Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
date of operation
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "date of operation" is correct and usable in written English.
It can be used in contexts where you need to specify the date on which a particular operation, event, or procedure took place. Example: "The date of operation for the new software installation was scheduled for March 15th."
✓ Grammatically correct
Science
Alternative expressions(20)
date of donation
date of ticket
date of publication
day of extraction
date of procedure
date of reservation
collection date
date of trial
date of composition
date of course
date of death
sampling date
date of cure
day of surgery
procedure date
date of detachment
date of data acquisition
months of extraction
date of presence
date of production
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
We extracted information about previous use of antibiotics, presence of a sinus tract, date of operation, operative side, and description of purulence in the operation notes.
Science
Treatment-related information collected included the date of operation, operative procedures undergone, whether pelvic and para-aortic lymph node dissection or both were carried out, and which preoperative and postoperative adjuvant therapies were administered, including chemotherapy and radiation therapy.
Science
The patients were checked for missing or incorrect information regarding civil registration number, operative side, date of operation, and indication.
Science
Operative data included date of operation, surgical technique (one-site or two-site phacotrabeculectomy), and the presence of any operative complications.
After review of the medical records for information on sinus tract, presence of purulence, and previous use of antibiotics, 3 primary THAs and 25 first-time revisions were excluded from the study due to misclassification of operative side, procedure code, or date of operation.
Science
The data gathered include information on patient identity, date of operation, indication for surgery, type of implant, method of fixation, duration of surgery, type of operating room ventilation, and the type of antibiotic prophylaxis used.
Science
The entries usually contain the patient's name, age, address, date of admission, and date of operation.
Academia
Since then, reports suggest the pipeline has been quietly shelved, and Northern Gateway has pushed back the estimated date of operation from 2018 to 2019 at the earliest.
News & Media
All intervals were calculated from the date of operation.
Science
Overall survival was defined as the time between date of operation and date of death.
Science
The exact date of operation during an admission is not recorded in the Hospital Discharge Register.
Science
Expert writing Tips
Best practice
When documenting medical records or research, consistently use "date of operation" to maintain clarity and avoid ambiguity.
Common error
Avoid using ambiguous date formats (e.g., 01/02/2025 which could be January 2nd or February 1st depending on the region). Always specify the month, day, and year clearly, or use a standardized format like YYYY-MM-DD.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "date of operation" functions primarily as a noun phrase that specifies a particular point in time. It is crucial for record-keeping, analysis, and communication in medical contexts, and is grammatically correct according to Ludwig AI.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
The phrase "date of operation" is a grammatically sound and very common term, primarily utilized within scientific and medical fields. As confirmed by Ludwig AI, it serves the critical function of specifying the precise timing of a surgical or medical procedure. Related phrases, such as "surgery date" or "operative date", offer similar meanings, though "date of operation" remains the most formal and comprehensive choice. Best practices dictate consistent usage and clear date formatting to avoid ambiguity, and its authoritative sources include Acta Orthopaedica, BMC Cancer, and the British Journal of Cancer.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
surgery date
Replaces "operation" with its synonym "surgery", maintaining a very similar meaning.
surgical date
Similar to 'surgery date', it substitutes "operation" with "surgical", keeping the meaning almost identical.
operative date
Uses the adjective "operative" instead of the noun "operation", offering a slightly more formal tone.
day of surgery
Focuses on the specific day the surgery took place.
date of procedure
Uses the more general term "procedure" instead of "operation".
procedure date
Broadens the term to include any medical procedure, not specifically surgery.
day of the procedure
Focuses on the specific day the medical procedure took place.
scheduled operation date
Specifies the date the operation is scheduled for, adding a prospective aspect.
operation commencement date
Replaces date with 'commencement date' emphasizing the beginning of the operation period.
operation timeline
Expands the scope to include the entire duration or key dates related to the operation process.
FAQs
How is "date of operation" used in medical contexts?
In medical settings, "date of operation" is used to precisely record when a surgical procedure was performed. This information is crucial for patient records, follow-up care, and research. The Ludwig examples show its frequent use in science, especially related to health.
What details should be included when documenting the "date of operation"?
When documenting the "date of operation", be precise. Include the full date (year, month, and day) to avoid confusion. Also, ensure the time of the operation is recorded if relevant for tracking postoperative outcomes or medication schedules.
Can I use "surgical date" interchangeably with "date of operation"?
While "surgical date" is often used as a synonym for "date of operation", the latter is slightly more formal and comprehensive. "Surgical date" specifically refers to surgical procedures, while "date of operation" can encompass a broader range of medical operations or interventions.
How does the "date of operation" affect survival analysis in medical research?
In survival analysis, the "date of operation" serves as a baseline or starting point for measuring survival time or disease-free survival. Follow-up periods are calculated from this date to track patient outcomes, as illustrated in the Ludwig examples.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested