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Wheeless' Textbook of Orthopaedics

PreOp Planning for IM Nailing



- IM Nailing Technique:

- Open Femur Frx:

- Radiographs:
    - always look for evidence of a pathologic lesion on x-ray, noting that it would be
          disasterous if a nail were driven thru an occult osteosarcoma or chondroscaroma;
    - AP pelvis: (rule out concomitant injuries)
          - Hip Dislocation
          - Femoral Neck Frx
    - Lateral of Knee:
          - look for knee effusion (as evidenced by anterior displacement of supra-
                  patellar pouch fat pad) which may indicate knee ligament injury;
    - Leg Lengths:
            - w/ comminuted frx it is of paramount importance to achieve equalization
                  of leg lengths;
                  - obtain long leg cassette of uninjured leg w/ a radiolucent ruler
                          included on film;
                  - long leg cassettes w/o a ruler are notoriously inaccurate;
    - Canal Width:
            - in adolescents and young adults carefully assess the width of the
                  canal at the isthmus on both the AP and Lateral views;
                  - a tight canal leads can lead to special problems during the case
                          such as difficulty in reaming, difficulty in reducing the
                          fracture (and even passing the guide wire across the frx)
                  - it is important ahead of time to have the proper selection of nails
                          available, small hand held reamers, and one or more surgical
                          assistants to help with the reduction;
                  - since frx reduction will be difficult, skeletal traction is a must,
                          since it allows the knee to be flexed (which relaxes the
                          hamstrings and gastrocnemius) which facilitates reduction;
                  - one method that can be helpful is to first ream the proximal fragment to
                          the desired canal width;
                          - subsequently, it will be easier to pass the guide wire across
                                the fracture site;

- Classification:
    - it is necessary to consider frx location and comminution;
    - Comminuted Frx;
          - comminution extending proximally or distally to the frx site needs to
                  be carefully assessed prior to IM nailing;
          - preoperative measurements of uninjured femur are needed inorder to obtain
                  equal leg lengths postoperatively;
          - w/ longitudinal fissures extending away from the frx site, consider open
                  cerclage wiring prior to IM nailing;
    - Proximal Frx:
    - Distal Frx:
          - w/ distal fractures, its essential to obtain perfect nail length since
                  and nail that is too short may have interlocks at the level of the
                  frx, and a nail that is too long will end up lying proud above the
                  greater trochanter;

- Traction:

- Positioning:

- Frx Reduction
      -
proximal frx:
      -
Distal Frx:

- Implant Selection (Synthes:

- IM Nail Insertion Technique:







Original Text by Clifford R. Wheeless, III, MD.