Hip Arthroscopic Labral Repair

The Hip Joint Labrum and Tears (Relationship with Femoroacetabular Impingement – FAI)

Acetabular Labrum: A C-shaped, sturdy, and flexible fibrocartilage (cartilage-like) tissue ring that surrounds the rim of the hip socket (acetabulum). The functions of the labrum are as follows:

• Deepening the hip socket to increase joint stability.
• Creating negative pressure within the joint (a vacuum effect/suction seal) to help keep the joint in place.
• Ensuring the distribution of joint fluid and contributing to cartilage nutrition.
• Optimizing load distribution across the joint.
• Contributing to proprioception (the sense of joint position).

Labral Tear: The tearing of this important structure, or its separation from the joint rim, due to various causes.

Femoroacetabular Impingement (FAI – Hip Impingement Syndrome): This is the most common cause of hip labral tears. This condition results from a mismatch between the ball (femoral head/neck) and the socket (acetabulum) that make up the hip joint. It occurs when, during movement — particularly hip flexion and internal rotation — abnormal bony structures strike against each other or against the labrum and cause impingement. There are two main types:

1. CAM-Type Impingement: There is an abnormal bony prominence (bump) in the transition zone between the femoral head and neck. When the hip is flexed, this bump enters the socket and strikes the labrum and cartilage, causing damage. It is generally more common in young, active men.
2. PINCER-Type Impingement: This occurs when the rim of the acetabular socket excessively covers the femoral head, or is retroverted. During hip movement, the labrum becomes pinched between the excess bony rim of the socket and the femoral neck. It is generally more common in middle-aged women.
   
   • In most patients, both CAM and PINCER type impingement can be present together (Mixed Type).

In the presence of FAI, the labrum is continuously exposed to abnormal mechanical stress and tears over time. For this reason, in treating a labral tear, simply repairing the tear is not enough — the underlying bony problems causing the FAI must also be corrected.

The Goal of Hip Arthroscopic Surgery:

• Restoring joint stability and function by repairing the torn labrum.
• Eliminating the impingement by reshaping the abnormal bony prominences (Cam and/or Pincer lesions) that cause FAI.
• Relieving pain and eliminating mechanical symptoms (catching, locking).
• Increasing the patient’s activity level and enabling a return to sports.
• Preventing or delaying the long-term development of osteoarthritis in the hip joint.

Causes and Risk Factors of Hip Labral Tears

• Femoroacetabular Impingement (FAI): The underlying cause in 80-90% of labral tears.
• Trauma: Acute injuries such as hip dislocation, subluxation, falling onto the hip, or sudden twisting.
• Repetitive Microtrauma: Sports (football, ice hockey, martial arts, ballet, golf, yoga) or activities that particularly require frequent hip flexion and rotation.
• Developmental Dysplasia of the Hip: A shallow hip socket can increase the load placed on the labrum.
• Degenerative Changes: Wear and tear of the labrum with age (often accompanying hip osteoarthritis).
• Joint Laxity: Abnormal joint movement resulting from ligamentous looseness.

What Are the Symptoms of a Hip Labral Tear?

Symptoms usually begin gradually and increase over time, but they can also start suddenly following acute trauma:

• Pain: The most common symptom, typically felt in the groin area (front of the hip). The pain can sometimes radiate to the side of the hip or to the buttock area. It is usually sharp and stabbing in nature, and increases especially with the following movements:
  
  • Deep squatting
  • Flexing and internally rotating the hip (e.g., getting in and out of a car)
  • Sitting for long periods
  • After walking, running, or exercise; the pain can sometimes also be dull and aching in nature.
• Mechanical Symptoms: A sensation of clicking, popping, catching, or locking in the hip during movement.
• Restricted Range of Motion: Difficulty and pain with full hip flexion or internal rotation.
• Feeling of Instability: Rarely, a sensation of the hip giving way.

How Is a Hip Labral Tear Diagnosed?

