A 51-year-old man reported with complaints of recent onset of left knee pain. He had sustained a displaced comminuted fracture of his left patella following a fall 15 months ago. Modified tension band wiring with cerclage wiring was successfully performed, and the patient was recovering well. He was well for the last 14 months and returned to his job without any pain or functional disability. However, he started experiencing deep-seated pain within the left knee with restriction of movements for the last 4 weeks. There was no recent history of any fall or trauma to the left knee. Clinical examination of the left knee revealed no patella or joint line tenderness but pieces of wires were palpable percutaneously. There was no effusion and the cruciate and collateral ligaments were intact; there was no neurovascular deficit. There was no extensor lag and knee extension power was normal. The range of motion of the knee was painfully restricted.\nRadiographs of the left knee revealed a united fracture patella with broken cerclage wire (). The inferio-medial segment of the broken cerclage wire was found to have migrated into the posterior compartment of the knee joint and hooked anteriorly at the base of anterior cruciate ligament.\nThe patient underwent surgery for removal of the patella wires. Fluoroscopic examination before surgery revealed the posterior part of wire had shifted its position with anterior part of it still hooked with anterior cruciate ligament. An arthroscopic examination of the knee was done through the standard anteromedial and anterolateral portal. Any structural damage including chondral lesion due to wire migration was not found, a migrated piece of wire was found embedded at the base of anterior cruciate ligament, going toward posterior compartment of knee through medial side of notch, which was removed (). We used intraoperative fluoroscopy (), before finishing the arthroscopic examination of knee, which demonstrated that, there was no remaining piece of wire in posterior compartment of knee. The rest of the broken wires were removed via a midline anterior knee incision along the old scar. The patella was stable after complete removal of the wires, indicating union of the rest of the fragments.\nThe patient was discharged the next morning and his wounds healed at 2 weeks. Complaints of knee pain resolved completely following the surgery, and the patient was able to resume work at 2 weeks.
A 28-year-old male patient from Turkey presented to our clinic with complaints of palpable foreign bodies under the skin in the dorsolateral side of his right foot (Fig. ). Except for the palpable and moving body of about 6 cm length under the skin in his foot, he had no functional complaints. An X-ray demonstrated the presence of a K-wire of about 6 cm length in front of the lateral malleolus in the dorsolateral side of his foot (Fig. ). There was a cerclage wire from the tension band fixation of his patella in the ipsilateral knee (Fig. ). There was no diagnostic challenge. Our patient explained that he was operated on by another orthopedic surgeon in the same hospital after a patellar fracture in 2007 and he had not attended regular checks. He also reported that a wire similar to the one in the X-ray had protruded through his skin in 2009 and he had removed the wire by pulling it out. This statement explained why the K-wire was not in place.\nOn physical examination, our patient showed no restriction in his knee movement. Routine blood test results showed no abnormalities. Palpation of the K-wire showed that the wire was mobile under his skin (Fig. ). Our patient reported that, after removing the first wire, he had not felt any serious discomfort during the migration of the other wire over a period of 5 years.\nOur patient was taken to the operating room. After staining, a 3-mm skin incision was made that coincided with the proximal end of the K-wire, and the K-wire was pulled out with the help of clamp (Fig. ). Our patient was discharged on the same day. The cerclage wire in his patella was not removed to avoid creating complications and because of our patient’s unwillingness to have it removed.