[Cranioplasty in the adult. The use of autologous osteoperiosteal grafts taken from the external cranial table].
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Adolescent↗
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Rheumatic manifestations of psoriasis.
Psoriatic arthritis was described as a distinct rheumatic disease in the 1960s, and subsequently grouped among the spondyloarthropathies. Recently, other rheumatic manifestations of psoriasis, such as enthesopathy and osteoperiostitis, were recognized. This study attempts to examine the rheumatological and radiological manifestations of Psoriasis and their association with skin and nail disease. Eighty-one psoriatic outpatients were interviewed consecutively during 6 months. Questionnaires and indices were carried out to assess the extent and severity of skin and nail involvement, as well as the activity and severity of peripheral and axial rheumatic manifestations. Radiological examination of the hands, feet, spine and pelvis was also done for all patients. Fifty-nine psoriatic outpatients (73%) had rheumatic manifestations clinically and/or radiologically (Psoriatic arthropathy "PsA"). Clinical peripheral arthritis was found in 14 (23.7%) of the patients with PsA, being oligoarticular in 11, polyarticular in two, and exclusively of the distal interphalangeal (DIP) joints in one patient. Sacroiliitis and/or spondylitis were found in 38 (64.4%), enthesopathy in 36 (61%), dactylitis in two (3.3%), radiological DIP involvement in 24 (40.6%), and radiological osteoperiostitis in 49 (83%) of patients with PsA. Most PsA patients had more than one rheumatic manifestation, while four patients (6.7%) had isolated enthesopathy without any other rheumatic manifestations. Subungual hyperkeratosis of the nails was significantly correlated with PsA (p<0.05), as well as with clinical arthritis, enthesopathy, and DIP involvement (p<0.01), while other types of skin and nail lesions were correlated with selected rheumatic manifestations. The performance of existing criteria for PsA was poor, as individual sets favored either sensitivity or specificity. Psoriatic arthropathy (PsA), occurring in about three-quarters of hospital outpatients with psoriasis, is more common than previously thought. More sensitive and specific criteria for the diagnosis and classification of PsA need to be developed, taking into account the recently described clinical and radiological manifestations.
Adult↗
[The anterior interosseous flap in wrist and hand surgery: a series of fifteen cases].
INTRODUCTION: Fifteen anterior interosseous flaps were used to reconstruct wrist and hand defects in fifteen patients (thirteen men and two women) with a mean of 38 years (27-42 years). PATIENTS AND METHODS: Seven anterior interosseous osteoperiosteal flaps and eight anterior interosseous osteocutaneous flaps were used. Seven island flaps and eight free flaps based on the anterior interosseous artery were raised. The indications were scaphoid non-union (4 cases), first metacarpal non-union (2 cases), proximal phalanx non-union (1 case), Kienböck's disease (2 cases), osteocutaneous phalangeal defects (3 cases), osseous capitatum defect (1 case) and intracarpal arthrodesis (2 cases). RESULTS: Postoperatively, one fracture of the distal end of the radius was noted because of a large osteoperiosteal corticotomy. Osseous reconstruction was usually consolidated at three months. One failure was noticed (Kienböck's disease). No significant deformity was noticed in the donor site. CONCLUSION: The anterior interosseous flap seems to be a useful alternative to reconstruct small or moderate defects in wrist and hand surgery.
Adult↗
The iliac crest region: donor site for vascularized bone periosteal and soft tissue flaps.
A review is presented of the classic vascularized iliac crest transfer and to show useful variations on this technique. A technical variation to reconstruct mandibular defects, the semisegmented iliac crest graft, is described. Another variation, the half iliac crest graft, is presented for use in the neovascularization of avascular necrosis of the femoral head. When such a flap is raised with a large periosteal flap and overlying muscle or skin, or both, as a composite flap, a primary osteoperiosteal tube can be created to reconstruct segmental defects in long bones. This primary osteoperiosteal tube is secondarily transformed into a completely osseous tube.
Bone Transplantation↗
Coral grafting supplemented with bone marrow.
Limited success in regenerating large bone defects has been achieved by bridging them with osteoconductive materials. These substitutes lack the osteogenic and osteoinductive properties of bone autograft. A direct approach would be to stimulate osteogenesis in these biomaterials by the addition of fresh bone-marrow cells (BMC). We therefore created osteoperiosteal gaps 2 cm wide in the ulna of adult rabbits and either bridged them with coral alone (CC), coral supplemented with BMC, or left them empty. Coral was chosen as a scaffold because of its good biocompatibility and resorbability. In osteoperiosteal gaps bridged with coral only, the coral was invaded chiefly by fibrous tissue. It was insufficient to produce union after two months. In defects filled with coral and BMC an increase in osteogenesis was observed and the bone surface area was significantly higher compared with defects filled with coral alone. Bony union occurred in six out of six defects filled with coral and BMC after two months. An increase in the resorption of coral was also observed, suggesting that resorbing cells or their progenitors were present in bone marrow and survived the grafting procedure. Our findings have shown that supplementation of coral with BMC increased both the resorption of material and osteogenesis in defects of a clinical significance.
