Surgical Technique Guide

Surgical Protocol

United Orthopedic Device Description Bipolar II Cap – Bipolar II can be used in hemi-arthroplasty which is indicated in the case of femoral neck fracture, trauma, and the early-stage avascular necrosis when the acetabulum remains intact. INDICATIONS U2 Bipolar Implant is intended for use in combination with UNITED Femoral System for cemented or cementless hemiarthroplasty. This device may be used for the following conditions: 1. on-inflammatory degenerative joint disease such as osteoarthritis, avascular necrosis, ankylosis, protrusio acetabuli, and N painful hip dysplasia. 2. Inflammatory degenerative...

United Orthopedic Product Overview One-piece Assembly with Simple Locking Ring Mechanism - esigned to allow surgical efficiency D while maintaining strength - etal surface roughness of Ra ≤ 0.02 μm exceeds M the ISO Standard of Ra ≤ 0.5 μm - inimum polyethylene thickness of 5 mm M Bipolar II Cap and Femoral Head Compatability Chart Highly Polished Surface - Designed to reduce the wear of the acetabulum Outer Diameter Head size Anti-rotation Design - inimizes micromotion between the M cap and the PE liner Outer Beveled Lip Design - llows for easy reduction A

United Orthopedic Surgical Overview B. Trial Assembly and Reduction

United Orthopedic A.Size the Acetabulum Use the preoperative template or measure the excised femoral head to estimate acetabular size. B.Trial Assembly and Reduction Assemble the corresponding size Femoral Head Trial to the Bipolar Trial. Connect it to the Neck Trial and perform the trial reduction. Assemble the Bipolar Trial to the Bipolar Trial Handle to measure the acetabular size. Ensure the Bipolar Trial fits in the patients’ acetabulum. The Bipolar II Cap is available in 1 mm increments from 38 mm to 56 mm. Head Trial Sizes (mm) Bipolar Trial Handle U2 Femoral Head Trial

United Orthopedic C.Trial Disassembly Insert the Bipolar Trial Handle tip into the outer portion of the threaded hole on the Bipolar Trial to disassemble the Bipolar Trial from the Femoral Head Trial. D.Implant Assembly Connect the Femoral Head Impactor to the Universal Handle and impact the femoral head until it is firmly seated. Push the Bipolar II Cap onto the femoral head. Bipolar Trial Handle U2 Femoral Head Trial Femoral Head Impactor Universal Handle

United Orthopedic Appendix Implant Disassembly Utilize the Head Remover to push the inner ring of Bipolar II Cap to disassemble the Bipolar II Cap from the femoral head. Head Remover

Order Information Catalog Number Special Order Items Inner Diameter Outer Diameter Order Information Catalog Number BIOLOX® delta Ceramic Head * The actual spherical diameter of a 22 mm metal head is 22.2 mm. *BIOLOX® is a registered trademark of the CeramTec Gro

Please note that this Surgical Technique Guide has been authored in the English language. Any translations into other languages have not been reviewed or approved by United Orthopedic Corporation and their accuracy cannot be confirmed. Any translated guide should be reviewed carefully prior to use and questions regarding a Surgical Technique Guide should be directed to United Orthopedic Corporation at unitedorthopedic.com/contact The CE mark is valid only if it is also printed on the product label. © 2021 United Orthopedic Corporation.