Effect of smoking and smoking cessation on the outcome of orthopaedic and hand surgical operations

ISRCTN ISRCTN16961081
DOI https://doi.org/10.1186/ISRCTN16961081
Secondary identifying numbers D938/02.05.01.00.03/2018
Submission date
06/09/2021
Registration date
08/09/2021
Last edited
15/01/2025
Recruitment status
No longer recruiting
Overall study status
Ongoing
Condition category
Surgery
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Smoking has many adverse effects on surgical patients. After surgical operations, smokers have more complications than nonsmokers. Some complications, especially deep infections are difficult and costly to treat. Fortunately, these detrimental effects and complications caused by smoking can be decreased by smoking cessation. Orthopaedic and hand surgical patients are invited in the research aiming to study the effect of smoking and smoking cessation on the incidence of complications. Further aims of the study are to determine the effect and feasibility of smoking cessation intervention on reducing smoking, and factors predicting success in smoking cessation, and to determine which other factors, in addition to smoking, explain the incidence of complications.

Who can participate?
Orthopaedic and hand surgical patients visiting the orthopaedic or hand surgical outpatient department and who are put on the waiting list for elective orthopaedic or hand surgical operation in Päijät-Häme Central Hospital, Lahti, Finland can participate in the study.

What does the study involve?
Study patients fill in a self-reported questionnaire. Additional and clarifying information such as diagnoses of chronic diseases and prescribed medication are collected from medical records of study patients. Smokers receive information about the benefits of smoking cessation and are encouraged to quit. Medication or nicotine replacement therapy is prescribed. Laboratory tests are taken two weeks before and two weeks after surgery. Follow-up phone calls are made at 3, 6, and 12 months after surgery. The primary outcome is any complication of the operation, defined as a prolonged stay in hospital or any additional visit to or measure taken by a health service during the 12 months after surgery. Data on complications are mainly obtained from personal health records and from the information received at the follow-up phone calls, and the rest of data will be collected from the register of healthcare-associated infections. Secondary outcomes are the number and types of complications. Associations of smoking status and other effective factors with complications will be analysed using appropriate statistical methods.

What are the possible benefits and risks of participating?
The patients can get the results of the laboratory tests taken for this study, if they ask. Smoking patients are supported to stop smoking and if succeeded, their outcome of the operation could be better. All patients taking part in the complete study, are told the results and conclusions after completion of the study. Participants fill in a self-reported questionnaire collecting detailed background information on chronic diseases, medication, socio-economic status, physical activity, present and past smoking, and use of alcohol. Laboratory tests are taken 2 weeks before and after the operation. Patients are called at 3, 6, and 12 months after surgery and asked about possible problems or complications. There are no other disadvantages caused by this study for the patients.

Where is the study run from?
Päijät-Häme Central Hospital, Lahti, Finland

When is the study starting and how long is it expected to run for?
November 2014 to December 2025

Who is funding the study?
The government of Finland (State Research Funding), the Foundation of the Finnish Anti-Tuberculosis Association, Doctors Against Tobacco Network in Finland, Finnish Lung Health Association (FILHA Ry), Erkki Poikonen Foundation, and Päijät-Häme Doctors’ Association.

Who is the main contact?
Antti Kyrö, M.D., PhD, antti.kyro@fimnet.fi

Contact information

Dr Antti Kyrö
Public, Scientific

Päijät-Häme Central Hospital
Keskussairaalankatu 7
Lahti
15850
Finland

ORCiD logoORCID ID 0000-0002-1589-7741
Phone +358 (0)407188268
Email antti.kyro@fimnet.fi
Dr Kalle Kainiemi
Public, Scientific

Päijät-Häme Central Hospital
Keskussairaalankatu 7
Lahti
15850
Finland

Phone +358 (0)44 440 6258
Email kalle.kainiemi@phhyky.fi

Study information

Study designSingle-centre interventional study
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Hospital
Study typePrevention
Participant information sheet Not available in web format, please use contact details to request a participant information sheet.
Scientific titleThe effect on complications and feasibility of smoking cessation interventions performed on orthopaedic and hand surgical patients before operation
Study objectives1. Smoking patients have more complications compared with non-smoking patients
2. Patients continuing smoking despite smoking cessation intervention have more complications than initially smoking patients who are stopping smoking because of the intervention
3. Further aims of the study are to clear the feasibility of this kind of preoperative smoking cessation intervention and its effect on reducing smoking and to clear which factors predict success in smoking cessation.
4. An additional aim of the study is to compare the incidence of different types of complications in the whole study population and in different subgroups of orthopaedic and hand surgical patients who are smokers, non-smokers and patients who stop smoking during the preoperative intervention.
5. A further aim of the study is to determine which other factors in addition to smoking, such as chronic diseases and medications, explain the incidence of complications.
Ethics approval(s)Approved 22/09/2015, Regional Ethical Committee of Tampere University Hospital (Tays Expert Responsibility Area Ethics Committee, PL 2000, 33521 Tampere, Finland; +358331166910; kirsi.kohonen@pshp.fi), ref: R 15129
Health condition(s) or problem(s) studiedComplications after orthopaedic and hand surgery of non-smoking patients and of patients stopping smoking because of intervention and of patients continuing smoking in spite of intervention
InterventionSmokers are given verbal and written information about health and economic benefits of smoking cessation, and encouraged to quit smoking. The Fagerström Test for Nicotine Dependence is conducted to estimate the level of nicotine dependence of smokers. If a smoker has moderate nicotine addiction, nicotine replacement therapy is recommended. Prescription medication to aid smoking cessation is considered if a participant has strong nicotine dependence.

