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Knee ConditionsAnterior Cruciate Ligament (ACL) Tear
Typical Presentation:
Usually occurs during a pivoting or twisting injury, often non-contact, in sports.
Patients report a sudden “pop” in the knee, followed by immediate swelling due to hemarthrosis.
Experience pain deep in the knee and a sense of instability or “giving way,” especially with cutting or pivoting movements.
Physical Exam:
Often an effusion and difficulty bearing weight.
Lachman test: most sensitive exam for ACL integrity; increased anterior translation of the tibia with a soft endpoint indicates a tear.
Pivot-shift test: demonstrates rotational instability; positive if it reproduces a clunk or “giving way” at ~20–30° of flexion.
Assess for concurrent injuries (meniscus tears, MCL) as they are common.
Imaging:
X-rays are usually normal but obtained to rule out fractures.
Segond fracture: pathognomonic finding for ACL tear if present (lateral tibial plateau avulsion).
MRI: the diagnostic gold standard to confirm the ACL tear and evaluate associated injuries.
Treatment:
Initial management: rest, bracing, ice, and inflammation control.
Definitive treatment:
Young or active patients: surgical ACL reconstruction to restore knee stability.
Older or low-demand patients: nonoperative management (rehabilitation to strengthen surrounding muscles and functional bracing) may be considered.
Post-operative rehab is crucial for recovery and to prevent re-rupture.
Posterior Cruciate Ligament (PCL) Injury
Typical Presentation:
Usually results from a posteriorly directed force on the proximal tibia (the “dashboard injury” in car accidents) or from a severe hyperflexion injury.
Patients may have posterior knee pain and less obvious instability.
Some isolated PCL tears are asymptomatic or subtle in complaints.
There may be an effusion, but often less dramatic than an ACL tear.
Physical Exam:
Posterior sag sign: with the knee flexed, the tibia sags back relative to the femur.
Positive posterior drawer test: increased posterior translation of the tibia.
Grade III injuries show >10–12 mm of posterior laxity.
Quadriceps active test: with the knee at 90° flexion, patient contracts the quadriceps; a positive test is anterior tibial shift (meaning the PCL was allowing posterior subluxation at rest).
Always check for other injuries (PLC – posterolateral corner – injury is common with high-grade PCL tears).
Imaging:
X-rays may show a tibial avulsion fragment or subtle posterior subluxation of the tibia on the femur in severe injuries.
Lateral stress radiographs can quantify posterior laxity.
MRI is used to confirm PCL tears and to evaluate concomitant injuries (PLC, meniscus, etc.)
Treatment:
Many isolated PCL tears (especially partial tears, grade I-II) are treated nonoperatively with bracing (PCL-specific hinge brace) and rehabilitation focusing on quadriceps strengthening.
Complete or combined ligament injuries may require surgical PCL reconstruction, particularly if there is persistent posterior instability or other torn ligaments.
Post-treatment, patients often rehab with an emphasis on avoiding posterior tibial sag (e.g., no gravity pull in flexion).
Surgical intervention is also indicated for PCL injuries with bony avulsion if the fragment can be fixed.
Meniscus Tear
Typical Presentation:
Can occur acutely in a twisting injury (common in athletes) or chronically as degenerative tears in older patients.
Patients localize pain to the medial or lateral joint line.
There may be swelling that is often delayed (developing over hours) rather than immediate.
Mechanical symptoms like clicking, catching, or locking (in the case of a large “bucket-handle” tear) are common.
Knee motion can be limited, especially extension if a fragment is displaced.
Physical Exam:
Joint line tenderness is the most sensitive exam finding for meniscal injury.
Provocative tests like the McMurray test (pain or a palpable click with tibial rotation during knee flexion/extension) are classically positive.
Thessaly test (patient rotates on a flexed knee) may reproduce joint line pain.
Evaluate knee stability as meniscal tears can coincide with ligament injuries (e.g., ACL tears).
Imaging:
X-rays are usually normal in meniscal tears (they may show indirect signs like joint space narrowing if degenerative).
MRI is the diagnostic modality of choice, confirming the presence, location, and pattern of tear.
MRI also helps differentiate meniscus tears from other pathology and assess concomitant injuries.
Treatment:
Initial treatment for small or degenerative tears is often conservative – rest, NSAIDs, activity modification, and physical therapy to strengthen surrounding muscles.