Animals↗
Psoriatic onycho-periostitis. Report of three cases.
Authors report three cases of psoriatic onycho-periostitis (great toe in two cases, thumb in one case). In a recent study, they demonstrated that osteoperiostitis of the distal phalanx of the great toe was significantly more frequent in patients with psoriatic arthritis than in other groups (cutaneous psoriasis, rheumatoid arthritis, spondylarthropathy, connective tissue diseases, and control subjects), suggesting that the existence of osteoperiostitis of the distal phalanx of the great toe is valuable for the diagnosis of psoriatic arthropathy.
Adult↗
[Considerations on the principles of treatment of aseptic pseudarthrosis of the leg with the Ilizarov method].
The surgical treatment of aseptic pseudarthrosis of the leg may be summarised in the following methods, the indications of which are based on the features of the centre of the lesion: hypertrophic or closed pseudarthrosis: paraosteal osteosynthesis with a plate; osteoperiosteal decortication and autoplastic bone transplant; intramedullary osteosynthesis (Küntscher, Rush); external osteosynthesis; plaster; atrophic or lax pseudarthrosis: paraosteal osteosynthesis with a plate; osteoperiosteal decortication and autoplastic bone transplant; intramedullary osteosynthesis (Küntscher, Rush); fibula-pro-tibia; intertibio-fibular transplant.
Fibula↗
[Extramedullary blast crisis in chronic myeloid leukemia].
Out of 113 cases of blastic crisis (BC) of Ph'-positive chronic myeloid leukaemia (CML), 13 had extramedullary involvement, this being the first BC manifestation in 5 instances. The median interval between extramedullary BC and bone marrow BC in these last was 2 months. Lymph nodes were the commonest extramedullary site of BC (8 cases), followed by osteoperiosteal and central nervous system (CNS). Lymph node BC occurred as generalised lymphadenopathy in most cases. Osteoperiosteal BC was seen as severe bone pain on osteolytic areas, whereas CNS blast crisis occurred as meningeal leukaemia in one case and chloroma in another. Lymphoid phenotype of blast cells was found in only 2 instances. The median survival of the patients after the onset of extramedullary involvement was 3 months.
Adult↗
Non-union of fractures of the atlas.
Eighteen patients who had a fracture of the atlas were evaluated clinically and by computed axial tomography an average of forty-six months (range, two to 164 months) after injury. The purpose of the evaluation was to determine the effect of the pattern of the fracture, the quality of osseous healing, and the method of primary immobilization on the long-term outcome. Three (17 per cent) of the patients had a non-union, and two of them had a poor clinical result. These two patients had had a unilateral comminuted fracture--that is, one fracture that was anterior and one that was posterior to the lateral mass, with an associated osteoperiosteal avulsion of the transverse ligament on the same side of the ring of the atlas. Six (33 per cent) of the eighteen patients had an osteoperiosteal avulsion of the transverse ligament. The avulsions usually progressed to osseous union. Rupture of the mid-substance of the transverse ligament was uncommon. No patient had a neurological deficit or late neurological sequelae that were directly attributable to the fracture of the atlas.
Adolescent↗
Local delivery of indomethacin by a polyorthoester inhibits reossification of experimental bone defects.
Inhibition of orthotopic reossification after surgical removal of bone is sometimes indicated and may be accomplished by implantation of interpositional materials or by systemic administration of indomethacin. However, implantation of nonresorbable foreign material may induce a chronic inflammation and predispose to infections; and systemic administration of indomethacin may induce systemic adverse effects. We studied the effect of local delivery of indomethacin by a bioerodible polyorthoester on the reossification of segmental defects of the radius in rats. We divided 45 Wistar rats into three groups, A-C. A 3.5 mm-long middiaphyseal osteoperiosteal resection of the right radius was made in each rat. The defect was filled with 15 mg of polyorthoester with 5% indomethacin in group A and 15 mg of polyorthoester without drug in group B. No material was implanted in the defects in the group C rats. The rats were killed 50 days postoperatively. The mean area of the residual defects were greater in the defects with the polyorthoester with 5% indomethacin compared with defects with polyorthoester without drug or without implant as judged by computer-assisted area measurements on radiographs. By light microscopy, no inflammation was seen and only traces of the polyorthoester could be detected in the defects filled with the polyorthoester with or without indomethacin. The results of this study suggest that the polyorthoester may be used as a bioerodible system for local delivery of indomethacin to inhibit reossification of skeletal defects without tissue reaction, unabsorbed carrier, or systemic effects.
