Effects of different body positions and traction weights on hip bursa pressure after femoral neck fracture

doi:10.3969/j.issn.2095-4344.1898

Abstract

Abstract:

BACKGROUND: In the cases of femoral neck fracture, the surgical reduction and fixation of femoral neck fracture have been well achieved, but there are still many patients with femoral head necrosis, which may be related to the influence of hip bursa pressure on femoral head blood supply.
OBJECTIVE: To investigate the effect of different treatment methods on internal pressure of hip joint capsule after femoral neck fracture.
METHODS: From January 2013 to December 2017, 120 cases diagnosed as simple femoral neck fracture and Garden type I-IV were collected in the Department of Orthopedics, the First People’s Hospital of Chengdu Shuangliu District. The intrathecal pressure of hip joint was measured in different positions of lower limbs (neutral position, internal rotation 30°, external rotation 30°, external rotation 50°, external extension 30°, and neutral position traction of 3-6 kg). This study was approved by the Medical Ethics Committee, the First People’s Hospital of Chengdu Shuangliu District on January 11, 2013.
RESULTS AND CONCLUSION: In different positions of affected limb, the intracapsular pressure of hip joint was the smallest when the external rotation was 30°, and the maximum when the internal rotation was 30°. Among the different types of femoral neck fractures, the internal pressure of hip bursa of Garden type III and IV was significantly higher than that of Garden type I-II. With the increase of traction weight, the pressure in hip capsule increased gradually. It is suggested that placing the affected limb in external rotation of 30° without traction after femoral neck fracture can significantly reduce the internal pressure of hip joint capsule.

Key words: femoral neck fracture, hip joint, capsule inner pressure, traction, position, femoral head necrosis, joint capsule, femoral head ischemia

CLC Number:

R493|R683.4|R323.45

Liu Dahai, Li Haibo, Gou Yongsheng, Li Liang. Effects of different body positions and traction weights on hip bursa pressure after femoral neck fracture[J]. Chinese Journal of Tissue Engineering Research, 2019, 23(36): 5846-5849.

Figures/Tables 2

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