High-Yield Summary
· Pain generator: The long head of the biceps tendon is a common source of anterior shoulder pain, especially with rotator cuff disease.
· Associated pathology: Look for subscapularis tear, pulley lesion, SLAP lesion, cuff tear, instability, and groove disease.
· Medial subluxation: Strongly suggests upper-border subscapularis tear or pulley disruption.
· Diagnosis: Physical tests are not definitive; combine history, examination, imaging, and arthroscopic assessment.
· Treatment: Start nonoperatively for isolated tendinopathy; operate for persistent pain, instability, structural damage, or concomitant cuff repair.
· Tenotomy vs tenodesis: Both improve pain and function. Tenotomy is simple and fast; tenodesis reduces Popeye deformity and cramping.
Anatomy
· LHB originates from the supraglenoid tubercle and superior labrum.
· It courses intra-articularly, exits through the rotator interval, and enters the bicipital groove.
· The biceps reflection pulley stabilizes the LHB at the groove entrance.
Biceps Reflection Pulley Components
· Superior glenohumeral ligament
· Coracohumeral ligament
· Rotator interval tissue
· Upper border of the subscapularis
· Anterior fibers of supraspinatus
Clinical Relevance
· Pulley disruption allows abnormal LHB translation.
· Medial LHB instability suggests subscapularis/pulley pathology.
· Lateral LHB instability may be associated with supraspinatus and rotator cable lesions.
Pathology Spectrum
Category | Examples |
Inflammatory / degenerative | Tendinitis, tenosynovitis, tendinosis |
Structural tendon injury | Fraying, partial tear, split tear, complete rupture |
Instability | Subluxation, dislocation, pulley lesion |
Anchor / labral pathology | SLAP-biceps anchor lesion |
Mechanical entrapment | Hourglass biceps |
Hourglass Biceps
· Hypertrophy of the intra-articular LHB that prevents normal gliding through the bicipital groove.
· May cause pain, catching, or mechanical block even if the extra-articular groove portion appears normal.
Clinical Presentation
· Deep anterior shoulder pain
· Pain with lifting, pulling, or overhead activity
· Pain radiating down the anterior arm
· Clicking or mechanical symptoms
· Biceps cramping or fatigue
· Popeye deformity after rupture or tenotomy
Associated Clues
· Weakness/night pain: rotator cuff tear
· Painful internal rotation: subscapularis involvement
· Instability/clicking in younger patients: SLAP or capsulolabral pathology
Physical Examination
· Bicipital groove tenderness
· Speed test
· Yergason test
· Upper-cut test
· O’Brien active compression test
· Belly-press, bear-hug, and lift-off tests for subscapularis
Pearl: No single physical examination test reliably diagnoses LHB pathology. Interpret tests with imaging, associated lesions, and intraoperative findings. |
Imaging
Modality | Best For | Limitations / Notes |
Radiographs | Arthritis, calcific tendinitis, acromial morphology, proximal humeral migration | Often normal in isolated LHB disease |
Ultrasound | Dynamic subluxation/dislocation, tenosynovitis, groove fluid, cuff tears | Operator-dependent |
MRI / MRA | LHB degeneration, SLAP, pulley lesions, subscapularis and cuff tears | Subtle pulley lesions may be missed |
Arthroscopy | Direct assessment of intra-articular LHB, pulley, labrum, cuff | Diagnostic and therapeutic |
Nonoperative Treatment
· First-line for most isolated LHB tendinopathy cases.
· Activity modification, NSAIDs, physical therapy, scapular stabilization, rotator cuff strengthening, posterior capsule stretching.
· Ultrasound-guided biceps sheath injection may be diagnostic and therapeutic.
Indications for Surgery
· Persistent pain despite adequate conservative treatment
· Structural tendon damage or partial tear
· LHB instability, subluxation, or dislocation
· Pulley lesion
· Hourglass biceps or mechanical entrapment
· Concomitant rotator cuff repair with symptomatic or unstable LHB
· Symptomatic SLAP-biceps anchor pathology
Surgical Options
Feature | Tenotomy | Tenodesis |
Concept | Release LHB from superior labrum | Fix LHB to humerus/soft tissue |
Operative time | Shorter | Longer |
Cost / implant | Implant-free, lower cost | Usually requires implant |
Technical demand | Lower | Higher |
Popeye deformity | Higher risk | Lower risk |
Cramping pain | Higher risk | Lower risk |
Ideal patient | Older, low-demand, cosmetic concern low | Young, active, cosmetic concern, heavy labor |
Tenotomy
· Advantages: simple, fast, implant-free, cost-effective, useful in elderly or multi-procedure cases.
