Complete mandatory fasting for at least 8 hours, preoperative anesthesia clearance, baseline blood work, EKG, shoulder MRI review, antibiotic prophylaxis within 60 minutes of incision, and informed surgical consent.
Patient to wear shoulder immobilizer for 4-6 weeks. Pain management via scheduled analgesics, wound care monitoring, gradual physical therapy initiation starting with passive range of motion, and discharge upon meeting mobility and pain control benchmarks.
Comprehensive Clinical Guide: Arthroscopic Labral Repair (Bankart and SLAP)
1. Introduction and Overview
Arthroscopic labral repair represents the gold standard in modern orthopedic sports medicine for addressing glenohumeral instability and superior labral pathology. The glenoid labrum—a fibrocartilaginous ring that deepens the glenoid fossa—serves as the critical attachment site for the joint capsule and the long head of the biceps tendon. When this structure is compromised, patients often experience chronic instability, pain, mechanical locking, or a sensation of the shoulder "giving way."
This guide explores the two most common labral pathologies: the Bankart lesion (anteroinferior instability) and the SLAP lesion (Superior Labrum Anterior to Posterior). Through minimally invasive arthroscopic techniques, surgeons can restore the anatomical integrity of the shoulder, allowing for the restoration of kinetic chain function and a return to high-level athletic or occupational activity.
2. Technical Specifications and Mechanisms
The Anatomy of Instability
The glenoid labrum acts as a "chock block" for the humeral head. Damage to this tissue disrupts the negative intra-articular pressure and the static stabilizers of the shoulder.
- Bankart Lesion: A detachment of the anterior-inferior labrum from the glenoid rim, typically resulting from an anterior shoulder dislocation.
- SLAP Lesion: A detachment of the superior labrum, often involving the biceps anchor. These are categorized by the Snyder Classification (Types I–IV).
Surgical Instrumentation
Modern arthroscopic repair utilizes high-tensile, non-absorbable sutures and small-diameter suture anchors (typically 1.5mm to 3.0mm, made of PEEK or bio-composite materials). The procedure is performed under general anesthesia with an interscalene nerve block, utilizing a standard posterior viewing portal and anterior working portals.
3. Extensive Clinical Indications and Usage
Indications for Surgery
Surgical intervention is indicated when conservative management (physical therapy, activity modification, NSAIDs) fails to yield functional stability or when the patient’s lifestyle demands a high degree of shoulder reliability.
| Condition | Clinical Presentation | Primary Indication |
|---|---|---|
| Bankart Lesion | Recurrent anterior dislocation/subluxation | Restore capsulolabral tension |
| SLAP Type II | Deep posterior pain, clicking, overhead fatigue | Re-anchor biceps/labral complex |
| SLAP Type IV | Biceps instability, "popping" | Debridement + anchor fixation |
| Multi-directional | Generalized laxity, failed PT | Capsular plication/shift |
Patient Pre-Operative Preparation
- Clinical Imaging: MRI Arthrography (MRA) remains the gold standard to visualize labral detachment.
- Physical Evaluation: Assessment of the "Apprehension Test" and "Relocation Test" to confirm anterior instability.
- Medical Clearance: Routine blood panels, EKG (if over 50), and cessation of anti-platelet medications (Aspirin/NSAIDs) 7–10 days prior.
- Physical Therapy (Pre-hab): Focused on periscapular stabilization to optimize the scapulothoracic rhythm before surgery.
4. The Surgical Procedure: Step-by-Step
Phase I: Diagnostic Arthroscopy
The surgeon enters the joint, assesses the articular cartilage for Hill-Sachs lesions (humeral head impaction) or bone loss on the glenoid (bony Bankart).
Phase II: Preparation of the Bed
The glenoid rim is debrided of soft tissue to create a "bleeding bed" of bone. This is critical for biological healing; the bone must be decorticated using a burr or rasp to encourage osteoblast migration.
Phase III: Anchor Placement and Suture Management
- Drilling: Holes are drilled at the 5:30 and 4:30 positions (for Bankart) or 10:00 and 2:00 (for SLAP).
- Suture Passing: Using specialized suture passers (e.g., BirdBeak, KingFisher), the surgeon passes the suture through the labral tissue.
- Knot Tying: Using arthroscopic sliding-locking knots (e.g., Duncan loop or SMC knot), the labrum is secured firmly against the glenoid rim.
