Bekler, H. | Bulut, G. | Usta, M. | Gokce, A. | Okyar, F. | Beyzadeoglu, T.

Article | 2008 | Acta Orthopaedica et Traumatologica Turcica42 ( 2 ) , pp.125 - 129

Objectives: This experimental study was designed to find new ways of improving stabilization of fractures in osteoporotic elderly patients through alterations made in the configuration and geometry of locked screw-plate fixation used in the conventional plate technique. Methods: Four screw configurations with varying angulations were used for plate-bone construction. Forty iron plates of high quality (100×35×3 mm) were divided into four groups and two screw holes, 3 mm in diameter, were drilled on each plate at a distance of 15 mm. In group A, the holes were drilled so that the screws would be vertically sent to the bone interface. . . .In the remaining groups, the holes were drilled for convergent (group B, 15°) and divergent (group C, 15°; group D, 30°) screw orientation. Screw-plate fixation was tested in a modified osteoporotic bone (Osteoporotic Generic Bone, Synbone) on an Instron materials testing system with an axial pullout force of 0.1 mm/sec. Failure loads were read from load-displacement curves and the type of failure was noted. Results: Screws placed in divergent orientations showed the highest axial pull-out strength (group C, 83.3 N/mm; group D, 80.8 N/mm), followed by convergent placement (72N/mm) and vertical placement (66.7 N/ mm). The type of failure was breakage of the bone sample in divergent configurations, and screw pull-out in convergent and vertical configurations. Conclusion: Divergent constructs may be a promising alternative to conventional screw placement in treating osteoporotic fractures. ©2008 Turkish Association of Orthopaedics and Traumatology Daha fazlası Daha az

Bekler, Halil | Bulut, Güven | Usta, Metin | Gökçe, Alper | Okyar, Fethi | Beyzadeoğlu, Tahsin

Article | 2008 | Acta Orthopaedica et Traumatologica Turcica42 ( 2 ) , pp.125 - 129

Amaç: Bu deneysel çalışmada, konvansiyonel kilitli plak yönteminden farklı olarak, vidaların konfigürasyon ve geometrilerinde yapılan değişikliklerle yaşlı osteoporotik hastalarda stabilizasyonun dayanıklılığını artırmanın yolları arandı. Çalışma planı: Farklı vidalama açılarına sahip dört plakkemik konfigürasyonu oluşturuldu. Yüksek kaliteli 40 adet demir plak (100x35x3 mm) dört gruba ayrıldıktan sonra, her birine 15 mm aralıkla ve 3 mm çapında iki adet delik açıldı. Grup A’da delikler vidaların paralel (0) gönderileceği şekilde, grup B’de vidaların eksenleri bir noktada birleşecek şekilde (konverjan 15), grup C ve D’de ise vida ek . . .senleri birbirinden uzaklaşacak şekilde (diverjan, sırasıyla 15 ve 30) açıldı. Vida testi için, modifiye osteoporotik kemik (Osteoporotic Generic Bone, Synbone) modellerine tespit edilmiş plaklar Instron materyal test cihazına yerleştirilerek 0.1 mm/ sn hızında aksiyel sıyrılma uygulandı. Her örnek için dayanma gücünü aşan yük seviyeleri yük-yer değiştirme eğrilerinden okundu ve yetersizlik tipi kaydedildi. Sonuçlar: En yüksek sıyrılma direncini diverjan düzenekler (grup C’de 83.3 N/mm; grup D’de 80.8 N/mm) gösterdi. Ortalama sıyrılma direnci konverjan düzenekte 72 N/mm, klasik paralel düzenekte 66.7 N/mm bulundu. Yetersizlik tipi diverjan düzeneklerde kemik kırılması iken, konverjan ve paralel düzeneklerde vida sıyrılması şeklindeydi. Çıkarımlar: Osteoporozlu hastalardaki kemik kırıklarının tedavisinde diverjan düzenekler, klasik vida yerleşiminin yerini alabilecek bir seçenek olabilir. Objectives: This experimental study was designed to find new ways of improving stabilization of fractures in osteoporotic elderly patients through alterations made in the configuration and geometry of locked screw-plate fixation used in the conventional plate technique. Methods: Four screw configurations with varying angulations were used for plate-bone construction. Forty iron plates of high quality (100x35x3 mm) were divided into four groups and two screw holes, 3 mm in diameter, were drilled on each plate at a distance of 15 mm. In group A, the holes were drilled so that the screws would be vertically sent to the bone interface. In the remaining groups, the holes were drilled for convergent (group B, 15°) and divergent (group C, 15°; group D, 30°) screw orientation. Screw-plate fixation was tested in a modified osteoporotic bone (Osteoporotic Generic Bone, Synbone) on an Instron materials testing system with an axial pullout force of 0.1 mm/sec. Failure loads were read from load-displacement curves and the type of failure was noted. Results: Screws placed in divergent orientations showed the highest axial pull-out strength (group C, 83.3 N/mm; group D, 80.8 N/mm), followed by convergent placement (72 N/mm) and vertical placement (66.7 N/mm). The type of failure was breakage of the bone sample in divergent configurations, and screw pull-out in convergent and vertical configurations. Conclusion: Divergent constructs may be a promising alternative to conventional screw placement in treating osteoporotic fractures Daha fazlası Daha az

