791 Saito et al. Table 2. Complications, Treatment, Time From the Index TAA, and Case Number, by Ankle. Ankle 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Complication Treatment Time From the index TAA (Months) Case Number / Total Cases Case Number / Total Cases by Surgeon Gutter impingement Gutter impingement Gutter impingement Gutter impingement Gutter Impingement Hindfoot malalignment Postoperative stress fracture of the distal tibia Postoperative stress fracture of the distal tibia Subsidence of the tibial component Subsidence of the tibial component Subsidence of the talar component Delayed wound healing Subsidence of the tibial component Subsidence of tibial component Postoperative fracture of the medial malleolus Superficial infection Tibial bone cyst Open gutter debridement Open gutter debridement Open gutter debridement Open gutter debridement Open gutter debridement Calcaneal osteotomy Immobilization 13 6 7 20 5 5 5 24/64 26/64 23/64 7/64 53/64 46/64 21/64 11/22 by surgeon 3 13/22 by surgeon 3 10/22 by surgeon 3 4/22 by surgeon 3 19/25 by surgeon 2 12/17 by surgeon 1 6/17 by surgeon 1 Immobilization 6 8/64 5/22 by surgeon 3 Observation 7 48/64 18/25 by surgeon 2 Revision of the tibial and talar components 20 35/64 15/22 by surgeon 3 Wound closure Revision of the tibial component Revision of the tibial implant and fixation of the medial malleolus Oral antibiotics Observation 2 9 31/64 9/25 by surgeon 2 7 58/64 21/22 by surgeon 3 1 18 54/64 11/64 20/25 by surgeon 2 4/17 by surgeon 1 Abbreviation: TAA, total ankle arthroplasty. Figure 5. Weightbearing, anteroposterior and lateral radiographs of the ankle showing postoperative fracture of the medial malleolus and anterior subsidence of the tibial implant. The patient underwent a revision procedure for exchange of the tibial component and fixation of the medial malleolus. Figure 6. Graphical plot demonstrating pre- and postoperative tibiotalar coronal deformity. The line in the center of each diamond represents the mean value for each group. The vertical span of the diamonds demonstrates the 95% confidence interval for the mean of each group. The horizontal lines mark the standard deviation for the mean values. Tibiotalar coronal deformity was significantly improved postoperatively when compared to the preoperative condition (P < .0001). asymptomatic at the last follow-up visit and the radiolucencies were nonprogressive. The patients continued to be monitored. Radiolucencies were observed in only 2 cases