Subcortical cancellous bone grafting in the treatment of delayed union of tibial shaft fractures.
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We describe 4 patients (3 males aged 54-59, 1 female aged 25) with regional migratory osteoporosis (RMO). All patients had at least 2 episodes of periarticular osteoporosis. The interval between attacks ranged from 5 months to 11 yr and attacks lasted from 3 months to 2 yr. In 2 cases septic arthritis was initially suspected. The ankle joints were affected in 3 patients, hips in 2 and knees in 2. An unusual feature in 2 patients was involvement of the small joints of the foot demonstrated by 99mTc-methylene diphosphonate (99mTc-MDP) joint imaging. Joint imaging corroborated the clinical diagnosis in 2 patients before regional osteoporosis was visible radiologically. As there are no specific laboratory features of RMO, joint imaging may be helpful in the diagnosis of suspected cases before the development of radiographic stigmata.
Two farmers with post-traumatic dorsal dislocation of the navicular have been presented. Because of the compression of the vessels, nerves and tendons the navicular has been resected in one case. Flat foot has developed in both instances. No increase in adduction of the forefoot has been observed.
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300 medial cuneiform bones were examined to explore the different forms of the joint surface on the lateral side of the bone facing the intermediate cuneiform bone. This joint surface consists of two parts, a proximal one and a dorsal one. The proximal part is orientated dorsoplantarally. At its proximal margin there exists a tight contact with the proximal joint surface for the navicular bone. The dorsal part is sited at the dorsal margin of the lateral side of the bone. Different forms of fusion of these part could be seen. In 62.67% they show tight confluence. In 17.67% the fusion is limited to a slight contact. In the rest, 19.67%, there exists no contact between these two parts. These forms correlate to the proximal height of the bone. A large proximal height extends the degree of separation of the dorsal joint surfaces (consisting of the dorsal section of the proximal part and the whole dorsal of the joint surface for the intermediate cuneiform bone as well as the joint surface for the second metatarsal bone). Therefore these joint surfaces are split to their components.