· Disadvantages: higher risk of Popeye deformity, cramping, fatigue discomfort, cosmetic dissatisfaction.
· Best candidates: older or low-demand patients, poor tendon quality, massive cuff tear cases, or patients prioritizing shorter surgery.
Tenodesis
· Concept: reattaches LHB to preserve length-tension relationship.
· Fixation options: suture anchor, interference screw, cortical button, soft-tissue or intracuff tenodesis.
· Advantages: lower Popeye deformity risk, less cosmetic dissatisfaction, may reduce cramping.
· Disadvantages: longer operative time, implant cost, possible persistent groove pain or fixation failure.
Tenodesis Locations
Location | Description | Pearl |
Suprapectoral | Fixation proximal to pectoralis major insertion | Arthroscopic or mini-open; may leave groove-related disease |
Subpectoral | Fixation distal to bicipital groove | Removes tendon from groove; useful for groove pain or extra-articular disease |
Intracuff | Tendon incorporated into rotator cuff repair construct | Common during arthroscopic cuff repair |
Evidence Summary
· Both tenotomy and tenodesis reliably improve pain and function.
· Meta-analyses are not fully consistent regarding small functional differences.
· Tenodesis consistently lowers the risk of Popeye deformity and may reduce cramping pain.
· Tenotomy consistently provides shorter operative time and lower cost.
· Functional superiority of tenodesis, when present, is usually modest and patient-dependent.
Practical Pearl: The most reproducible advantage of tenodesis is cosmetic and cramping-related, not a large universal functional superiority. |
Biceps Pulley Lesions
· Definition: disruption of the soft-tissue sling stabilizing the LHB at the rotator interval and groove entrance.
· Common associations: subscapularis tear, supraspinatus tear, rotator interval lesion, LHB subluxation/dislocation, SLAP lesion.
· Why it matters: untreated LHB instability can cause persistent anterior shoulder pain after cuff repair.
Pearl: In any upper-border subscapularis tear, actively look for LHB instability and pulley disruption. |
Treatment Algorithm
Scenario | Preferred Approach |
Isolated tendinopathy without instability | Nonoperative care first; tenotomy or tenodesis if persistent symptoms |
LHB instability / pulley lesion | Usually surgical; tenodesis in young/active patients, tenotomy in elderly/low-demand patients |
LHB pathology with rotator cuff tear | Treat symptomatic or unstable LHB during cuff repair |
Young overhead athlete with isolated type II SLAP | Selected SLAP repair may be considered |
Middle-aged patient or cuff disease with SLAP-biceps anchor pain | Biceps tenodesis often preferred |
Low-demand elderly patient | Tenotomy is often reasonable |
Complications
Tenotomy | Tenodesis |
Popeye deformity | Persistent anterior shoulder pain |
Exam Pearls
· LHB pathology is commonly associated with cuff disease.
· Medial biceps subluxation suggests subscapularis or pulley lesion.
· Speed and Yergason tests are not definitive.
· Ultrasound is useful for dynamic instability.
· MRI helps evaluate labrum, cuff, pulley, and biceps anchor.
· Arthroscopy is the most reliable assessment for intra-articular LHB and pulley pathology.
· Tenotomy is simple, fast, and effective.
· Tenodesis reduces Popeye deformity and cramping.
· Heavy laborers and young active patients usually favor tenodesis.
· Elderly low-demand patients usually tolerate tenotomy well.
· Persistent pain after cuff repair may be due to untreated biceps instability.
References
1. Hartland AW, Islam R, Teoh KH, et al. Clinical effectiveness of tenotomy versus tenodesis for long head of biceps pathology: a systematic review and meta-analysis. BMJ Open. 2022;12:e061954.
2. Zhang C, Yang G, Li T, et al. Biceps tenodesis better improves shoulder function compared with tenotomy for long head of the biceps tendon lesions: a meta-analysis of randomised controlled trials. J Clin Med. 2023;12:1754.
3. Lalehzarian SP, et al. Management of proximal biceps tendon pathology. World J Orthop. 2022.
4. Walch G, et al. Subluxations and dislocations of the long head of the biceps tendon. J Shoulder Elbow Surg. 1998.
5. Boileau P, et al. Entrapment of the long head of the biceps tendon: the hourglass biceps. J Shoulder Elbow Surg. 2004.
6. Cho NS, et al. Funnel tenotomy versus intracuff tenodesis. Am J Sports Med. 2014.
7. Garcia JE, et al. Study of biceps fatigue in male heavy workers. Muscles Ligaments Tendons J. 2020.