The goal of this clinical trial is to compare the effects of gabapentin in patients undergoing rotator cuff repair surgery. The main question it aims to answer is whether gabapentin can improve postoperative pain and sleep quality. Participants in this study will be randomized to either take gabapentin after surgery or a placebo after surgery.

Perioperative gabapentin use has been established in prior literature to decrease postoperative opioid use; however, all of these studies have evaluated gabapentin given by an anesthesia team in the immediate pre- or intraoperative period. No known literature exists regarding scheduled post-operative oral gabapentin use in regards to pain control and opioid use. Sleep quality still tends to be a frequent concern associated with rotator cuff injury and shoulder surgery in general. The added known benefit of somnolence or drowsiness, in addition to aid in sleep, with use of gabapentin may also contribute to improved sleep quality following rotator cuff repair.

Inclusion Criteria:

• diagnosed traumatic or degenerative rotator cuff tear undergoing primary arthroscopic repair
• between the ages of 18 and 65 years old

Exclusion Criteria:

• chronic pre-operative narcotic pain medication use
• undergoing superior capsular reconstruction / balloon interposition etc
• < 18 y/o or > 65 y/o
• bilateral rotator cuff tear
• currently taking prescribed sleep-aid medications
• history of fibromyalgia or chronic pain syndrome
• pain management patient
• narcolepsy diagnosis
• diagnosis of cervical radiculopathy
• reported non-shoulder pain interfering with sleep