Back to Authors

Johnson, Kenneth A.

Mayo Clinic

Mayo Clinic in Arizona

Citations 4

Tibiotalocalcaneal Arthrodesis with an Intramedullary Device
Kile, Todd A. , Donnelly, Richard, Gehrke, Jon C., Werner, Mark E., Johnson, Kenneth A.

Foot & Ankle International | March 3, 2013 | Volume: 15 | Issue: 12 | Pages: 669-673

10.1177/107110079401501208 Get It

An intramedullary fixation device was devised by the senior author (K.A.J.) to use in conjunction with a previously described method for tibiotalocalcaneal arthrodesis. Satisfactory results were obtained in approximately 87% of the initial 30 patients; union was radiographically or clinically evident in all but two patients. Many of these patients had been offered or were considering below the knee amputation; only two ultimately chose this reconstructive option at a follow-up that ranged from 4 to 27 months.
Ingrown Toenail: Results of Surgical Treatment
Pettine, Kenneth A., Cofield, Robert H. , Johnson, Kenneth A., Bussey, Randy M.

Foot & Ankle | March 3, 2013 | Volume: 9 | Issue: 3 | Pages: 130-134

10.1177/107110078800900307 Get It

When an ingrown toenail is unresponsive to simple treatment methods, surgical treatment options are available. At our institution, 100 patients with 142 affected toes were surgically treated by one of five techniques and observed for a mean of 9.7 years (range, 7.8 to 10.0 years). Plastic nail wall reduction was effective (four of four nail edges) for mild disease. After marginal nail excision with chemical matrix ablation, the recurrence rate was 20% (12 of 61 nail edges); eight required further surgical treatment. Marginal nail excision combined with surgical excision of the associated nail matrix (Heifetz procedure) was more successful: recurrence occurred in only 6% (6 of 95 nail edges), and only one toe required further surgical treatment. For severe nail deformity, nail ablation with matrix excision (Zadik procedure) was followed by recurrence in 33% (three of nine toes); all three required additional surgical treatment. After terminal amputation (Lapidus/Thompson-Terwilliger procedure), the recurrence rate was 12% (2 of 17 toes); only one nail required additional surgical treatment.
Neurilemoma of the Lower Extremity
Spiegl, Paul V., Cullivan, W. Timothy, Reiman, Herbert M., Johnson, Kenneth A.

Foot & Ankle | March 3, 2013 | Volume: 6 | Issue: 4 | Pages: 194-198

10.1177/107110078600600404 Get It

A series of 76 patients with 85 neurilemomas of the lower extremity was reviewed. The tumors were located throughout the lower extremity and had varied clinical presentations, which often posed problems in diagnosis. Pain, however, was a consistent symptom, and 63 (83%) of the patients presented with local or radiating (or both) pain. Electromyography was done in seven cases, but the results were abnormal in only two. When evaluating a painful mass or an atypical pain in the lower extremity, the clinician should have a high index of suspicion for neurilemoma.
Plantar Foot Pain
Buck, Peter G., Johnson, Kenneth A.

Foot & Ankle | March 3, 2013 | Volume: 1 | Issue: 1 | Pages: 59-60

10.1177/107110078000100118 Get It