**Core Concept**
Post-operative complications can arise from various factors including surgical technique, patient factors, and anesthesia. These complications can be broadly categorized into immediate (occurring within 24 hours) and late (occurring after 24 hours).

**Why the Correct Answer is Right**
The correct answer is the option that is not commonly associated with post-operative complications. Options A, B, and C are all potential post-operative complications. For example, **Option A: Respiratory failure** can occur due to factors such as atelectasis, pneumonia, or pulmonary embolism. **Option B: Myocardial infarction** can occur due to factors such as pre-existing cardiac disease, hypertension, or perioperative cardiac stress. **Option C: Deep vein thrombosis** can occur due to factors such as patient immobility, surgery duration, or pre-existing hypercoagulability.

**Why Each Wrong Option is Incorrect**
**Option A:** Respiratory failure is a common post-operative complication, especially in patients undergoing upper abdominal or thoracic surgery.
**Option B:** Myocardial infarction is a known risk in patients undergoing non-cardiac surgery, especially in those with pre-existing cardiac disease.
**Option C:** Deep vein thrombosis is a well-recognized post-operative complication, especially in patients undergoing major orthopedic or abdominal surgery.

**Clinical Pearl / High-Yield Fact**
Post-operative complications can be reduced by optimizing patient factors, such as smoking cessation and weight loss, and improving surgical technique, such as minimizing wound trauma and using regional anesthesia.

**Correct Answer: D.**