For persistent symptoms or large tears, arthroscopic intervention is common.
Depending on tear type and vascular zone, this may involve partial meniscectomy (trimming the torn fragment) versus meniscal repair (suturing the tear).
Repairs are favored in younger patients for tears in the vascular peripheral zone to preserve meniscus function.
Post-op rehab is tailored to whether a repair was performed (repairs require longer protection).
Notably, chronic meniscectomy can lead to higher risk of osteoarthritis down the line due to loss of shock absorption.
Articular Cartilage Injuries of the Knee
Typical Presentation:
Cartilage injuries in the knee may be traumatic (e.g. an osteochondral fracture from an acute impact) or chronic/degenerative (wear and tear or chondral lesions in osteoarthritis).
Patients typically have vague knee pain, often localized to the affected compartment.
They may describe intermittent swelling, catching sensations, or locking if a loose fragment is present.
In acute osteochondral injuries, a piece of cartilage/bone may cause acute symptoms; in chronic cases, pain is activity-related and progressive.
Physical Exam:
There are no pathognomonic exam maneuvers for cartilage lesions.
Patients may have an effusion after activity.
Crepitus or grinding can be felt with joint motion if degenerative changes are present.
Focal tenderness at the involved area (e.g., femoral condyle) can sometimes be elicited.
Alignment should be noted (malalignment can predispose to focal cartilage wear).
Ligamentous exam and meniscus exam should be performed to rule out associated injuries.
Imaging:
X-rays should be obtained to assess for associated bony injuries or osteoarthritis.
They may appear normal in isolated chondral injuries, but specialized views (e.g., weight-bearing flexed PA view) can show early joint space loss.
MRI is the best modality to visualize cartilage defects or loose bodies and to map size/depth of lesions.
MRI can also detect associated bone edema or cysts under the defect.
In young patients with focal lesions, MRI helps in surgical planning.
Treatment:
Conservative management is first-line for small or mild lesions and for patients with minimal symptoms.
This includes rest from impact activities, NSAIDs, physical therapy focusing on strength and alignment, weight loss if applicable, and possibly offloading braces for unicompartmental lesions.
Injection therapies (such as viscosupplementation or PRP) may provide symptomatic relief in degenerative cases (though they don’t heal the cartilage).
If conservative measures fail or the defect is large (especially in younger patients), surgical options are considered.
These range from arthroscopic debridement/chondroplasty (smoothing the cartilage) to marrow stimulation (microfracture) for small lesions, or osteochondral grafting and autologous chondrocyte implantation for larger lesions.
Surgical decision-making is individualized based on defect size, patient age, and concomitant factors.
Postoperatively, a period of protected weight-bearing and therapy is needed, especially for regenerative procedures.
Medial Collateral Ligament (MCL) Injury
Typical Presentation:
The MCL is injured by a valgus stress to the knee, such as a blow to the lateral side of the knee (common in contact sports).
Patients report medial knee pain.
Swelling is usually localized (not a large effusion, as MCL is extra-articular).
They often can still ambulate but with medial knee pain and may feel unstable in severe tears.
MCL injuries are graded I (mild stretch), II (partial tear), III (complete tear).
Isolated MCL tears are common and frequently associated with ACL tears in more severe knee injuries.
Physical Exam:
Tenderness is present along the medial knee (MCL course).
The valgus stress test is key: at 30° knee flexion, opening of the medial joint space with a soft endpoint indicates MCL tear.
Grade III injuries show gross laxity with no firm endpoint.
If there is laxity in full extension, it suggests injury to additional structures (ACL/PCL) since the knee is unstable in extension only if multiple ligaments are torn.
Evaluate for medial joint line tenderness (meniscus) and ACL integrity (as combined injuries are common).
Imaging:
X-rays may be normal or show an avulsion at the femoral origin of the MCL (occasionally chronic MCL injury leads to calcification known as Pellegrini-Stieda lesion).
X-ray can also rule out associated fractures.
MRI is often used in Grade II–III injuries or if concomitant ACL/meniscal tears are suspected, as it can confirm the MCL tear and grade its severity.
MRI is sensitive for locating the tear (femoral vs tibial attachment) which can guide treatment (distal tears may heal less predictably).
