0
We're unable to sign you in at this time. Please try again in a few minutes.
Retry
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
Retry
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
ARTICLE |

ADJUSTABLE FIXATION CALIPERS WITH IMMOBILIZED AND ADJUSTABLE PRONGS FOR SKELETON TRACTION

Irwin E. Siris, M.D.
JAMA. 1922;79(24):1999. doi:10.1001/jama.1922.26420240004013d.
Text Size: A A A
Published online

ABSTRACT

The adjustable fixation calipers with immobilized prongs, illustrated at A, are made of hand forged steel. The lower arms possess a full curve, being readily adjustable to complete closure. The points are very sharp and taper for 1 inch (2.5 cm.) from the shoulder. A thumb set screw is attached to the center of one handle and passes through an opening in a horizontal cross-bar. The grasping portion of the thumb set screw is 1 inch wide and one-half inch (1.3 cm.) long, and is peened on its under surface to prevent its becoming detached and lost. The cross-bar, one-half inch wide, is riveted to the center of the opposite handle and is fenestrated two fifths of its length for the opening and closing of the calipers. For one-half inch on each side of the thumb set screw, the handle is serrated, to facilitate closure. In the application of the

Topics

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

First Page Preview

View Large
First page PDF preview

Figures

Tables

References

Letters

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

Related Content

Customize your page view by dragging & repositioning the boxes below.

Jobs
brightcove.createExperiences();