The authors studied 37 presumed calcaneonavicular tarsal coalitions from the Hamann-Todd Osteological Collection at the Cleveland Museum of Natural History. The anatomy of the coalitions and the associated subtalar and transverse tarsal joints was quite variable. The coalitions in 8 specimens completely spared the anterior facet of the calcaneus and in 7 specimens it was partially replaced by t...

Subtalar dislocation is a rare injury in traumatology. The lateral variant exceptional and provides more complications. This often occurs following high energy trauma involves simultaneous of the subtalar talo-navicular joints. We report two cases dislocation, medial lateral, with good evolution.

This is a case report of a 24-year-old man who presented with increased pain and firm swelling of the right foot after a minor twisting injury. Radiography, computed tomography (CT) and magnetic resonance imaging (MRI) findings showed ancillary information that was helpful for surgical treatment. The final diagnosis was confirmed as chondroblastoma of the navicular bone based on the pathology r...

UNLABELLED Dorsal rotatory subluxation of the navicular, a common sequela of resistant surgically treated clubfeet, presents a challenging treatment problem. This subluxation typically progresses after posteromedial release. Patients develop a cavovarus foot deformity and complain of pain, gait problems, and difficulty with shoe wear. Previous attempts at soft tissue release and reduction have ...

OBJECTIVE To compare the long term outcomes of the two treatment options for navicular stress fractures: non-weightbearing cast immobilisation and surgical fixation. DESIGN Retrospective case study. PARTICIPANTS Subjects aged 18 years and older who had been treated for a navicular stress fracture more than two years previously. MAIN OUTCOME MEASURES Questionnaire based analogue pain score...

Osteonecrosis, also referred to as avascular necrosis, refers to the death of cells within bone caused by a lack of circulation. It has been documented in bones throughout the body. In the foot, osteonecrosis is most commonly seen in the talus, the first and second metatarsals, and the navicular. Although uncommon, osteonecrosis has been documented in almost every bone of the foot and therefore...

The authors report their experience with the use of a vascularised pisiform bone graft based on the dorsal branch of the ulnar artery to provide osseous support and an efficient vascular aid especially in non-unions of the carpal navicular bone with avascular necrosis of its proximal pole and in stage III Kienböck's disease. The pisiform can replace the proximal pole of the navicular bone in to...

Extracorporeal shock wave therapy was effective in decreasing the lameness associated with navicular syndrome in 81% of the horses as determined by an unmasked evaluator and in 56% of the horses with masked evaluators. Extracorporeal shock wave therapy provided a non-invasive, effective mechanism to decrease the lameness associated with navicular syndrome. There were no complications associated...