Is there a relationship between the lengths of the ipsilateral clavicle and the ulna? An anthropometric and statistical study

Abstract

Aim: Mathematical relationships between bones in close proximity are useful for determining the proper length of comminuted or severely displaced bones during surgical reconstruction. This study examined the relationship between the lengths of the clavicle and ulna to develop a length propotion formula that can facilitate obtaining the proper length of the clavicle during surgery for displaced and comminuted fractures.

Methods: The study enrolled 130 individuals (76 males, 54 females)who were healty for their upper extremities and was seen in our orthopedics outpatient clinic during April 2019 to June 2019. The right and left clavicles and ulnas of each individual were measured. All measurements were peformed by two of the authors in an blinded fashion.

 Results. Mean overall age was 32.2 years. There were significant correlations between the clavicle and ipsilateral ulnar lengths (p=0.001). However, there was a length difference between the right and left clavicles. The left clavicle was 9.00 ± 2.16 mm longer than the right in males and 7.13 ± 2.03 mm longer in females (p=0.001). There was no significant length difference between the right and left ulnas in either sex (0.84 ± 1.033 mm in males and 0.52 ± 0.818 mm in females).

Conclusion. There is a significant ratio between the clavicle and ulna lengths on both the right and left sides in both sexes, but it isn’t the same for males and females. We propose that these length proportion formula can be used for determining the clavicle length for the surgical treatment of comminuted fractures with plates and particularly with nails.

Keywords

• Comminuted fracture,clavicle,ulna,length ratio

Klavikula ve ulna boyları arasında anlamlı bir oran varmı? Antropometrik ve istatistiksel bir çalışma

Öz

Amaç: Parçalı ve deplase kırıkların cerrahi rekonstrüksiyonu sırasında opere edilen kemiğin uygun boyunun tahmin edilebilmesi için bu kemik boyu ile komşu diğer bir kemiğin matematiksel olarak boy oranının kullanılması oldukça  kullanışlıdır. Bu çalışmada parçalı klavikula kırıkları cerrahi tedavisi sırasında kullanılmak üzere, klavikula ve ulna kemikleri arasında matematiksel olarak anlamlı bir boy oranı olup olmadığının araştırılması amaçlanmıştır.

Yöntemler: Nisan-Haziran 2019 dönemi içerisinde, ortopedi ve travmatoloji polikliniğimizde görülen üst ekstremiteleri sağlıklı 130 hasta (76 erkek, 54 kadın) çalışmaya dahil edildi. Bütün hastaların sağ ve sol ulna ve klavikulaları birbirinin ölçümlerine kör 2 yazar tarafından, aynı yöntemler kullanılarak ölçüldü.

Bulgular: Toplamda ortalama yaş 32.2 yıl idi. Aynı taraf ulna ve klavikula boyları arasında anlamlı bir oran olduğu saptandı (p=0.001).  Aynı zamanda sağ ve sol klavikula boyları arasında anlamlı uzunluk farkı bulunduğu görüldü. Sol klavikula, erkeklerde 9.00 ± 2.16 mm ve kadınlarda 7.13 ± 2.03 mm sağ klavikuladan daha uzun idi (p=0.001). Ancak her iki grupta da sağ ve sol ulna boyları arasında anlamlı bir fark saptanmadı (0.84 ± 1.033 mm erkeklerde ve 0.52 ± 0.818 mm kadınlarda).

Sonuçlar: Hem kadın, hem de erkeklerde her iki tarafta klavikula ve ulna kemikleri arasında matematiksel olarak anlamlı bir oran var olduğu ortaya kondu. Ancak bu oran her iki cinsiyet için farklı idi. Biz bu çalışmanın sonucuna dayanarak, parçalı klavikula kırıklarının plak ve özellikle çivi ile cerrahi tedavisi sırasında, ortaya konan bu orantısal formüllerin uygun kemik boyunun hesaplanarak sağlanması için kullanılabileceğini düşünmekteyiz.

Anahtar Kelimeler

• Parçalı kırık,klavikula,ulna,boy oranı

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