knee replacement surgery - Nursing Case Study

Pathophysiology

• Primary mechanism: Osteoarthritis often causes the cartilage in the knee joint to wear away, leading to bone-on-bone contact, pain, and loss of function. Knee replacement surgery involves replacing the damaged joint surfaces with artificial components to restore movement and relieve pain.

• Secondary mechanism: Inflammatory processes contribute to joint damage by releasing enzymes that further degrade cartilage. Surgery removes the damaged tissue, reducing inflammation and preventing further joint destruction.

• Key complication: Post-surgical infection is a concern, as it can lead to implant failure. Preventive measures include sterile techniques during surgery and postoperative antibiotics to minimize infection risk.

Patient Profile

Demographics:

67-year-old female, retired teacher

History:

• Key past medical history: Osteoarthritis in the right knee, Hypertension

• Current medications: Lisinopril 10 mg daily, Acetaminophen 500 mg as needed

• Allergies: Penicillin

Current Presentation:

• Chief complaint: Chronic knee pain worsening over the past year

• Key symptoms: Pain and stiffness in the right knee, limited range of motion

• Vital signs: Blood pressure 130/85 mmHg, Heart rate 72 bpm, Respiratory rate 16 breaths per minute, Temperature 98.6°F

Section 1

Initial assessment findings:

Following the knee replacement surgery, the patient was transferred to the postoperative care unit for monitoring and recovery. Upon initial assessment, her vital signs were stable, with a blood pressure of 125/80 mmHg, heart rate of 70 bpm, respiratory rate of 18 breaths per minute, and temperature of 98.4°F. She reported mild pain at the surgical site, rating it as a 4 on a scale of 0 to 10, which was manageable with the administration of acetaminophen as per the postoperative pain management plan.

The surgical site was clean and dry, with minimal swelling noted around the incision area. The dressing was intact, showing no signs of bleeding or discharge. The patient was alert and oriented, and her neurovascular assessment of the right leg was normal, with intact sensation and adequate capillary refill. She was encouraged to perform deep breathing exercises and ankle pumps to promote circulation and prevent complications such as deep vein thrombosis. The patient expressed understanding of these activities and was motivated to participate in her recovery process. This stable postoperative status sets the stage for initiating early mobilization and physical therapy to enhance her functional recovery.

Section 2

As the patient transitioned into the early stages of recovery, she was closely monitored for any changes in her condition. On the morning of the second postoperative day, her vital signs remained stable, with a blood pressure of 122/78 mmHg, heart rate of 72 bpm, respiratory rate of 16 breaths per minute, and a temperature of 98.6°F. However, the patient reported a slight increase in pain at the surgical site, rating it as a 5 out of 10. In response, the nursing team adjusted her pain management plan to include a low dose of tramadol in addition to acetaminophen, which effectively reduced her discomfort.

During a routine neurovascular assessment, the nurse noted a minor complication: the patient experienced mild tingling in her right foot. Capillary refill time was slightly prolonged at the toes but remained within acceptable limits. Sensation was intact, and the right leg was warm to the touch, with no signs of color changes or increased swelling. The patient was reassured, and immediate interventions included elevating the affected leg and applying ice packs to help reduce swelling. She was also encouraged to continue her deep breathing exercises and ankle pumps.

The healthcare team decided to keep the patient under observation for any further developments, while continuing to encourage early mobilization with the assistance of a physical therapist. This approach aimed to enhance circulation, alleviate the tingling sensation, and prevent further complications such as deep vein thrombosis. The patient was cooperative and expressed determination to follow the recommended interventions, understanding that these measures were crucial for a smooth recovery. As she progressed, the focus shifted to evaluating her response to these interventions and planning the next steps in her rehabilitation journey.

Section 3

As the day progressed, the healthcare team closely monitored the patient's response to the interventions. By the afternoon, it was observed that the tingling sensation in the patient's right foot had diminished significantly, which was an encouraging sign that the initial measures were effective. The patient reported that the pain at the surgical site had reduced to a more manageable level of 3 out of 10, allowing her to participate more actively in the recommended exercises. Vital signs remained stable, with a blood pressure of 120/76 mmHg, heart rate of 74 bpm, respiratory rate of 16 breaths per minute, and a temperature of 98.4°F, indicating a stable postoperative course.

