AcuMatch_Family
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Catalog excerpts

AcuMatch_Family - 1

Operative Technique L-Series Low Demand Femoral Stems P-Series Press Fit Femoral Stems C-Series Cemented Femoral Stems an accurate match every time

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INTRODUCTION The AcuMatch® Comprehensive Hip System includes cemented femoral stems, press-fit femoral stems and acetabular components. The femoral stems specifically address two of the issues that are critical to long-term, successful reconstruction: joint stability and femoral-canal fit with or without cement. any primary femoral stem without the need to upsize or downsize, making the entire surgical procedure much simpler for a surgeon and the operating room staff. Acetabular implants and instruments are designed to streamline the surgical procedure with quickconnect attachment...

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Stem Design: Universal Features and Benefits Neck Angle The neck angle for all AcuMatch femoral stems is 131 degrees. This angle is ideal for restoring a patient’s anatomical offset. All Exactech Hip Systems are indicated for use in skeletally mature individuals undergoing primary surgery for hip replacement due to osteoarthritis, rheumatoid arthritis, osteonecrosis, post-traumatic degenerative problems of the hip and for treatment of proximal femoral fractures where prosthetic replacement is determined by the surgeon as the preferred treatment. Components of Exactech Hip Systems are also...

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Tools • A/P X-ray of pelvis centered on the pubic symphysis • Pencil that will not damage X-ray • Straight edge • AcuMatch templates with magnification corrected rule • Goniometer/protractor Traditional templating methods may be used. For an accurate determination of required offset, vertical limb length and stem size, the following detailed templating method may be used. Establishment of Reference Points Step 1: on the x-ray, a straight line is drawn across the bottom of the pelvis touching both ischial tuberosities equally. The line should be extended far enough to reach each lesser...

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Note: Because the neck angle, neck length and offset geometry of core sizes 2-5 are the same, intra-operative changes of the stem size in this size range will not alter the offset and/or limb length determinations made during pre-operative planning. Step 4: When the template is in proper position, the level of the femoral neck cut is marked with the punch-outs provided on the template. Step 5: These dots should be connected to depict the femoral neck osteotomy level. The distance of the neck cut above the lesser trochanter can then be measured and recorded. Step 2: The anticipated stem size...

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operative technique overview Femoral Neck Osteotomy Neutral Opening of Femoral Canal – Box Osteotome Canal Entry with T-Handle Tapered Reamer Using Lateralizing Reamer to Facilitate Neutral Broach Placement Canal Reaming (Optional) Assembly and Insertion of Broach 5 Refining Neck Osteotomy with Calcar Planer when Needed

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Assembly of Neck Trial and Head Trial onto Broach Determining Canal Diameter with Centralizer Sizer (When Using AcuMatch C-Series or L-Series Cemented Stems) 11 Final Stem Implantation Stem Insertion 12 Femoral Head Impaction and Final Reduction 6

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APPROACH AND EXPOSURE The AcuMatch Comprehensive Hip System is compatible with any standard surgical exposure. in this technique, the posterolateral approach is described. DISLOCATION AND OSTEOTOMY Step 1: The hip should be dislocated by flexion, adduction and internal rotation. placing a bone hook around the femoral neck may help in difficult cases (Figure 1). Step 2: Soft tissues along the intertrochanteric line to the proximal border of the lesser trochanter should be cleared. Step 3: When tight, the gluteus maximus tendon may be released to improve exposure. The limb should be...

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Step 2: Initial entry into the femoral canal should be made with the T-Handled Starter Reamer (Figure 4). This Reamer aids in establishing neutral axial position for insertion of the Lateralizing Reamer, Broaches, and, if used, conical reamers. Figure 4 Initial Entry into Femoral Canal Step 3: The Lateralizing Reamer should be inserted into the canal until the cutting edges begin to engage in the medial aspect of the greater trochanter (Figure 5). The blunt, noncutting pilot of the instrument is designed to contact the inside of the femur without damaging or removing bone. This lateralizing...

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The broach is inserted into the femoral canal in a few degrees of anteversion. The surgeon should alternate impaction and withdrawal of the broach as the final size is approached (Figure 8). A Slap Hammer may be used with the Broach Handle (Figure 9). Once the maximum size Broach is in place, the Broach Handle should be released from the Broach. Figure 8 Insertion of Broach Step 5: Neck (or calcar) planing is recommended to create a flat surface for optimal fit when using a prothesis with a collar. The Calcar Planer should be placed in either hole of the Broach for planing of the femoral...

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b. he handle is gripped and squeezed T downward in order to expand the distal feeler arms for endosteal contact. The handle is then released. The ring indicates the size of the centralizer. Figure 12 Size Indicator Ring of Centralizer Should be Flush with Body Prior to Measurement a. he metal indicator ring of the distal T Centralizer Sizer should be advanced until it touches the handle (Figure 12). The sizer shaft is inserted into the femur, keeping the stem length of the implant, as indicated on the sizer, at the resection level (Figure 13). c. ue to varying measurements in different D...

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Stem Placement (Cemented Stem Only) Step 1: The appropriately sized cemented stem should be selected by referring to the last Broach size used (Ex: If the last Broach size used is a size 4, a size 4 implant should be selected). The cemented impant is sized to accommodate for the cement mantle. Step 2: Cement should be injected retrograde with a long nozzle injection gun. Step 3: The cement column should be pressurized using a rubber dam or other method as determined by the surgeon. Step 4: The stem, with centralizer attached, is inserted into the center of the cement-filled canal (Figure...

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