Trunnionosis in metal-on-polyethylene total hip arthroplasties: Report two cases.

INTRODUCTION AND IMPORTANCE: Several studies have discussed trunnionosis in metal-on-metal total hip arthroplasties. However, trunnionosis in metal-on-polyethylene total hip arthroplasties has been less frequently discussed. CASE PRESENTATION: In this study, trunnionosis in two male patients undergoing metal-on-polyethylene total hip arthroplasty, which was done to treat femoral head osteonecrosis were reported and discussed adequately. CLINICAL DISCUSSION: Total hip arthroplasties (THA) were done for the treatment of femoral head osteonecrosis in these cases. In the first case, trunnionosis occurred one year after the revision of the primary THA, and in the second case occurred ten years after the primary THA. Both of these cases were presented with reduced range of motion. After surgery, the symptoms were resolved, and the patients remained complication-free until the last follow-up. CONCLUSION: This report raises awareness regarding the importance of trunnionosis as a serious complication of modular total hip arthroplasty.

Periscapular Fibromatosis With Intrathoracic Invasion in a 3-Year-Old Boy.

Fibromatosis is an extremely rare tumor that arises from the myofascial tissue and has high rates of infiltration and recurrence. Fibromatosis of the chest wall is even less common, and wide surgical resection is the preferred treatment alternative to radiation therapy, chemotherapy, and systemic treatments. We report the case of a 3-year-old boy with radiologically and pathologically confirmed fibromatosis of the periscapular region who underwent wide resection. We discuss diagnosis, treatment options, and technical pearls for a desmoid tumor of the chest wall. The resection should go through healthy tissue because of the infiltrative nature of the tumor. Although visceral involvement did not occur in this case, surgeons should be aware of its possibility, and surgery should be performed by a multidisciplinary team, including a pediatric orthopedic surgeon, a thoracic surgeon, and an anesthesiologist. [Orthopedics. 2022;45(5):e276-e279.].

Biliary stent migration to hepatic duct-case report of a late complication.

Endoscopic retrieval of proximally migrated biliary plastic stents may be technically challenging and sometimes unsuccessful. Here we report the case of a 59-year-old woman with a migrated biliary stent in the right hepatic duct, which was diagnosed after the patient presented with cholangitis. The patient presented with constant abdominal pain in the right upper quadrant lasting for two days, along with nausea and bilious vomiting. The stent was retrieved by a polypectomy snare after failure of biliary basket and forceps. We performed a novel procedure for extraction of a migrated plastic stent, by using a polypectomy snare.