Animals↗
Omental angiogenic lipid fraction and bone repair. An experimental study in the rat.
A lipid material extracted from the omentum has previously been shown to contain a potent angiogenetic activator (20), capable of creating intense vasoproliferation in traumatized tissues (19). This study was undertaken to analyze the efficacy of local administration of this omental lipid fraction on osseous vascularization and bone repair. An osteoperiosteal segmental femoral defect in the rat was replaced by a demineralized allogenic bone graft exposed to continuous local delivery of omental lipid via an implanted miniosmotic pump. Saline solution delivered in the same way served as a control. Neovascularization and bone formation in the transplant were quantitatively evaluated by means of dynamic radioisotopic bone imaging, radiographic photodensitometry, microangiography, and biomechanical testing. Compared with the control group, the omental lipid angiogenic fraction-treated specimens showed an 80% overall increase (p less than 0.001) in bone density as well as a twofold increase (p less than 0.001) in regional blood perfusion, maximal at 2 weeks following surgery. At 12 weeks, biomechanical testing demonstrated significantly higher union rate (p less than 0.05) and strength (p less than 0.01) in the treated specimens as compared with the controls. These data demonstrate that the omental lipid fraction factor has potent angiogenic properties that enhance bone blood perfusion and bone regeneration.
Absorptiometry, Photon↗
Bone grafts prepared with selective cell retention technology heal canine segmental defects as effectively as autograft.
Using a canine critical-size segmental defect model, a two-phased study was undertaken to evaluate the healing efficacy of demineralized bone and cancellous chips (DBM-CC) enriched with osteoprogenitor cells using a Selective Cell Retention (SCR) technology. The goals of this study were: 1) to determine the bone-healing efficacy of SCR-enriched grafts versus autograft, and 2) to assess the value of clotting SCR-enriched grafts with platelet-rich plasma (PRP). Thirty dogs were included in Phase I: 18 dogs were treated with an SCR-enriched DBM-CC graft clotted with autologous bone marrow, and were compared to 12 autograft controls. In Phase II, 24 animals were divided into 4 groups of 6 animals, each treated with a different bone graft material: 1) iliac crest autograft, 2) DBM-CC alone, 3) DBM-CC saturated with marrow, and 4) SCR-enriched DBM-CC clotted with PRP. All grafts were placed unilaterally in a 21-mm long osteoperiosteal femoral, instrumented, critical-size defect. Radiographs were obtained for all animals postoperatively and every 4-16 weeks; animals were then sacrificed. All femurs were prepared for histology. Femurs in the Phase II study were also analyzed by micro-CT. At 16 weeks, healing--defined by bridging bone across the defects--was observed in 50% of the DBM-CC alone group and 67% of the DBM-CC saturated with marrow group; 100% of the autograft and SCR-enriched DBM-CC groups were healed. Histologically, grafts clotted with PRP showed more mature bone than those implanted with autologous bone, which in turn were similar to those implanted with bone marrow clotted SCR-enriched grafts. These results demonstrated that: 1) SCR-enriched DBM-CC was equivalent to autograft to repair critical-size defects, and 2) while not statistically significant, PRP may have accelerated bone maturation when used to clot osteoprogenitor-enriched DBM-CC grafts--as compared to cell-enriched, DBM-CC grafts without PRP--in large animal models.
Animals↗
Mechanical and radiological assessment of the influence of rhTGFbeta-3 on bone regeneration in a segmental defect in the ovine tibia: pilot study.
Limitations in the use of autologous bone graft, which is the gold standard therapy in bone defect healing, drive the search for alternative treatments. In this study the influence of rhTGFbeta-3 on mechanical and radiological parameters of a healing bone defect in the sheep tibia was assessed. In the sheep, an 18-mm long osteoperiosteal defect in the tibia was treated by rhTGFbeta-3 seeded on a poly(L/DL-lactide) carrier (n = 4). In a second group (n = 4), the defect was treated by the carrier only, in a third group (n = 4) by autologous cancellous bone graft, and in a fourth group (n = 2) the defect remained blank. The healing process of the defect was assessed by weekly in vivo stiffness measurements and radiology as well as by quantitative computed tomographic assessment of bone mineral density (BMD) every 4 weeks. The duration of the experiment was 12 weeks under loading conditions. In the bone graft group, a marginally significant higher increase in stiffness was observed than in the PLA/rhTGFbeta-3 group (p = 0.06) and a significantly higher increase than in the PLA-only group (p = 0.03). The radiographic as well as the computed tomographic evaluation yielded significant differences between the groups (p = 0.03), indicating the bone graft treatment (bone/per area, 83%; BMD, 0.57 g/cm(3)) performing better than the PLA/rhTGFbeta-3 (38%; 0.23 g/cm(3)) and the PLA-only treatment (2.5%; 0.09 g/cm(3)), respectively. Regarding the mechanical and radiological parameters assessed in this study, we conclude that rhTGFbeta-3 has a promoting effect on bone regeneration. However, under the conditions of this study, this effect does not reach the potential of autologous cancellous bone graft transplantation.