A follow-up neurovascular assessment was conducted, revealing that capillary refill time at the toes had returned to normal limits, and there was no further tingling or numbness. The patient's right leg continued to be warm to the touch, with no signs of additional swelling or color changes. Encouraged by these findings, the nursing team collaborated with the physical therapist to advance the patient's mobility plan, incorporating assisted ambulation with a walker. This progression aimed to further enhance blood flow and promote independence in movement.

Throughout the exercises, the patient remained motivated and showed a positive attitude towards her rehabilitation journey. She demonstrated an improved range of motion and strength in her right leg, meeting the expected milestones for this stage of recovery. The healthcare team planned to reassess her progress in the following days and continue to tailor her care plan to ensure a smooth transition towards discharge. The focus would remain on maintaining her stability, preventing potential complications, and empowering her with knowledge and skills for self-care at home.

Section 4

On the following morning, the nursing team conducted a routine assessment, which included a comprehensive evaluation of the surgical site, the patient's overall physical condition, and her vital signs. The incision area appeared clean and dry, with minimal redness and no signs of infection. The patient continued to report manageable pain, maintaining a level of 3 out of 10, which was effectively controlled with oral analgesics. Her vital signs remained stable, with a blood pressure of 118/78 mmHg, heart rate of 72 bpm, respiratory rate of 18 breaths per minute, and a temperature of 98.2°F. These findings indicated that the patient's postoperative recovery was on track with expected outcomes.

Later in the day, the patient expressed a slight increase in discomfort in her right knee, specifically during the initial phases of ambulation with the walker. Upon further assessment, the nursing staff noted a minor increase in localized swelling around the knee joint, although there were no signs of erythema or discharge. The clinical team decided to implement additional measures to address this minor complication, which included elevating the leg intermittently, applying cold compresses to reduce the swelling, and adjusting her pain management plan to ensure comfort during physical activities. These interventions aimed to alleviate the discomfort and prevent any potential setbacks in her mobility progress.

The patient responded well to these interventions, reporting a noticeable decrease in swelling and improved comfort during the subsequent physical therapy session. Her motivation and optimism remained high, and she expressed a strong commitment to continuing her rehabilitation exercises. The healthcare team planned to monitor her closely over the next 24 hours to ensure that the swelling subsided completely and to evaluate the effectiveness of the revised care plan. This proactive approach aimed to sustain the patient's steady recovery and facilitate her transition to home care, equipping her with the necessary tools and knowledge for successful self-management post-discharge.

Section 5

As the nursing team continued to monitor the patient's progress, they noted a further improvement in her condition. During the next routine assessment, her vital signs remained stable, with a blood pressure of 116/76 mmHg, heart rate of 70 bpm, respiratory rate of 18 breaths per minute, and a temperature of 98.0°F. The incision site still appeared clean and dry, with decreased redness, and there was a noticeable reduction in the swelling around the knee joint. The patient reported her pain level had decreased to a 2 out of 10, especially after implementing the cold compresses and elevation, which were continued as part of her care plan.

Encouraged by the positive response to the interventions, the healthcare team decided to gradually increase the intensity of her physical therapy exercises under careful supervision. The patient was able to ambulate more comfortably with the walker and demonstrated improved range of motion in her knee. She was educated on the importance of adhering to the exercise regimen and was encouraged to verbalize any discomfort or concerns promptly. The patient's positive attitude and commitment to her recovery were noted as significant contributors to her progress.

To ensure continued success and prevent any new complications, the team planned to conduct a comprehensive evaluation of her progress the following day. This would include reassessing her physical condition, reviewing her pain management plan, and providing additional education on home care strategies. The seamless collaboration between the patient and healthcare team aimed to set the stage for a successful discharge, with the ultimate goal of achieving full mobility and independence in her daily activities.