Related Experiment Video
Updated: Feb 16, 2026

Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor
Published on: June 16, 2021
Variability in Resident Operative Hand Experience by Specialty.
Jason Silvestre1, Ines C Lin1, L Scott Levin1
11 University of Pennsylvania, Philadelphia, USA.
Orthopedic surgery residents perform more hand surgery cases than general surgery residents. Significant variation in hand surgery training exists within orthopedic surgery programs, highlighting potential for general surgeons to fill demand.
Area of Science:
- Surgical training and education
- Orthopedic surgery
- General surgery
Background:
- Standardization of hand surgery training in the US is a growing concern.
- Variability in operative hand experience among surgical residents requires analysis.
Purpose of the Study:
- To analyze and compare the variability in operative hand experience between orthopedic and general surgery residents.
- To identify potential gaps and opportunities in current hand surgery training models.
Main Methods:
- Utilized American Council of Graduate Medical Education case logs from 2006-2015 for orthopedic and general surgery residents.
- Compared hand surgery case volumes between specialties using parametric tests.
- Assessed intraspecialty variation in orthopedic surgery for various hand procedure categories.
Main Results:
- Analyzed case logs for 9,605 general surgery and 5,911 orthopedic surgery residents.
- Orthopedic surgery residents performed significantly more hand surgery cases than general surgery residents (P < .001).
- General surgery residents had minimal hand experience, with no reported cases in soft tissue repairs, vascular repairs, or replants; significant intraspecialty variation was observed in orthopedic surgery.
Conclusions:
- General surgeons may be an underutilized resource to address the demand for hand surgeon specialists.
- Further research is necessary to establish acceptable training variability levels in hand surgery.
Related Concept Videos
Hand hygiene
Hand washing...
Variability: Analysis
The range is a simple measure of variability, indicating the difference between the highest and...
Random Variables
Uppercase letters such as X or Y denote a random variable. Lowercase letters like x or y denote the value of a random variable. If X is a random variable, then X is written in words, and x is given as a number.
For example, let X = the...
Graphs of Equations in Two Variables
Variables Affecting Phosphorescence and Fluorescence
Noncompartmental Analysis: Mean Residence Time
After the administration of a drug through intravenous bolus injection, the drug molecules are distributed throughout the body and remain there for varying periods. The MRT represents the average time these drug molecules stay in the...

