Intramedullary Rodding of Femoral Shaft Fractures

CHAPTER 23
Intramedullary Rodding of Femoral Shaft Fractures


Scott D. Cordes


Indications


1. Closed displaced femoral shaft fractures


2. Open grade 1 or 2 femoral shaft fractures (can be done acutely after a thorough irrigation and debridement of the open wound)


Contraindications


1. Gross wound contamination


2. Nonviable soft tissue envelope


3. Proximal or distal shaft fractures with significant metaphyseal extension


Preoperative Preparation


1. Appropriate extremity radiographs including hip and knee joints


2. Template radiographs to ensure that femoral nails of the appropriate length and diameter are available


3. Neurovascular exam with emphasis on assessing arterial blood flow and distal nerve function


4. Assessment of the skin and soft tissues; evaluate for compartment syndrome.


Special Instruments, Position, and Anesthesia


1. General or regional anesthesia; avoid long-acting regional anesthesia because they make assessment of compartment syndrome difficult.


2. Position patient supine on a fracture table.


3. Check the fluoroscopy prior to draping the patient to ensure that it is in working order and that the C-arm can be positioned to obtain adequate AP and lateral images from the hip to the knee.


Tips and Pearls


1. Position the patient on the fracture table with adequate leg and torso adduction. The exact amount of adduction depends on patient size and body habitus. Extremity adduction allows optimal access to the piriformis fossa and minimizes rod impingement during insertion.


2. Make sure the skin over the entry point for the distal screws is not “draped out” of the operative field.


3. Make sure adequate radiographs of the femoral neck have been obtained and reviewed. Concurrent femoral neck fractures are not uncommon and can be difficult to detect.


4. A controlled, steady force on the awl is required because of the dense bone in the piriformis fossa. Avoid allowing the awl to slip off the bone or cut out posteriorly.


5. Initial passage of the blunt tip guide rod can be difficult through the proximal third of the femur. Consider “choking up” on the blunt-tipped guide rod with the T-handle or vise grip. This will make rod passage easier with less chance of bowing or bending of the guide rod.


What To Avoid


1. Attempt to avoid internal or external rotational malalignment of the fracture when impacting the femoral nail. The patella should be directed toward the ceiling to grossly adjust the rotational alignment of the limb. Reconfirm alignment prior to distal locking.


2. Avoid reckless passes with the guide rod. Slow meticulous passage across the fracture site using proprioceptive feel is imperative.


3. Avoid allowing the guide rod to “back out” past the fracture site during reaming.


Postoperative Care Issues


1. Initially, most patients are allowed to ambulate either non-weight bearing (NWB) or toe-touch weight bearing (TTWB).


2. Depending on the stability of the fracture, protected weight bearing can be advanced approximately 6 weeks after surgery. This is dependent on radiographic evaluation and clinical symptoms.


Operative Technique


1. Transport the patient to the operating room. Appropriate anesthesia is administered.


2. After adequate anesthesia is achieved, position the patient on a fracture table with adequate leg and torso adduction. The exact degree of extremity adduction depends on patient size and body habitus. Adduction allows optimal access to the piriformis fossa and minimizes rod impingement during insertion. Care should be taken to ensure that the patient’s position allows adequate clearance for the fluoroscopy. Pad all bony prominences. Place the ipsilateral arm across the chest. Place the foot of the involved extremity in a well-padded fracture boot (Fig. 23–1).


3. Apply longitudinal traction through the fracture boot. If a tibial traction has been inserted, remove the pin. Prep the pin with betadine. Cut the pin with a bolt cutter flush with the skin and remove the traction pin from the opposite side with a hand drill. Apply sterile dressing. Alternatively, if a tibial traction pin has been inserted, it can be used to apply longitudinal traction. If the pin is used for traction, remove it at the end of the procedure as outlined above.

Only gold members can continue reading. Log In or Register to continue

Stay updated, free articles. Join our Telegram channel

Jun 5, 2016 | Posted by in ORTHOPEDIC | Comments Off on Intramedullary Rodding of Femoral Shaft Fractures

Full access? Get Clinical Tree

Get Clinical Tree app for offline access