Treatment:
Nonoperative management is the standard for most MCL injuries.
This includes RICE, hinged knee bracing (to protect from valgus stress), and early controlled motion.
Grades I and II typically heal within a few weeks.
Even many Grade III MCL tears will heal with bracing over 6–8 weeks, especially if isolated.
Physical therapy focuses on quadriceps strength and knee range of motion.
Surgical repair or reconstruction of the MCL is reserved for specific cases: high-grade tears with persistent valgus laxity (especially if combined with an ACL tear requiring surgery), or when there is an interposed tissue preventing healing.
In multiligament knee injuries (knee dislocations), the MCL is often repaired or reconstructed as part of restoring overall stability.
Outcomes for isolated MCL tears are generally excellent with nonoperative treatment.
Lateral Collateral Ligament (LCL) Injury
Typical Presentation:
LCL injuries occur with a varus force to the knee (blow to medial aspect of knee).
Isolated LCL tears are less common than MCL injuries and often occur in the context of posterolateral corner (PLC) injuries or knee dislocations.
Patients have pain on the lateral side of the knee and may report instability, especially when pivoting toward the affected side.
There might be bruising along the lateral knee.
In severe PLC injuries, patients can have difficulty with activities like walking on uneven ground or a feeling of the knee hyperextending.
Physical Exam:
Tenderness along the LCL (fibular head region) is present.
A varus stress test at 30° flexion will demonstrate lateral opening if the LCL is torn (Grade III injuries show >10 mm opening with no endpoint).
Varus laxity at 0° (full extension) suggests injury to LCL and cruciate ligaments.
The dial test can help evaluate PLC involvement (increased external rotation at 30° and 90° indicates combined PCL & PLC injury).
Always assess peroneal nerve function due to its proximity to the LCL/PLC (foot drop can occur with severe injuries).
Imaging:
X-rays may show an avulsion of the fibular head (arcuate sign) if the LCL or PLC is avulsed.
Stress radiographs can quantify varus instability.
MRI is very useful to confirm LCL tears and assess the posterolateral corner structures and any associated cruciate tears.
MRI helps in surgical planning by delineating which structures (LCL, popliteofibular ligament, etc.) are injured.
Treatment:
Grade I-II LCL sprains (minor tears) can often be treated nonoperatively with bracing (hinged knee brace to prevent varus) and rehabilitation, as partial LCL tears can heal.
However, complete LCL tears (Grade III), especially when combined with other ligament injuries, usually require surgical reconstruction to prevent chronic instability.
Isolated Grade III LCL injuries in a young active patient are often reconstructed, whereas an older patient with low demand might try bracing.
Injuries to the entire posterolateral corner frequently necessitate surgical repair/reconstruction of multiple structures for knee stability.
Post-op, patients are protected in a brace and gradually advanced in therapy.
Unrecognized LCL/PLC injuries can lead to persistent instability and failure of ACL/PCL reconstructions, so high-grade injuries are taken seriously.
Patellar Maltracking (Patellofemoral Pain Syndrome)
Typical Presentation:
Patellar maltracking typically presents as anterior knee pain often in teenage or young adult patients, particularly females. It is an overuse condition also known as patellofemoral pain syndrome or “runner’s knee.”
Pain is described as achy and located behind or around the patella.
It is worse with prolonged sitting (the “theater sign” or “movie sign”), squatting, or going up and down stairs.
Knees may feel stiff after sitting.
Occasionally, the patient reports a feeling of the kneecap “slipping” or catching.
Physical Exam:
There is usually no swelling.
A Q-angle may be increased (indicative of lateral pull on the patella).
On inspection during knee extension, the patella may demonstrate a J-sign (lateral deviation as it moves).
Palpation often reveals tenderness along the patellar margins (especially lateral facet).
The patellar grind test (pressing the patella against the femur while the patient tightens the quad) elicits pain indicating chondral irritation.
Patellar apprehension test may be positive if there is a history of subluxation (patient expresses apprehension when the patella is pushed laterally).
Imaging:
X-rays (including sunrise/merchant view) can show lateral tilt or subluxation of the patella and any dysplasia of the trochlea.
They might also reveal evidence of chondromalacia patellae if present (such as slight degenerative changes).
Often, imaging is normal in pure maltracking.