An accurate diagnosis requires a careful evaluation to determine the presence of FAI and the characteristics of the labral tear:

• Detailed History: The location, onset, and character of the pain, triggering factors, mechanical symptoms, sports played, and history of trauma are questioned.
• Physical Examination: The range of motion of the hip joint (particularly restriction and pain with flexion and internal rotation) is assessed. Specific tests suggestive of FAI and labral tear are performed (the FADIR test is the best known: groin pain elicited with the hip in Flexion, Adduction, and Internal Rotation). The FABER test, hip girdle muscle strength, and tenderness are also assessed.
• Imaging Methods:
  
  • X-ray: The first imaging study ordered. By evaluating the bony structures, it shows findings suggestive of FAI (Cam lesion, Pincer lesion, cross-over sign, etc.), hip dysplasia, or advanced-stage osteoarthritis. AP pelvis and specific hip views (frog-leg lateral, Dunn) are usually obtained.
  • Magnetic Resonance (MR) Imaging: Standard MRI may be insufficient for evaluating the labrum.
  • MR Arthrography (MRA): The gold standard for diagnosing labral tears. An MRI performed after injecting contrast material into the joint shows labral tears, cartilage damage, and other soft-tissue problems much more clearly.
  • Computed Tomography (CT): Can be used, especially to evaluate the bony FAI morphology in more detail in three dimensions, or for surgical planning.
• Diagnostic Intra-Articular Injection: When imaging methods are insufficient, or to confirm that the pain definitively originates from within the joint, local anesthetic is injected into the hip joint under imaging guidance (usually ultrasound or fluoroscopy). A marked, temporary reduction in pain supports the conclusion that the problem lies within the joint.

Treatment Options: Conservative or Surgical?

The treatment decision is made based on the patient’s age, activity level, symptom severity, the type of labral tear, and the presence/severity of FAI.

Non-Surgical (Conservative) Treatment:

This can be tried first in patients with mild symptoms, minimal FAI findings, or who do not want or are not suitable for surgery. However, since it generally does not resolve the underlying FAI problem or heal the tear, its long-term effectiveness may be limited.

• Activity Modification: Avoiding movements that trigger pain (deep squatting, excessive flexion/rotation).
• Medication: NSAIDs for pain and inflammation.
• Physical Therapy: Very important. The goal:
  
  • Strengthening the hip girdle (gluteal, abductor) and core (abdominal/lower back) muscles.
  • Increasing neuromuscular control of the hip joint.
  • Improving flexibility.
  • Important: Structuring the exercise program to avoid movements that could cause impingement.
• Intra-Articular Injections: Corticosteroid or hyaluronic acid injections may temporarily reduce pain but are not curative. A local anesthetic injection for diagnostic purposes may also be performed.

Surgical Treatment: Arthroscopic Hip Surgery

Hip arthroscopy is recommended for patients who do not respond to conservative treatment (usually 3-6 months), have significant symptoms (pain, catching), have expectations of an active lifestyle, and are found on imaging to have a repairable labral tear and/or FAI requiring correction.

Arthroscopic Hip Surgery: Labral Repair and FAI Correction

Hip arthroscopy is a minimally invasive surgery that is technically more demanding than shoulder or knee arthroscopy, requiring specialized equipment and experience:

1. Preparation and Positioning: The patient is placed on the operating table in a special position, and the joint is distracted (traction) by gently and controllably pulling the leg to create working space within the hip joint.
2. Procedure: A camera (arthroscope) and slender surgical instruments are inserted into the joint through several small incisions (approximately 1 cm) made around the hip.
3. Intra-Articular Assessment: The surgeon examines the inside of the joint (labrum, cartilage, ligaments, bony structures) in detail on a screen.
4. Labral Treatment:
   
   • Repair (Most Common): If the labral tissue is sufficiently sound, the torn or detached labrum is reattached anatomically to the bony rim (acetabular rim) using special suture anchors (small screws/anchors placed into the bone) and sutures. The goal is to restore the labrum’s stability and sealing function.
   • Debridement (Cleaning): If the labral tissue is too worn or degenerated to be repaired, only the torn and loose fragments are shaved away and cleaned up. This is less preferred than repair.
   • Reconstruction: In rare cases where the labral tissue is too deficient, a new labrum is created using a graft patch taken from the patient’s own tissue (autograft) or from a cadaver (allograft).
5. FAI Correction (Femoroacetabular Osteoplasty): An essential part of the surgery. For the labral repair to be durable and for the impingement not to recur, the underlying bony problems are corrected:
   
   • Cam Osteoplasty (Reshaping): The abnormal CAM bump at the femoral head/neck junction is carefully reshaped back to normal anatomy using a specialized arthroscopic bone shaver (burr).
   • Pincer Osteoplasty (Rim Trimming): The excessive bony prominence (PINCER) at the acetabular rim is likewise carefully corrected with the arthroscopic shaver.
6. Closure: The instruments are removed, the incisions are sutured, and the surgery is completed.

