ARTICULATED EXTERNAL FIXATION OF PILON FRACTURES - THE EFFECTS ON ANKLE JOINT KINEMATICS

被引：14

作者：

FITZPATRICK, DC

MARSH, JL

BROWN, TD

机构：

[1] Departments of Orthopaedic Surgery and Biomedical Engineering, The University of Iowa, Iowa City, IA

来源：

JOURNAL OF ORTHOPAEDIC TRAUMA | 1995年 / 9卷 / 01期

关键词：

EXTERNAL FIXATION; PILON FRACTURE; ANKLE KINEMATICS;

D O I：

10.1097/00005131-199502000-00012

中图分类号：

R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];

学科分类号：

摘要：

The effect of the Orthofix articulated ankle external fixator on ankle and subtalar joint kinematics and fracture fragment motion was investigated in fresh cadaver specimens using biplanar radiographic analysis. The kinematic testing was performed for the normal ankle (i.e., no fixation) and for three alternate fixator hinge orientations. The fixator applications simulated a horizontal ankle axis (the current clinically preferred orientation), an axis coincident with a previously defined approximate ankle axis, and an axis located using a mechanical axis finder. The horizontal fixator application significantly disturbed normal ankle kinematics. Aligning the fixator hinge with an approximate ankle axis caused significant distortion of motion about only two of six possible rotational axes. Aligning the fixator hinge with the (specimen-specific) ankle axis determined by the axis finder most closely matched the motion of the normal ankle. For pilon fractures simulated by a transverse osteotomy, there appeared to be no physiologically significant fracture fragment motions, regardless of fracture stability or fixator orientation.

引用

页码：76 / 82

页数：7

共 14 条

[1]

Allard P., Stokes I.A., Salathe E.P., An K.N., An: Modeling of the Foot and Ankle, pp. 432-468, (1989)

[2]

Barnett C.H., Napier J.R., The axis of rotation at the ankle joint in man. Its influence upon the form of the talus and mobility of the fibula, J Anat, 86, pp. 1-9, (1952)

[3]

Bonar S.K., Marsh J.L., Unilateral external fixation for severe pilon fractures, Foot Ankle, 14, pp. 57-64, (1993)

[4]

Brumbaugh R.B., An Analysis of Normal Wrist Kinematics [Thesis], (1980)

[5]

Fitzpatrick D.C., The Effect of an Articulated External Fixator on Ankle Joint Biomechanics [Thesis], (1993)

[6]

Hicks J.H., The mechanics of the foot. I. The joints, J Anat, 87, pp. 345-357, (1953)

[7]

Hollister A., Buford W.L., Myers L.M., Giurintano D.J., Novick A., The axis of rotation of the thumb carpometacarpal joint, J Orthop Res, 10, pp. 454-460, (1992)

[8]

Inman V.T., Joints of the Ankle, (1976)

[9]

Isman R.E., Inman V.T., Anthropometric studies of the human foot and ankle, Bull Pros Res, 10, pp. 97-129, (1969)

[10]

Karroholm J., Roentgen stereophotogrammetry: Review of orthopedic applications, Acta Orthop Scand, 60, pp. 491-503, (1989)

← 1 2 →