A new technique in the treatment of distal radius fractures: The Micronail

Amaç: Distal radius kırıklarının stabilizasyonunda kullanılan Micronail® intramedüller titanyum osteosentez cihazı 2006 yılında Hollanda'da üretilmiştir. Distal radius kırıklarının yaklaşık %30'u Micronail® ile tedavi edilebilir. Bu makalede bu yeni tedavi yöntemi hakkında bilgi verilmekte ve ilk klinik sonuçları sunulmaktadır. Çalışma planı: Micronail® kliniğimize ulaştıktan sonra bir yıl içinde 10 hastadaki 11 kırıkta kullanı lmıştır. Hastalarımızın çoğu (n=9) kadındı ve ortalama yaşları 81.1 (dağılım 69-88 yaş) idi. Micronail® sekiz 23-A2 radius kırığı ve üç 22-A3 önkol kırığında kullanılmıştır. Kırık pozisyonu düzeltildikten sonra radiusun stiloid çıkıntısı üzerine küçük bir kesi yapılmış ve Micronail® intramedüller olarak yerleştirilmiştir. Bir yönlendirme sistemi kullanılarak distal fragmana üç adet vida, proksimal fragmana iki adet kilit vidası takılmıştır. Beş gün atel uygulandıktan sonra tam yüklü egzersizler başlatılmıştır. Bulgular: Altı haftadan sonra hastaların altısı tam hareket açıklığını kazanmıştır. ‹ki hasta sırasıyla dislokasyon ve el bilek kanalı sendromu nedeniyle atele alınmıştır. Bir hastada osteosentez bölgesinin çevresinde yeni bir travmaya bağlı kırık oluşması yüzünden alçı uygulanmıştır. Bu dokuz hastada ağrı şikayeti olmamıştır. Tüm kırıklar büyük çapta bir kaynama sorunu yaşanmaksızın iyileşmiştir. Analog bir skala ile bilek işlevlerinin tüm hastalarda işlemden sonra iyi ila mükemmel derecede olduğu belirlenmiştir. Dört ay sonra tüm hastaların ameliyat edilen bileklerinde iyi seviyede bir hareket açıklığı sağlanmıştır; iki bilek arasındaki fark maksimum 10° olmuştur. Çıkarımlar: Micronail® ile elde edilen ilk sonuçlar umut vericidir. Bu teknik diğer ameliyat tekniklerinin bilinen dezavantajları olmaksızın, minimal invazif olma, stabil bir intramedüller tespit sağlama avantajlarına sahiptir. Ardından tam yüklü egzersizlerin başlatılabildiği kısa bir immobilizasyon süresi yeterli olmaktadır.

Distal radius kırıklarının tedavisinde yeni bir teknik: Micronail

Objective: In 2006, an intramedullar titanium osteosynthesis for the stabilization of distal radius fractures was introduced in The Netherlands: the Micronail®. The Micronail® can be used in approximately 30% of distal radius fracture treatments. This article presents the introduction of this new treatment, and first clinical results. Methods: In the first year after introduction of the Micronail® in our clinic, 10 patients have been treated with 11 Micronails® (eight 23-A2 radius fractures and three distal 22-A3 forearm fractures). Our patients were mainly woman (n=9) and had a mean age of 81 years (range 69-88 years). After re-alignment of the fracture, the Micronail® was placed into the medulla through a small incision over the styloid process of the radius. By using a guidance system, three locking buttress screws were placed in the distal radial fragment and two locking bolts were placed in the proximal radius. Postoperative treatment consisted of a splint for 5 days, after which full loadcarrying exercises can be started. Results: After 6 weeks, six patients had a full range of motion. Two patients were still in a cast because of secondary dislocation and CTS, respectively. One patient had a cast because of newly sustained trauma, which resulted in a peri-osteosynthetic fracture. Pain was not recorded in these patients. All fractures healed without major loss of alignment. Patients experienced good to excellent results on an analog scale showing the wrist function. At 4 months, all patients had a good range of motion in the operated wrist; the difference between the two wrists was a maximum of 10°. Conclusion: The first results of Micronail® are promising. It has the advantages of other operative techniques (minimally invasive, stable, intramedullar) without their known disadvantages. Short immobilization is sufficient, after which full load-carrying exercises are indicated.

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Acta Orthopaedica et Traumatologica Turcica-Cover
  • ISSN: 1017-995X
  • Başlangıç: 2015
  • Yayıncı: Türk Ortopedi ve Travmatoloji Derneği
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