It has been hypothesized that because music has the ability to motivate, promote relaxation, alleviate pain and anxiety levels, to distract, and facilitate positive emotional states; thus it will enable healing by reducing anxiety levels which are associated with expected pain, hence patients are more unperturbed. In addition, several studies in the past have also identified that music listening can reduce the need for analgesics before surgery and after surgery to alleviate pain, reduce the period of post-operative pain and aid in the recovery period. While most studies which had administered music listening in the post-anaesthesia care unit (PACU), had found significant findings compared to patients that did not listen to music; there are few others which found otherwise.

Over decades, time and again, researchers have tried to understand how non-pharmacological interventions have been utilized in a spectrum of rehabilitation settings in populations to stimulate convalesces. This is because non-pharmacological interventions have been recognised as valuable, simple, safe, and inexpensive adjuvants to pharmacological approaches in pain management and therefore is valuable during post-operative rehabilitation especially.

This research is necessary because it hopes to address the gap of knowledge concerning the effects of music in post-operative pain, anxiety objectively in a specific population, and during an explicit time frame in a public hospital setting in Malaysia and whether by listening to music, the patients will require lesser amount of opioids analgesics.

The purpose of this study is to examine the effects of music on pain and anxiety during post-operative period in patients with closed shaft femur fracture at University of Malaya Medical Centre.

The administration of music as an adjuvant to medicine during the recovery after surgery especially should be further explored by examining the physiological parameters of what takes place in the human body when pain and anxiety are present.

Permision to conduct this study have been granted by the National Medical Research Registry of the Ministry of Health of Malaysia, the Medical Research Ethics Committee from Universiti Putra Malaysia as well as University of Malaya.

During the intervention, the standard course of treatment by the attending physician will not be interrupted. The patients have the liberty to drop out from the study at any point of time without any repercussion.

The Standard Operating Procedure for all information obtained in this study will be kept and handled in a confidential manner, and destroyed thereafter analysis in accordance with applicable laws and regulations by the Ethics Committee of Universiti Putra Malaysia. When publishing or presenting the study results, the identity of the patients will not be revealed. Only individuals involved in this study such as the researchers, attending physicians, qualified monitors and auditors, Universiti Putra Malaysia or its affiliates and governmental or regulatory authorities can access the data from this study.

The sample size assessment to specify the number of participants was necessary to demonstrate an effect.

Data collected will be coded and transferred into the SPSS (Version 25.0) for analyses. Appropriate tests will be selected based on whether the data is normally distributed or not. P-value will be set to 0.05 to indicate level of significance with confidence interval of 95%. Depending on the distribution of the data, the appropriate statistical analysis will be determined to compare pre- and post-test results. Descriptive statistical analysis will be performed on all study variable at each time point. Spearman correlation coefficient will be used to determine the correlation of the main study outcomes, which are pain and anxiety. Inferential statistical analysis such as t-test and Chi-square will be used to determine the existence of significance differences in demography of the patients. Paired t-test will be used to differentiate the results between the pre- and post-test for the pain and anxiety scores. A normality test, Kolmogorov-Smirnov test, will be performed to look at the distribution of the data. For comparison between the experimental and control group, the Mann-Whitney U and one-way analysis of variance (ANOVA) tests will be performed to using the median and mean scores from both groups and as well the dosage of analgesia prescribed to both groups.

Missing information will be recorded but not included in the data analysis. Data collected, processed and churned for results and reported by the researcher will be closely monitored by a certified medical statistician who has been appointed to advice the research team. The supervisory committee will retain all rights to advise on the development of the research.

Inclusion Criteria:

• Consent to having the surgery and general anaesthesia
• Free from cognitive impairment
• Free from non-communicable diseases
• Mentally stable
• No appreciable deficits in vision and hearing
• American Society of Anaesthesiology (ASA) physical status classification of 1, 2, or 3
• Able to communicate either in English or Bahasa Malaysia
• Admitted to the Orthopaedic ward post-operatively
• Alert and cognizant to complete the pain and anxiety scores

Exclusion Criteria:

• Patient refusal for surgery and anaesthesia
• Patients anticipated to have difficult airway and planned for higher level airway management such as awake fibreoptic intubation, tracheostomy under local anaesthetic.
• Patients who are cognitively impaired
• Women under hormonal treatment
• Diagnosed with auto immune disease
• Deaf and vision impaired
• Current use of anti-psychotic medication
• Haemodynamically not stable

To ensure non-bias during the randomization, both the researcher and the patient will be masked and this procedure will be carried out by a trained research assistant.