Altintas, F. | Gurbuz, H. | Erdemli, B. | Atilla, B. | Ustaoglu, R.G. | Ozic, U. | Kinik, H.

Article | 2008 | Acta Orthopaedica et Traumatologica Turcica42 ( 5 ) , pp.322 - 327

Objectives: We investigated risk factors for venous thromboembolism (VTE), prophylaxis measures employed, and incidence of symptomatic deep venous thrombosis (DVT) and pulmonary embolism (PE) in patients undergoing major orthopaedic surgery (MOS). Methods: An open, multicenter, prospective, observational study was conducted in 21 medical centers, comprising 899 patients. Of these, 316 patients (35.2%) underwent total hip arthroplasty (THA), 328 patients (36.5%) underwent total knee arthroplasty (TKA), and 255 patients (28.4%) underwent surgery for hip fractures (HF). Pharmacologic prophylaxis was employed in all the patients. Result . . .s: Risk factors for VTE were seen in 73.2% of the patents, the most common being obesity (72%) and prolonged immobilization (36.3%). Low-molecular-weight heparin (91.1%) and fondaparinux (8.9%) were used for prophylaxis, which was short-term in 273 patients (30.4%) and long-term in 626 patients (69.6%). Mechanical prophylaxis was performed with compression stockings in 610 patients (67.9%) and by intermittent pneumatic compression in 67 patients (7.5%). During three-months of follow-up, symptomatic DVT and PE were seen in eight (0.9%) and four patients (0.4%), respectively. Mortality occurred in 10 patients (1.1%). Complications of major and minor bleeding were seen in eight (0.9%) and 40 (4.5%) patients, respectively. Conclusion: Effective VTE prophylaxis is associated with low risk of clinically apparent DVT and PE in MOS. © 2008 Turkish Association of Orthopaedics and Traumatology Daha fazlası Daha az

Altıntaş, Faik | Gürbüz, Hakan | Erdemli, Bülent | Atilla, Bülent | Ustaoğlu, Recep Gür | Öziç, Uğur | Kınık, Hakan

Article | 2008 | Acta Orthopaedica et Traumatologica Turcica42 ( 5 ) , pp.322 - 327