Prof. Dr. Murat Bozkurt is experienced in hip arthroscopy in Ankara and meticulously performs both labral repair and the bony corrections for FAI.

Risks, Benefits, and the Demanding Recovery Process

• Benefits: A successful hip arthroscopy aims to significantly reduce groin and hip pain, eliminate mechanical symptoms such as catching, increase hip range of motion and function, allow a return to prior activity and sports levels, and potentially delay the development of hip osteoarthritis.
• Risks:
  
  • General surgical risks: Infection, blood clotting (DVT/PE), anesthesia complications.
  • Risks specific to hip arthroscopy: Nerve injury (temporary, or rarely permanent, numbness/weakness in the groin, anterior-lateral thigh, or sciatic nerve distribution due to traction), traction-related complications (skin problems, numbness in the genital area), fluid extravasation into surrounding tissue, instrument breakage, joint stiffness, adhesions, heterotopic ossification (unwanted new bone formation around the joint), failure of labral repair, persistent pain, and the need for revision surgery. These risks are low in experienced hands.
• Recovery Process: Recovery after hip arthroscopy is a long process that requires patience and where full compliance with rehabilitation is critical.
  
  • Crutches and Weight-Bearing Restriction: To protect the repaired labrum and the bony work performed, it is generally necessary to use crutches and avoid full weight-bearing (or bear only partial weight) on the leg for 4 to 6 weeks after surgery (sometimes longer).
  • Movement Restrictions: Certain hip movements (especially deep flexion, excessive rotation) are restricted initially. A special brace may sometimes be used.
  • Progressive Physical Therapy: Rehabilitation is vital to the success of the surgery. It begins with passive range-of-motion exercises started immediately after surgery. Over time, the program progresses very slowly and in a controlled manner to active movements, and then to strengthening exercises for the hip girdle, core, and leg muscles. Specific hip arthroscopy rehabilitation protocols are followed.
  • Timeline: Return to work (for desk jobs) may be possible within a few weeks, while return to normal daily activities takes months. Return to sports and strenuous activities generally takes a long time, typically 6 to 12 months.

Hip Arthroscopy and Labral Repair in Ankara: Prof. Dr. Murat Bozkurt’s Approach

The arthroscopic treatment of hip labral tears and FAI is one of the more specialized areas of orthopedics, requiring specific training and a high level of technical skill. In Ankara, Prof. Dr. Murat Bozkurt offers his patients a modern and comprehensive service in this field:

• Expert Diagnostic Approach: He accurately diagnoses the labral tear and the underlying FAI morphology through patient history, a detailed physical examination, and advanced imaging methods such as MR Arthrography.
• Not Overlooking Conservative Treatment: He evaluates non-surgical treatment options before surgery and tries these methods first in suitable patients.
• Advanced Arthroscopic Surgical Skill: When surgery is required, drawing on his experience in hip arthroscopy, he meticulously performs both labral repair (with the goal of anatomic restoration) and correction of the bony problems causing FAI (osteoplasty) in the same session. He emphasizes the importance of correcting FAI for long-term success.
• Structured Rehabilitation Management: He plans the long, structured rehabilitation program that is key to post-surgical success and monitors the patient’s compliance with this process.

Hip labral tears and femoroacetabular impingement are a significant cause of hip pain, particularly in young and active individuals. Arthroscopic surgery offers an effective, minimally invasive solution for correctly selected patients, both repairing the labrum and correcting the underlying bony problem. However, it must be remembered that post-surgical success largely depends on a rehabilitation program carried out with patience. For your hip problems in Ankara, you can benefit from the expertise of Prof. Dr. Murat Bozkurt.

For detailed information and appointments, you can contact Prof. Dr. Murat Bozkurt at 0312 502 70 74.