Absorbable Implants↗
Laminopediculoplasty: a new method of reconstructing the posterior elements of the thoracic spine.
We describe a new method of reconstructing the posterior elements of the thoracic spine following decompression of the cord through a wide posterior approach. Osteoperiosteal corticocancellous grafts are harvested from the iliac wing, then bent into a semicircle with the periosteum on the inside and inserted between the resected vertebral pedicles where they act as a base for further grafting. The posterior spinoligamentous complex is preserved and reattached. This technique permits circumferential decompression of the thoracic cord through a posterior approach and posterior thoracic interbody fusion. Fifteen patients were treated by this method and a solid fusion achieved in each case. No bony ingrowth into the spinal canal was observed.
Adult↗
Canine cortical bone autograft remodeling in two simultaneous skeletal sites.
The morphological and physical aspects of cortical bone autografts implanted in dogs for 1-9 months in two differently located skeletal defects are reported with a twofold aim: to provide a reference system for further comparison with various allografts and to delineate a general pattern of cortical bone graft healing. A 3-cm osteoperiosteal gap was created in the diaphyseal segment of the ulna and fibula of mature dogs. The grafts, freed from periosteum and bone marrow, were then inverted and replaced for the autografts in the left limb bone without internal fixation or external splints. On the right side, different allografts were tested. A group of three animals also had an unfilled segmental resection on the right as control. Dogs were observed for 1, 2, 3, 6, and 9 months and were able to bear weight within 3 days. Twenty-eight ulnae and 27 fibulae were available for this autograft study. Fluorochromes were injected at mid-term and at the end of the observation. All the grafts were assessed morphologically by cross-section microradiographs and ultraviolet light microscopy, and a morphometric analysis for porosity and fluorescence was done. To evaluate the physical aspects of graft healing, the recovered ulnar autografts, when available, were submitted to photon absorptiometry and to torsional loading. Morphologically, resorption was found to invade the cortical bone graft transversely through radial tunnels, and in addition to the host-bone-graft junction, the entire transplant surface provided another way for revascularization. The highest porosity level was achieved 2 months after surgery for both ulna and fibula, while new bone formation, as assessed by fluorochromes, was most important at 3 months. At 9 months, porosity remained above the normal range as determined in a set of five nongrafted dogs. While the lack of correlation for porosity between the two grafts suggests that local factors are more important in graft resorption, the observed correlation for fluorescence indicates that new bone deposition is more dependent upon skeletal metabolic activity. Within each graft, porosity and new bone formation were not well correlated. In the ulna, the bone mineral content (BMC) reflected the graft volumetric variations during the remodeling, with the lowest mean value at 3 months. For each graft, BMC was well correlated with the torsional stiffness. When torsionally loaded, the maximal tangential shear stress at failure of the graft was negatively related to its cortical porosity.(ABSTRACT TRUNCATED AT 400 WORDS)
Animals↗
[Psoriatic onycho-pachydermo- periostitis].
BACKGROUND: Psoriatic onycho-pachydermo-periostitis is a rare manifestation of psoriatic arthritis. It is characterized by the trias of psoriatic onychosis, tender soft tissue thickening, and osteoperiostitis of the distal phalanges in the absence of distal interphalangeal arthritis. Recommendations for the treatment of symptomatic POPP are not available. AIM OF THE STUDY: Treatment of a symptomatic 49-year old male. METHODS: Sulfasalazine 1000mg b.i.d., p.o. for 8 months followed by radiotherapy of both hands with 6x0.5 Gy. RESULTS: No clinical response was observed with either of the two treatments. CONCLUSIONS: The course of this single case does not support sulfasalazine treatment or radiotherapy in psoriatic onycho-pachydermo-periostitis.
Arthritis, Psoriatic↗
The posterior radial epiphysis free flap: a new donor site.
The authors present the anatomy and clinical applications of a new donor site for free or pedicled transfers. It is localised on the posterior aspect of the forearm, over the distal radius, and based on a posterior branch of the anterior interosseous artery. It can be used as a free skin flap, osteoperiosteal or osteocutaneous transfer. Reinnervation is possible. Indications in hand surgery are numerous. Five consecutive cases have been operated upon successfully.
Adult↗