MRI is not routine unless a cartilage lesion or patellar instability episode (like a dislocation causing loose fragment) is suspected. It can show cartilage wear or MPFL injury in cases of dislocation.
Treatment:
The mainstay is nonoperative management.
This involves activity modification (avoiding painful activities temporarily), NSAIDs for pain, and especially physical therapy focusing on quadriceps strengthening (particularly the VMO – vastus medialis oblique) and hip abductors/core strength.
Stretching of tight lateral structures (iliotibial band, lateral retinaculum) and hamstrings is beneficial.
Taping or a patellar stabilizing brace can help center the patella.
Orthotics may assist if foot pronation contributes to malalignment.
Patellofemoral maltracking pain usually improves with conservative treatment over time.
If nonoperative measures fail and the patient has severe malalignment or recurrent dislocations, surgical options are considered (for example, lateral retinaculum release, MPFL reconstruction, or tibial tubercle osteotomy to realign the extensor mechanism).
These are reserved for persistent, significant cases because most patients improve with rehab.
Quadriceps and Patellar Tendonitis (“Jumper’s Knee”)
Typical Presentation:
Overuse of the extensor mechanism can cause tendonitis in the quadriceps tendon (where it inserts into the patella) or the patellar tendon (between patella and tibial tubercle).
These conditions are common in athletes engaged in jumping sports like basketball or volleyball (hence “jumper’s knee”).
Patients report anterior knee pain that is worsened by running, jumping, or climbing stairs.
Quadriceps tendonitis pain is felt at the top of the patella, whereas patellar tendonitis pain is at the bottom of the patella or tibial tubercle.
Pain typically increases with activity and may improve with rest; in early stages it occurs only after activity, but in later stages it can be present during exercise and even at rest.
Physical Exam:
There is focal tenderness at the affected tendon insertion: either at the superior pole of the patella (quadriceps tendonitis) or the inferior pole of the patella (patellar tendonitis at the patellar attachment, or slightly lower at the tibial tubercle if that’s involved).
The area may be thickened.
Resisted extension of the knee (e.g. asking patient to straighten the knee against resistance) reproduces pain at the tendon.
Squatting or a jump will also be painful.
Quadriceps muscle flexibility and hamstring flexibility should be assessed, as tight muscles can contribute.
Imaging:
Diagnosis is clinical.
Ultrasound or MRI can show tendon thickening or microtears, but these are rarely needed initially.
Chronic cases might show calcification at the tendon or degenerative changes (MRI may show signal changes at the tendon origin).
X-rays are usually unremarkable, though in chronic patellar tendonitis, an x-ray may show an enthesophyte at the inferior patella (sometimes called Jumper’s knee spur).
Treatment:
Conservative management is effective in most cases.
This includes rest from aggravating activities (relative rest, not complete immobilization), ice after exercise, and NSAIDs for pain relief (short-term use to avoid tendon weakening).
A patellar tendon strap (for patellar tendonitis) can reduce strain on the tendon during activities.
Physical therapy is critical: eccentric strengthening exercises of the quadriceps are proven to help tendon healing, and stretching of the quadriceps and hamstrings reduces tendon stress.
Flexibility and core/hip strength are also addressed.
If pain is severe, a brief period of knee immobilization or reduced weight-bearing might be used, but prolonged rest can lead to atrophy.
For refractory cases, a corticosteroid injection is generally avoided into the tendon due to the risk of tendon rupture (injections, if done, are sometimes placed around the tendon sheath rather than directly into the tendon).
Some chronic cases benefit from PRP (platelet-rich plasma) injections to promote healing (evidence is evolving).
Surgery (tendon debridement) is a last resort for chronic, debilitating cases that fail at least 6–12 months of nonoperative treatment.
The vast majority of athletes recover with appropriate rest and rehab, though it can be a persistent issue if they return to high-impact sports too quickly.
Knee Osteoarthritis (Degenerative Joint Disease of the Knee)
Typical Presentation:
Knee osteoarthritis (OA) is a degenerative wear-and-tear disease of the articular cartilage of the knee joint.
It is common in older adults (50s and above) or younger patients with prior knee injuries.
Patients have chronic knee pain that is worsened by weight-bearing activities such as walking, going up/down stairs, or standing for long periods.