Amaç: Ülkemizde majör ortopedik cerrahi (MOC) için farmakolojik profilaksi uygulanan hastalarda venöz tromboembolizm (VTE) risk faktörleri, kullanılan profilaksi yöntemleri ve klinik bulgu veren derin ven trombozu (DVT) ve pulmoner emboli (PE) sıklığı araştırıldı. Çalışma planı: Prospektif, çokmerkezli, açık, müdahalesiz bir gözlem çalışması planlanarak, 21 merkezden 899 hasta çalışmaya alındı. Olguların 316’sında (%35.2) total kalça protezi (TKP), 328’inde (%36.5) total diz protezi (TDP), 255’inde (%28.4) kalça kırığı (KK) cerrahisi uygulandı. Tüm hastalarda farmakolojik DVT profilaksisine başvuruldu. Sonuçlar: Olguların %73.2’sind . . .e VTE risk faktörleri vardı. En sık görülen risk faktörleri obezite (%72) ve uzamış immobilizasyon (%36.3) idi. Profilaksi için olguların %91.1’inde düşük molekül ağırlıklı heparin, %8.9’unda fondaparinuks kullanıldı. Olguların 273’üne (%30.4) kısa dönem, 626’sına (%69.6) uzun dönem profilaksi uygulandı. Mekanik profilaksi 610 olguda (%67.9) elastik çorap ile, 67 olguda (%7.5) aralıklı hava basınç cihazı ile uygulandı. Üç aylık takip sonucunda sekiz olguda (%0.9) klinik bulgu veren DVT, dört olguda (%0.4) PE gelişti. Mortalite 10 olguda (%1.1) görüldü. Kanama komplikasyonu sekiz olguda (%0.9) majör, 40 olguda (%4.5) minör idi. Çıkarımlar: Etkin VTE profilaksi yapıldığında MOC’de klinik bulgu veren DVT ve PE oranları düşük olmaktadır. Objectives: We investigated risk factors for venous thromboembolism (VTE), prophylaxis measures employed, and incidence of symptomatic deep venous thrombosis (DVT) and pulmonary embolism (PE) in patients undergoing major orthopaedic surgery (MOS). Methods: An open, multicenter, prospective, observational study was conducted in 21 medical centers, comprising 899 patients. Of these, 316 patients (35.2%) underwent total hip arthroplasty (THA), 328 patients (36.5%) underwent total knee arthroplasty (TKA), and 255 patients (28.4%) underwent surgery for hip fractures (HF). Pharmacologic prophylaxis was employed in all the patients. Results: Risk factors for VTE were seen in 73.2% of the patents, the most common being obesity (72%) and prolonged immobilization (36.3%). Low-molecular-weight heparin (91.1%) and fondaparinux (8.9%) were used for prophylaxis, which was short-term in 273 patients (30.4%) and long-term in 626 patients (69.6%). Mechanical prophylaxis was performed with compression stockings in 610 patients (67.9%) and by intermittent pneumatic compression in 67 patients (7.5%). During three-months of follow-up, symptomatic DVT and PE were seen in eight (0.9%) and four patients (0.4%), respectively. Mortality occurred in 10 patients (1.1%). Complications of major and minor bleeding were seen in eight (0.9%) and 40 (4.5%) patients, respectively. Conclusion: Effective VTE prophylaxis is associated with low risk of clinically apparent DVT and PE in MOS Daha fazlası Daha az

Ceylaner, G. | Ceylaner, S. | Ustunkan, F. | Inan, M.

Article | 2008 | Acta Orthopaedica et Traumatologica Turcica42 ( 4 ) , pp.289 - 291

The effect of genetic factors on hip dislocation, acetabular dysplasia, and developmental dysplasia of the hip (DDH) has long been recognized. In this report, we presented a large family that showed single gene inheritance for DDH. Pedigree analysis of a pregnant woman revealed a history of DDH in 16 members of the family. Although the pedigree showed autosomal dominant inheritance with reduced penetrance, the prevalence of DDH was considerably high, almost accounting for one-third of the family members, and skipping only one generation. Of 16 cases, three patients were diagnosed at our center. The remaining 13 patients were diagnos . . .ed at other centers. Dislocation was diagnosed very late in most of the family members, while four cases were diagnosed at birth. All family members were informed by a detailed clinical letter and recommended evaluation for DDH at every birth. © 2007 Türk Ortopedi ve Travmatoloji Dernegi Daha fazlası Daha az

