FAQs
Q: Do the ARCH and/or PURIST systems use a femur hook with a powered lift to elevate the femur?
A: No. Both the ARCH and PURIST systems use femoral support under the patient’s thigh, which acts as a fulcrum to elevate the proximal end of the femur during leg extension.
The Perineal Operative Post and Direct Anterior Approach (DAA) Top 360 accessories have femoral supports with variable heights. Increasing the height of the femoral support will increase the anterior movement of the proximal end of the femur during leg extension. The DAA Top 360 tabletop accessory offers the widest range of femoral support height adjustment, and the height can be changed intraoperatively through the drape.
Q: ARCH vs. PURIST, which product is best for me?
A: It depends on the surgeon's preference and OR setting. We have PURIST and ARCH users who are very satisfied with the performance of their leg positioning system of choice. The PURIST is designed specifically for anterior hip replacement, and the ARCH can be used for anterior hip replacement and femoral fractures.
ARCH Advantages
- Fully constrains the leg during extension and adduction
- More total rotation and adduction available
- Easily accessible flexion movements
- Adduction and abduction are possible at neutral extension
PURIST Advantages
- Automatic traction release during extension
- Fast Track Hybrid System™ for simultaneous traction and rotation control, simplifying hip reduction and dislocation
- Smaller footprint
- Increased mobility
- Built-in drape holder
- The PURIST operator can complete all surgical functions in a standing position.
For surgeons who currently use full-size fracture tables and are looking for firm, sturdy control of the leg, we usually recommend the ARCH. For surgeons looking for a light, ergonomic, staff-friendly device, we usually recommend the PURIST. However, this is highly variable and depends on individual surgeon preferences, staff familiarity with the anterior approach, surgical volume, geographic location, facility size, etc. Contact us for more information.
Q: Can the ARCH or PURIST be used for hip arthroscopy?
A: Neither the ARCH nor the PURIST is designed for hip arthroscopy.
Q: Are the ARCH and the PURIST compatible with any surgical table?
A: Yes, ARCH and PURIST are compatible with most general surgical tables. Over the last 10+ years, we have had very few situations in which our accessories did not fit!
Both our ARCH and PURIST systems are free-standing devices, and the accessories attach to the OR table siderails. Siderail dimensions can vary depending on the country, but this is not a problem. We offer various siderail attachments to fit different types of siderails. Our accessories are currently used in markets with different sizes of siderails, such as the USA, Europe, Australia, and Japan.
There is no need to pair our systems with a traction table. More basic OR tables, such as the STERIS 5095 or AMSCO 3085 SP, are preferred because they have fewer metal structures that could interfere with intraoperative imaging.
Q: What is the best way to set up the OR table using the ARCH or PURIST?
A: Follow all requirements of the OR table used. We recommend orienting the table when possible so the long portion of the table base will be situated under the patient’s center of gravity and pointing toward the ARCH or PURIST. This usually provides increased stability. Ensure there is adequate clearance for the C-arm to maneuver into place. Watch the ARCH In-Service Video or PURIST In-Service Video for more info.
Q: How are the ARCH and the PURIST classified in my country?
A: According to FDA and MDR regulations, ARCH and PURIST are classified as class I medical devices.
Q: What is the maximum patient weight for these devices?
A: The ARCH, PURIST, DAA Top 360, OLH, and POP are all designed for patient weights up to 500 lb. (227 kg). However, if the patient weight limit of the OR table is lower than this, the table weight limit takes priority. Ensure to check the orientation of the OR table, as different orientations often have different weight limits. Refer to the OR table user manual to ensure you operate within their specifications.
Q: Does the PURIST have patient height requirements?
A: No, the PURIST does not have patient height requirements.
Q: What maximum patient height can the Opposite Leg Holder accommodate?
A: About 7’5” (226cm). As leg length and total height are not perfectly correlated, this is an estimated maximum height.
Q: Do you have different traction boot sizes?
A: Yes. The ARCH, PURIST, and Opposite Leg Holder (OLH) all have a size medium boot in their standard configurations. We also offer a size small boot that can be purchased separately.
Q: What is the footprint of the PURIST?
A: 61 cm (2’) x 91 cm (3’)
Q: Is the black perineal post pad (of the POP or DAA Top 360) reusable?
A: Yes, the black perineal post pad is designed to be reusable. Its closed-pore design allows the sealed surface to be easily cleaned. However, we recommend replacement after every 10 cases.
Q: Are single-use accessories required with ARCH and PURIST?
A: No. However, we offer a variety of single-use products that increase patient safety and efficiency, especially in Direct Anterior THA cases.
United States
Canada (EN)
United Kingdom
Australia
Brasil
México
OR Table Only (Off-Table)
PURIST
Full Orthopedic Table