Stiffness is present, especially after immobility (morning stiffness or after sitting, usually lasting <30 minutes and easing with gentle movement).
They may report grinding or cracking noises (crepitus) and, in advanced cases, knee deformity (typically varus alignment for medial compartment OA).
There are often intermittent joint effusions causing swelling.
Physical Exam:
Inspection might show a varus or valgus alignment depending on compartment wear.
There may be a bulge of fluid (effusion) and bony enlargement around the joint.
Palpation reveals joint line tenderness (medial joint line tenderness is common in medial compartment OA).
Crepitus can be felt and heard with range of motion.
Range of motion may be limited – patients often lose a few degrees of full extension or have pain at end-range flexion.
Stability tests should remain normal (ligaments are intact; if instability is present, consider secondary effects or another diagnosis).
No significant warmth or redness (unless an inflammatory flare or superimposed crystal arthritis) – OA is typically non-inflammatory.
Imaging:
Weight-bearing X-rays of the knee are diagnostic.
Classic findings are joint space narrowing, subchondral sclerosis (hardening of bone), subchondral cysts, and osteophytes (bone spurs) at the joint margins.
In knee OA, the medial compartment is most often affected (leading to varus deformity over time).
Special views like a PA flexion (Rosenberg view) can better show joint space loss.
X-rays also help grade severity.
MRI is not required for typical OA but will show cartilage loss and meniscus degeneration; it’s more used if symptoms are atypical or to evaluate soft tissues for other pathology.
Treatment:
Conservative management is first-line for knee OA.
This includes patient education, weight loss (even a 5-10% weight reduction can significantly reduce pain in overweight patients), and exercise/PT focusing on low-impact quadriceps strengthening (to improve joint support).
NSAIDs or acetaminophen are used for pain relief; topical NSAIDs or capsaicin can be tried for mild cases.
A knee brace or unloader brace can help in unicompartmental OA by offloading the affected side.
Corticosteroid injections into the knee can provide short-term relief of pain and inflammation – often used for moderate to severe OA flares (typically giving a few months of relief).
Viscosupplementation (hyaluronic acid injections) is sometimes used, though evidence is mixed.
Other modalities like using a cane (in the opposite hand) can reduce knee load.
If these measures fail and the patient has severe pain with radiographic OA, especially with functional limitations, surgical treatment is indicated.
The definitive surgical option is total knee arthroplasty (total knee replacement), which reliably improves pain and function in end-stage knee OA.
(In younger patients with unicompartmental disease, a partial knee replacement or osteotomy to realign the knee may be considered to delay a total knee.)
Arthroscopic “clean up” of osteoarthritis is generally not beneficial unless there are mechanical locking symptoms from a meniscal tear or loose body.
The management plan is individualized to the patient’s age, severity of disease, and response to conservative treatments.
Shoulder Conditions
Rotator Cuff Tear (Partial vs Full Thickness)
Typical Presentation:
Rotator cuff tears are a very common cause of shoulder pain and dysfunction. They can result from an acute injury (e.g. lifting something heavy or a fall on an outstretched arm) or, more commonly, chronic degeneration (wear and tear in older adults).
Patients with chronic tears (often age > 50) report gradual onset of shoulder pain, often located at the lateral deltoid region.
Night pain that awakens them from sleep is characteristic of rotator cuff pathology.
There is difficulty with overhead activities and weakness – for example, trouble lifting objects above shoulder level or combing hair.
In acute full-thickness tears (often in younger patients or following trauma), there may be a sudden onset of pain and an inability to raise the arm.
Physical Exam:
Atrophy of the supra- or infraspinatus muscle may be noted in chronic cases.
Range of motion: patients may have near-normal passive ROM but painful and weak active ROM, especially in abduction and external rotation.
Specific tests target each cuff muscle:
Jobe’s “empty can” test (arm elevated 90° in scapular plane, thumbs down) isolates the supraspinatus – pain or weakness indicates a tear.
External rotation strength test (elbows at sides) checks infraspinatus/teres minor.
Lift-off or belly-press test checks subscapularis (internal rotation).
A large tear in supraspinatus may cause the drop-arm sign (inability to smoothly lower the arm from 90° abduction).
Impingement signs (Neer’s and Hawkins’ tests) are often positive, reflecting bursitis or partial tearing.
