Injury to the Posterior Tibial Tendon After Open Reduction Internal Fixation of the Medial Malleolus

Author:

DeMill Shyler L.123,Bussewitz Bradly W.123,Philbin Terrence M.123

Affiliation:

1. Orthopedics Northwest, Yakima, Washington (SLD)

2. Steindler Orthopedic Clinic, Iowa City, Iowa (BWB)

3. Orthopedic Foot and Ankle Center, Westerville, Ohio (TMP)

Abstract

The management of ankle fractures with open reduction and internal fixation (ORIF) has been a proven method to help prevent deformity and posttraumatic arthritis. The incidence of continued ankle pain due to retained hardware after ORIF of ankle fractures has been documented. The goal of this study was to determine if the starting point for medial malleolus screw placement is associated with posterior tibial tendon (PTT) damage when performing ORIF of the medial malleolus. Patients that had ORIF of the medial malleolus and subsequent repair of the PTT with medial malleolar hardware removal were identified. Zones were established and labeled 1 through 3 as described in the literature. This template was used as an overlay on lateral ankle radiographs to analyze the position and assign zones to the medial malleolus screws. Fifteen patients met the inclusion criteria. Three screws were found in zone 1, 11 in zone 2, and 1 in zone 3. The middle and posterior zones (zones 2 and 3) contained 80% of the screws, which may potentially cause risk to the PTT. We conclude that there is an increased probability that medial malleolar hardware in zones 2 and 3 can compromise the PTT. Levels of Evidence: Therapeutic, Level IV: Case series

Publisher

SAGE Publications

Subject

Orthopedics and Sports Medicine,Podiatry,Surgery

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