is inserted through a portal and by pressurizing it with saline the balloon will exert forces on the capsule and lift it to provide more space. This idea is developed by using a design process consisting of three phases, the analysis-, the concept development- and the embodiment-phase. To proof the feasibility of the idea, model calculations are made to understand the hip joint capsule behavior under external loads. Based on these calculations lifting the capsule by using an inflatable device is deemed to be feasible.

Subject

hip arthroscopy
minimal invasive surgery
balloon
inflating device
creating workspace
accessibility

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Student theses

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master thesis

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