The smoking cessation intervention is given in the outpatient department, by the surgeon or the nurse, or by both. In discussions with smokers, the aim is to share information, motivate, give social support to quit smoking and in all help the patient to stop smoking. The intervention is performed during an outpatient appointment when the patient is registered on the waiting list and also during the preoperative visit. After surgery, when the stitches are removed, Hb-CO and U-Cot tests are repeated to ensure participants’ smoking status and to verify successful smoking cessation.

Participants are followed up to 12 months after surgery. Participants receive a phone call or letter at 3, 6, and 12 months after surgery, asking if any problems or complications have occurred.
Intervention typeBehavioural
Primary outcome measureAny complication occurring within 12 months after surgery. Complications are recorded when the study patient is leaving the hospital, when the stitches are removed and at follow-up phone calls at 3, 6 and 12 months after surgery.
Secondary outcome measures1. The number and types of complications (for example rapidly occurring complications, repeat surgery, and infections, stratified by types of surgery) are considered as secondary outcomes. They are recorded when the study patient is leaving the hospital, when the stitches are removed and at follow-up phone calls at 3, 6 and 12 months after surgery.
2. Successful smoking cessation is a feasibility outcome, and it is defined and recorded on ground of the announcement of the patient at the preoperative visit and on grounds of the laboratory tests taken at the preoperative visit and when the stitches are removed and on ground of the announcement of the patient at follow-up phone calls at 3, 6 and 12 months after surgery.
Overall study start date17/11/2014
Completion date31/12/2025

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants1000
Total final enrolment550
Key inclusion criteriaPatients of at least 18 years of age visiting the orthopaedic or hand surgical outpatient department and who are on the waiting list for elective orthopaedic or hand surgery so that the planned surgery is directed at the bone in Päijät-Häme Central Hospital, Lahti, Finland.
Key exclusion criteriaPatients under 18 years of age, patients with an acute fracture, and patients awaiting other types of surgery
Date of first enrolment27/10/2015
Date of final enrolment30/04/2018

Locations

Countries of recruitment

  • Finland

Study participating centre

Päijät-Häme Central Hospital
Päijät-Häme Central Hospital
Keskussairaalankatu 7
Lahti
15850
Finland

Sponsor information

Tampere University Hospital
Hospital/treatment centre

Teiskontie 35
Tampere
33520
Finland

Phone +358 3311611
Email toimikunta.eettinen@pirha.fi
Website http://www.pshp.fi
ROR logo "ROR" https://ror.org/02hvt5f17
Päijät-Hämeen Keskussairaala
Hospital/treatment centre

Keskussairaalankatu 7
Lahti
15850
Finland

Phone +358 381911
Email tuomo.nieminen@paijatha.fi
Website http://www.phhyky.fi
ROR logo "ROR" https://ror.org/02v92t976

Funders

Funder type

Government

The Government of Finland (State Research Funding)

No information available

The Foundation of the Finnish Anti-Tuberculosis Association

No information available

Doctors Against Tobacco Network in Finland

No information available

Filha
Private sector organisation / Associations and societies (private and public)
Alternative name(s)
Finnish Anti-Tuberculosis Association, Finnish Lung Health Association
Location
Finland
Erkki Poikonen Foundation

No information available

Päijät-Häme Doctors’ Association

No information available

Results and Publications

Intention to publish date31/12/2026
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planResults of our study are planned to be published in three or four publications each a in high-impact peer-reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the current study are not expected to be made available because participants have not provided consent to make the datasets available and because it is possible that participants could be identifiable.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article 29/08/2022 12/12/2022 Yes No

Editorial Notes

15/01/2025: The following changes were made to the study record:
1. The overall study end date was changed from 31/12/2024 to 31/12/2025.
2. The intention to publish date was changed from 31/12/2025 to 31/12/2026.
3. Contact details updated.
18/12/2023: The following changes were made to the study record:
1. The overall study end date was changed from 31/12/2023 to 31/12/2024.
2. The intention to publish date was changed from 31/12/2024 to 31/12/2025.
3. Contact details updated.
12/12/2022: The overall trial end date has been changed from 31/12/2022 to 31/12/2023. Publication reference added.
30/12/2021: The following changes have been made:
1. The IPD sharing statement has been added.
2. The overall trial end date has been changed from 31/12/2021 to 31/12/2022 and the plain English summary updated accordingly.
3. The intention to publish date has been changed from 01/12/2022 to 31/12/2024.
07/09/2021: Trial's existence confirmed by Regional Ethical Committee of Tampere University Hospital