Ceylaner, Gülay | Ceylaner, Serdar | Üstünkan, Fulya | İnan, Muharrem

Article | 2008 | Acta Orthopaedica et Traumatologica Turcica42 ( 4 ) , pp.289 - 291

Genetik faktörlerin kalça çıkığı, asetabüler displazi ve gelişimsel kalça displazisi (GKD) üzerine etkileri uzun zamandır bilinmektedir. Bu yazıda, oldukça nadir bir durum olan tek gen kalıtımı gösteren GKD’li bir aile sunuldu. Hamile bir kadının pedigri analizi sırasında 16 aile ferdinde GKD öyküsü olduğu öğrenildi. Pedigri analizi düşük penetranslı otozomal dominant kalıtım göstermesine karşın, GKD’li olgu sayısının yüksek olduğu (aile bireylerinin neredeyse üçte biri) ve sadece bir kuşak atladığı görüldü. Olguların üçü kliniğimizde değerlendirildi ve bu hastalara GKD tanısı kondu. Diğer 13 hastaya daha önce başka kliniklerde tanı . . . konmuştu. Kalça çıkığı genellikle çok geç tespit edilmekle beraber, dört olguda tanı doğum sırasında konmuştu. Aile bireyleri ayrıntılı bir klinik mektup ile bilgilendirildi ve aileye her doğumu takiben değerlendirme önerildi. The effect of genetic factors on hip dislocation, acetabular dysplasia, and developmental dysplasia of the hip (DDH) has long been recognized. In this report, we presented a large family that showed single gene inheritance for DDH. Pedigree analysis of a pregnant woman revealed a history of DDH in 16 members of the family. Although the pedigree showed autosomal dominant inheritance with reduced penetrance, the prevalence of DDH was considerably high, almost accounting for one-third of the family members, and skipping only one generation. Of 16 cases, three patients were diagnosed at our center. The remaining 13 patients were diagnosed at other centers. Dislocation was diagnosed very late in most of the family members, while four cases were diagnosed at birth. All family members were informed by a detailed clinical letter and recommended evaluation for DDH at every birth Daha fazlası Daha az

Bekler, Halil İbrahim | Beyzadeoğlu, Tahsin | Gökçe, Alper | Servet, Erkan

Article | 2008 | Acta Orthopaedica et Traumatologica Turcica42 ( 2 ) , pp.135 - 138

Aşil tendonu yaralanmalarının cerrahi tedavisinde amaç tendonu yeniden sağlamlaştırmaktır. Bu amaçla çeşitli dikiş teknik ve malzemeleri kullanılabilir. Dikiş malzemesi çok ya da tek lifli, emilebilir veya emilemez olabilir. Bu yazıda, Aşil tendonunun cerrahi onarımından sonra süreğen akıntı gelişen dört olgu sunuldu. Bu olguların hepsinde kalın poliglaktin (Vicryl) kullanılmıştı. Olgulara, dikiş malzemelerini temizlemek için açık cerrahi girişim uygulandı. Hastalar sorunsuz iyileşti. Aşil tendonu onarımlarında gereğinden kalın dikiş malzemesi ve büyük düğüm kullanmaktan kaçınılmalıdır. Çok lifli emilebilir cerrahi iplikler de bakte . . .ri yerleşimine ve doku reddine yatkınlıkları nedeniyle ek sorun yaratabilirler. The aim of surgical treatment of Achilles tendon ruptures is to restore stability of the tendon. Various suture techniques and materials can be used for this purpose. Suture materials may be polyfilament or monofilament, absorbable or nonabsorbable. We presented four patients who developed severe chronic discharges associated with thick polyglactine (Vicryl) used during open repair of acute Achilles tendon ruptures. Surgical removal of suture materials and debridement resulted in complete improvement without any complications. The use of thick suture materials and large knots should be avoided in the repair of Achilles tendon ruptures. Polyfilament and absorbable sutures may pose problems due to their tendency to cause bacterial colonization and tissue rejection Daha fazlası Daha az