In massive tears, the patient may have pseudoparalysis (cannot actively lift the arm but passive motion is full).
Imaging:
X-rays can show proximal humeral migration (in chronic massive tears, the humeral head rides high due to loss of cuff support) or acromial bone spurs.
X-rays also assess for arthritis of the glenohumeral or acromioclavicular joint that could contribute to symptoms.
MRI is the gold standard to evaluate rotator cuff tears: it can distinguish partial-thickness from full-thickness tears, show the tear size and retraction, and assess muscle atrophy/fatty degeneration.
An ultrasound is an alternative in experienced hands (it can visualize full-thickness tears).
For surgical planning, MRI provides detail on which tendons are torn (supraspinatus is most common).
Treatment:
Depends on tear severity, chronicity, and patient factors.
Many partial-thickness tears and even some small full-thickness tears can be managed nonoperatively initially.
Conservative management includes rest from overhead activities, NSAIDs, and physical therapy to strengthen the remaining cuff muscles and scapular stabilizers.
Subacromial corticosteroid injections can reduce pain and inflammation to facilitate therapy.
If the patient regains strength and pain is manageable, they can be followed without surgery.
However, full-thickness tears, especially in younger or active patients, often require surgical repair.
Early surgical repair is typically recommended for acute traumatic tears in healthy individuals to restore function.
In older or sedentary patients with full-thickness tears, a trial of PT may be done, but if they have persistent weakness or pain, surgery is considered.
Surgical treatment is usually arthroscopic or open rotator cuff repair (re-attaching the tendon to bone).
Large or massive tears may not be fully repairable; in those cases, other options like tendon transfers or in older patients, a reverse total shoulder arthroplasty (for cuff tear arthropathy) might be considered.
Post-operatively, extensive rehabilitation (over 3–6 months) is required.
Prognosis:
Partial tears often do well with rehab.
Full tears that are repaired have good outcomes if repaired before significant muscle atrophy occurs.
Non-repaired full tears can enlarge over time, so monitoring is needed if the nonoperative route is chosen.
Labrum/SLAP Tear (Superior Labrum Anterior-Posterior Lesion)
Typical Presentation:
A SLAP lesion involves a tear of the superior labrum of the shoulder where the biceps tendon attaches.
It commonly occurs in overhead athletes (e.g. baseball pitchers, volleyball players) from repetitive overhead motion, or from acute trauma such as a fall on an outstretched hand or a sudden pull on the arm.
Patients often complain of deep shoulder pain that is worse with overhead activities or throwing.
There may be clicking or catching in the shoulder.
In some cases, there’s concomitant biceps tendonitis – pain over the anterior shoulder/biceps groove.
Throwing athletes may notice decreased velocity or accuracy.
Physical Exam:
SLAP tears can be subtle on exam.
O’Brien’s test is commonly used: with the arm forward-flexed 90° and adducted across the body, the patient resists downward pressure first with thumb down (internal rotation) and then with palm up; the test is positive if pain is elicited with thumb down and lessens with palm up (indicating labral involvement).
Speeds test (resisted forward flexion of the shoulder with elbow extended and forearm supinated) and Yergason’s test (resisted forearm supination/flexion at 90° elbow flexion) may be positive if the biceps anchor is involved, causing pain in the bicipital groove.
There may be generalized shoulder weakness or pain at extremes of motion (like abduction-external rotation).
Because exam findings overlap with other shoulder issues, a combination of tests increases suspicion.
Imaging:
MRI arthrogram is the best imaging study for labral tears. A gadolinium arthrogram of the shoulder can show contrast entering a labral tear.
SLAP lesions can be hard to visualize, but an MR arthrogram often identifies superior labrum peeling or tearing and any biceps anchor involvement.
Plain MRI without contrast may miss subtle SLAP tears.
X-rays are usually normal (they might be done to rule out bone injury or calcification).
Intra-articular diagnostic injection (of anesthetic) that relieves pain can confirm the pain is coming from inside the shoulder joint.
Treatment:
Initial treatment can be nonoperative in many cases: rest from aggravating activities (e.g. a throwing interval shutdown), NSAIDs, and physical therapy focusing on rotator cuff and periscapular muscle strengthening to stabilize the shoulder.
This can often alleviate symptoms, especially in older patients or less severe tears.
