Catastrophic wear in uncemented acetabular cups after Total Hip Arthroplasty. A case series.

Introduction: Catastrophic wear is a rare outcome following Total Hip Arthroplasty (THA), documented to happen in less than 0.5% of THA. We present 5 cases of revision THA performed successfully on 5 patients presenting Catastrophic wear, following Total Hip Arthroplasty (THA).

Fracture of the astragalus in pediatric patients, an unusual entity.

Introduction And Importance: The fracture of the astragalus is an unusual bone fracture (Ladero and Concejero, 2004) and is even more unusual in pediatric patients. The astragalus is a bone surrounded by cartilage and other structures making it difficult to appreciate on an X-ray which can lead to misdiagnosis (Ladero and Concejero, 2004; Inal and Inal, 2014) and could lead to not applying the right treatment and risk avascular necrosis or other sequelae.

Case Presentation: 3-year-old male with foot pain and edema+++, unable to walk or stand up since a fall 2 days before, had a doubtful diagnosis after an x-ray showed no apparent bone injury.

Solitary enchondroma in a metatarsal bone, an incidental discovery.

Introduction: Enchondromas are rare benign bone tumours and their discovery is usually incidental, since in most cases it presents with no symptoms.

Presentation Of Case: A 30 year old male who comes to the office after suffering a forced inversion of the left foot, he has edema of the left lateral malleolus, pain and is unable to walk; no deformities or other alterations are observed and palpable pulses of adequate intensity and frequency are recorded. The radiography shows soft tissue edema and no bone lesions.