当前位置： SCI文献检索 > JOURNAL OF SHOULDER AND ELBOW SURGERY期刊下所有文献 > Morphological characteristics of fracture of anteromedial facet of coronoid in posteromedial rotatory instability of elbow: a three-dimensional CT remodeling study.

Morphological characteristics of fracture of anteromedial facet of coronoid in posteromedial rotatory instability of elbow: a three-dimensional CT remodeling study.

Abstract：

BACKGROUND:Fractures of the anteromedial facet of the coronoid in posteromedial rotatory instability of the elbow are classified into 3 subtypes based on their location. The purpose of this study was to analyze the fracture morphology of anteromedial facet fractures in their 3 subtypes (anteromedial rim, anteromedial rim + tip, and anteromedial rim + sublime tubercle [±tip]). METHODS:Three-dimensional computed tomography remodeling was used to evaluate anteromedial facet fractures in a consecutive series of 40 patients, all of whom were affected by posteromedial rotatory instability of the elbow. Characteristics of the fractures, including the number of fragments, size of fragments, plane of the fracture line, and involvement of the sublime tubercle and radial notch, were measured for each subtype of the anteromedial facet fractures. RESULTS:Each subtype had a typical fracture pattern and distinct size. The fracture subtype 1 showed a single-fragment fracture, subtype 2 showed either a single- or dual-fragment fracture, and subtype 3 showed either a dual- or triple-fragment fracture. The angle between the fracture line and the coronal plane was greatest in subtype 3 fractures. The surface area of the fragment was largest in subtype 3 fractures. The percentages of articular involvement of the sublime tubercle were 0% in subtype 1, 47% in subtype 2, and 79% in subtype 3. The percentages of articular involvement of the radial notch were 0% in subtype 1, 7% in subtype 2, and 8% in subtype 3. CONCLUSION:Analysis with quantitative 3-dimensional computed tomography showed the characteristic morphology of each subtype of anteromedial facet fracture. Subtype 1 comprised 1 fragment with the smallest fragment size. Subtype 2 was a single- or dual-fragment fracture, the size of which should be considered in the treatment plan. Subtype 3 was a large fragment comprising the sublime tubercle. Our findings are significant because they highlight unique fracture morphology that may help surgeons to distinguish one fracture subtype from another in clinical practice.

journal_name

J Shoulder Elbow Surg

journal_title

Journal of shoulder and elbow surgery

authors

Lee HD,Jung YJ,Oh JK,Moon JG

doi

10.1016/j.jse.2020.09.040

subject

Has Abstract

pub_date

2020-11-03 00:00:00

eissn

1058-2746

issn

1532-6500

pii

S1058-2746(20)30836-3

pub_type

杂志文章

在线工具

Morphological characteristics of fracture of anteromedial facet of coronoid in posteromedial rotatory instability of elbow: a three-dimensional CT remodeling study.