There are no official guidelines to assist in answering this question. I will search for relevant research papers instead.
From the Research
Torn Biceps Tendon Healing without Surgical Intervention
- The likelihood of a torn biceps tendon healing without surgical intervention is low, especially in athletes or individuals with complete ruptures 1, 2.
- Nonoperative management is rarely indicated and is typically reserved for individuals with partial ruptures that quickly regain strength and function 1.
- Studies have shown that operative treatment results in superior elbow and forearm strength and endurance, as well as superior patient-reported outcomes 2, 3.
- However, some case reports suggest that full recovery of strength and function is possible through rehabilitation without surgical repair 4.
- The success rate of nonoperative management for partial distal biceps tears is limited, with 55.7% of patients ultimately undergoing surgery 5.
Factors Influencing Healing without Surgery
- The extent of the tear, with larger tears (greater than 50%) being more likely to require surgery 5.
- The individual's occupation and activity level, with high-need patients being more likely to benefit from surgery 5.
- The effectiveness of nonoperative management, including physical therapy and rehabilitation, in regaining strength and function 4.
Outcomes of Nonoperative Management
- Some patients may experience full recovery of strength and function without surgical repair 4.
- However, nonoperative management may not be successful in all cases, with some patients ultimately requiring surgery 5.
- The outcomes of nonoperative management may be influenced by factors such as the extent of the tear and the individual's occupation and activity level 5.