Phase IV: Capsular Plication
If the capsule is redundant or stretched, the surgeon performs a capsular shift—tightening the inferior glenohumeral ligament (IGHL) to prevent future subluxation.
5. Post-Operative Recovery Protocol
The recovery timeline is strictly tiered to ensure biological healing before aggressive loading.
- Weeks 0–6 (Protection Phase): The patient wears an abduction sling/immobilizer. Passive range of motion (PROM) only. No active biceps activation (especially for SLAP repairs).
- Weeks 6–12 (Intermediate Phase): Discontinue sling. Begin Active Assisted Range of Motion (AAROM). Initiate gentle rotator cuff strengthening.
- Weeks 12–20 (Strengthening Phase): Progressive resistance training. Focus on the posterior cuff and scapular stabilizers (serratus anterior, rhomboids).
- Months 6–9 (Return to Sport): Full functional training, sport-specific drills, and plyometrics.
6. Risks, Side Effects, and Contraindications
Potential Complications
- Stiffness (Adhesive Capsulitis): The most common complication. Often managed with aggressive PT or, rarely, manipulation under anesthesia.
- Recurrent Instability: Risk factors include significant bone loss (glenoid track) or non-compliance with the post-op immobilization protocol.
- Hardware Irritation/Failure: Suture anchors may occasionally cause intra-articular irritation if not placed flush with the bone.
- Neurological Injury: Transient neurapraxia of the axillary or musculocutaneous nerve due to traction.
Contraindications
- Severe Glenoid Bone Loss: If >25% of the glenoid is missing, a Bankart repair will likely fail. A Latarjet (bone block) procedure is indicated instead.
- Active Infection: Absolute contraindication until treated.
- Advanced Glenohumeral Arthritis: Labral repair will not improve pain caused by cartilage loss.
7. Alternative Treatments
- Physical Therapy: First-line for atraumatic instability. Focuses on the "Rotator Cuff-Scapular" muscle synergy.
- Biologic Augmentation: Platelet-Rich Plasma (PRP) or Bone Marrow Aspirate Concentrate (BMAC) injections are sometimes used to aid biological healing of the labral tissue, though evidence is still evolving.
- Latarjet Procedure: For patients with significant bony Bankart lesions; involves transferring the coracoid process to the anterior glenoid to provide both a bone block and a "sling effect" of the conjoined tendon.
8. Frequently Asked Questions (FAQ)
Q1: How long does the surgery take?
Typically 60 to 90 minutes, depending on the severity of the tear and the number of anchors required.
Q2: Will I have permanent stiffness?
Most patients regain full range of motion within 6 months. Stiffness is a normal part of the healing process as the capsule tightens.
Q3: Is the repair "permanent"?
While the repair restores anatomy, high-risk activities (e.g., contact sports) always carry a risk of re-injury. Success rates for return to play exceed 85–90%.
Q4: Can I drive after surgery?
Not while in a sling and taking narcotic pain medication. Usually, driving is permitted at 6 weeks post-op.
Q5: What is the difference between Bankart and SLAP?
Bankart is inferior/anterior (usually trauma-related). SLAP is superior (usually overhead-throwing or repetitive strain-related).
Q6: Do the anchors stay in my body forever?
Yes. Modern anchors are made of biocompatible materials that integrate into the bone over time.
Q7: Will I need physical therapy?
Physical therapy is mandatory. Without it, the shoulder will likely remain stiff or unstable.
Q8: Can I return to overhead sports?
Yes, but the timeline is strict. Overhead athletes often wait 9–12 months to ensure the biceps anchor is fully integrated.
Q9: What if I have bone loss?
If the glenoid bone loss is significant, your surgeon may recommend a bone graft (Latarjet) instead of a simple labral repair.
Q10: What are the success rates?
For primary arthroscopic Bankart repair, success rates for returning to previous levels of activity are generally between 85% and 95% in non-contact athletes.
9. Conclusion
Arthroscopic labral repair remains a highly successful intervention for restoring shoulder stability. By combining anatomical fixation with a disciplined, phased rehabilitation program, surgeons can help patients return to their desired level of function with minimal morbidity. Success relies not only on the surgical technique but also on the patient's adherence to the recovery protocol and the quality of the post-operative physical therapy program. Always consult with a fellowship-trained orthopedic surgeon to determine if you are a candidate for this procedure.