Table 1.
Surgical Steps, Pearls, and Pitfalls
Surgical Steps | Pearls | Pitfalls |
---|---|---|
Anterior ankle arthroscopy | The anteromedial portal is made in a position of dorsiflexion, and the arthroscope is placed to see the lateral gutter. | A lack of dorsiflexion will result in poor visualization of the lateral gutter. |
Lateral gutter preparation | Everything between the AITFL and the ATFL has to be removed. | Inadequate clearance will make correct placement of the tunnel difficult. |
Malleolar tunnel | The arthroscope is used in portal 2 and the instruments in portal 3. | Poor placement of portal 3 can result in misdirection of the malleolar tunnel. |
Tendoscopy | The arthroscope is introduced in portal 4 and the instruments in portal 3. After good preparation, the arthroscope is switched to portal 3 and the instruments to portal 2. | It is important to identify the posterior tibiofibular ligament because this can be mistaken for the CFL. |
Talar tunnel | The talar tunnel is placed at a point halfway up the anterior border of the lateral facet of the talus. | Care has to be taken to avoid the tunnel running into the subtalar joint. |
Malleolar tunnel | The arthroscope is placed in portal 2 and the instruments in portal 3. | It is important not to miss the remnant fibers of the CFL. |
Placement of calcaneal tunnel | The arthroscope is placed in portal 3 and the instruments in portal 2. | It is necessary to protect the peroneal structures from damage. |
Position of transplant in malleolar tunnel | The arthroscope is in portal 2 and the transplant in portal 3. The surgeon pulls on the toggle-lock suture. | If the transplant is too large, it will not go sufficiently far into the 6-mm tunnel. |
Placement of transplant in malleolar tunnel | Tension is made with the foot at 90°. | It is important to put the screw guide deep inside to yield good placement of the screw. |
Placement of calcaneal end of transplant | Tension is made with the foot at 90°. | The surgeon uses a suture to maintain tension on the graft; otherwise, the CFL reconstruction will be too loose. |
Placement of talar end of transplant | Tension is made with the foot at 90° by pulling on 1 post of the JuggerKnot anchor. The transplant is fixed in the tunnel by the screw. | It is important to maintain the tension on the JuggerKnot. If it is too weak, the surgeon instead can pass the guidewire through onto the medial side of the talus with a pulling suture linked to the transplant to draw it through to the correct tension. |