Participants in the experimental group will undergo a virtual reality headset intervention. This intervention will be administered to patients in the clinic during the acute phase-the first 48 hours following total hip replacement surgery. The scales used in the study will be administered twice: once before and once after the intervention.

Participants in the control group will receive standard care. The intervention will be administered to patients who are in the clinic during the acute phase-the first 48 hours-following total hip replacement surgery. The scales used in the study will be administered twice: once before and once after the intervention.

The patient undergoing the virtual reality session will lie in a supine position, supported and comfortable, with the head elevated at an angle of 30˚-45˚. The content will feature nature sounds and soothing background music; three different segments will be programmed: a forest or beach landscape, an underwater scene, and an outdoor excursion. Each option consists of 30 minutes of footage. The patient will select their preferred footage from these options, and after the sound settings are adjusted to a level the patient finds comfortable and non-disturbing, the session will begin and last for 30 minutes. Following the session, data will be collected in a face-to-face setting.

The Visual Analog Scale (VAS) was used to measure pain intensity; it is a simple, unidimensional measure. It was developed by Price et al. in 1983 to assess perceived pain. Compared to the VAS scale, which is known to be more sensitive in the assessment and characterization of acute pain, "no pain" is rated as 0 points and "most severe pain" as 10 points. On this scale, an increase in score indicates an increase in pain. Pain is also categorized as mild (<3), moderate (3-6), and severe (>6).

The Spielberger State-Trait Anxiety Inventory was used to assess patients' anxiety levels. The original scale was developed in 1970 by Spielberger and his team and adapted to the Turkish language and culture by Öner and Le Compte. Scale items are answered on a four-point Likert-type scale. For the state anxiety scale, the response options are "not at all," "a little," "a lot," and "completely," while for the trait anxiety scale, they are "never," "sometimes," "most of the time," and "almost always." Higher scores on the scale indicate higher levels of anxiety, while lower scores indicate lower levels of anxiety. According to the score ranges established by Spielberger and colleagues, a score of 0-19 indicates no anxiety, 20-39 indicates mild anxiety, 40-59 indicates moderate anxiety, and 60-79 indicates severe anxiety.

The comfort levels of postoperative patients were assessed using the Perianesthesia Comfort Scale. The scale was developed by Kolcaba in 1990 and adapted into Turkish by Üstündağ and Aslan (2010). The Perianesthesia Comfort Scale (PCS) is a self-report assessment tool designed to measure individuals' comfort levels during the perianesthesia period. The scale consists of a total of 24 items and uses a six-point Likert-type scale. Participants respond to each item with scores ranging from "strongly disagree (1)" to "strongly agree (6)." The total score that can be obtained from the scale ranges from 24 to 144. The total score is divided by the number of items to calculate the mean score, which is expressed as a value between 1 and 6. A low mean score indicates a low level of comfort, while a high mean score indicates a high level of comfort.