In younger patients or high-demand athletes who fail conservative therapy, arthroscopic surgery is considered.
Surgical options include labral debridement (trimming) for minor frayed tears or labral repair (suturing the labrum back to the glenoid) for more significant tears, particularly if instability is present.
In older patients (over ~40) with SLAP tears, sometimes a biceps tenodesis (releasing the long head of biceps from the labrum and reattaching it to the humerus) is performed instead of a labral repair, as it can relieve pain and avoids the need for the labrum to heal in an older shoulder.
Post-surgery, throwing athletes require extensive rehab and a gradual return-to-throwing program (often taking 4–6+ months).
The decision for surgery depends on patient age, activity level, and the severity of symptoms; many do well nonoperatively unless they need high-level shoulder function.
Biceps Tendon Tear and Tendonitis (Proximal Biceps Pathology)
Typical Presentation:
The proximal long head of the biceps tendon can become inflamed (tendonitis) or even tear.
Biceps tendonitis often co-exists with shoulder impingement or rotator cuff issues.
It causes anterior shoulder pain that may radiate down the front of the arm.
The pain is typically worse with lifting, pulling, or overhead activities.
Patients may note pain with forearm rotation as well (because the biceps supinates the forearm).
In chronic cases, the tendon can degenerate and an acute tear of the long head can occur during lifting – patients feel a sudden snap or pop in the upper arm with relief of pain but notice a deformity.
A proximal biceps tendon rupture classically causes a “Popeye” muscle bulge in the upper arm (due to the muscle belly retracting) and bruising.
This occurs most often in older individuals with longstanding tendonitis.
Distal biceps tears (at the elbow) are a different injury not included here.
Physical Exam:
In biceps tendonitis, there is point tenderness over the bicipital groove in the anterior shoulder.
The Speed’s test (forward elevation of the arm against resistance with elbow extended and forearm supinated) reproduces pain in the biceps groove.
Yergason’s test (resisted forearm supination while palpating the biceps tendon) may elicit pain or a snapping if the transverse ligament is compromised.
There may be an audible or palpable crepitus as the tendon moves in the groove.
If a rupture has occurred, you will see a distal bunching of the biceps muscle (Popeye sign) and a defect where the tendon should be attached proximal — surprisingly, patients with a ruptured long head can often still flex the elbow reasonably well because the short head of the biceps is intact (strength may be only slightly reduced).
Check for rotator cuff strength and signs of impingement, as these often accompany biceps issues.
Imaging:
X-rays of the shoulder are typically normal, though they might show signs of impingement (such as acromial spurs) or osteophytes in the bicipital groove in chronic cases.
Ultrasound or MRI can visualize the biceps tendon. MRI is useful if a rotator cuff tear is suspected too.
In biceps tendonitis, MRI may show thickening or tenosynovitis of the tendon.
In complete rupture, MRI would show an absent long head tendon in the groove and possibly retraction.
However, if the clinical diagnosis of rupture is clear, advanced imaging is often not needed.
Treatment:
For biceps tendonitis, treatment is usually conservative.
This includes rest from aggravating activities, NSAIDs, and physical therapy focusing on shoulder mechanics (rotator cuff strengthening and stretching to reduce impingement on the biceps).
Ice and topical NSAIDs can be helpful.
A steroid injection into the bicipital sheath can provide relief in stubborn cases of tendonitis (care is taken to inject just into the sheath, not into the tendon substance, to avoid further tendon damage).
If the tendonitis is associated with rotator cuff impingement, treating the impingement (subacromial injection or acromioplasty if needed) will help.
For a proximal biceps tendon tear, many patients (especially older individuals) can be treated nonoperatively with benign neglect – the pain often actually improves after the tendon ruptures (since the diseased portion is gone) and they regain function with time, accepting the cosmetic Popeye deformity.
They should do ROM and strengthening exercises as tolerated.
In a younger patient or a laborer who requires full strength, a biceps tenodesis surgery can be performed (reattaching the long head of biceps to the humerus) to restore the normal contour and some strength.
Tenodesis or simple tenotomy (cutting the tendon and not reattaching) is also done in patients with refractory biceps tendonitis or SLAP lesions (as part of surgical management).
When part of a rotator cuff surgery, surgeons often address the biceps if it’s frayed.