Orthopedic Ob Shoulder And Elb Review | Dr Hutaif Shoul -...

The Latarjet procedure involves transferring the coracoid process with the attached conjoined tendon to the anterior glenoid neck. It is indicated in patients with recurrent anterior shoulder instability who have critical glenoid bone loss (typically >20-25%). It provides a triple blocking effect: bone block, sling effect of the conjoined tendon, and capsular repair.

In the surgical management of a terrible triad injury of the elbow, a deep-to-superficial, anterior-to-posterior, or medial-to-lateral progression is generally utilized. The widely accepted standard sequence from a lateral or global approach is: 1) fixation of the coronoid fracture and anterior capsule, 2) fixation or replacement of the radial head, and 3) repair of the lateral ulnar collateral ligament (LUCL). If the elbow remains unstable after this sequence, the MCL may be explored and repaired.

Reverse total shoulder arthroplasty (RTSA) is the gold standard for elderly patients with rotator cuff arthropathy and pseudoparalysis, provided the deltoid and axillary nerve are intact. By medializing the center of rotation and placing the humerus distally, it increases the deltoid moment arm, allowing for functional arm elevation despite a deficient rotator cuff.

A 'pink, pulseless' hand following reduction of a supracondylar humerus fracture is a well-recognized clinical scenario. Provided that the hand is definitively warm, pink, and has capillary refill < 2 seconds, collateral circulation is deemed adequate. The recommended management is observation and close monitoring for 24-48 hours. Open exploration is indicated only for a 'white, pulseless' hand or if signs of ischemia develop.

The patient has a posterior shoulder dislocation, classically associated with seizures, electrocution, or high-energy trauma. The 'lightbulb' sign is typical on AP radiographs due to internal rotation of the humerus. The most common associated bony defect is a reverse Hill-Sachs lesion, which is an impaction fracture of the anteromedial aspect of the humeral head against the posterior glenoid rim.

The Bado classification categorizes Monteggia fractures based on the direction of radial head dislocation. Type I (anterior dislocation, most common in children), Type II (posterior/posterolateral dislocation, most common in adults), Type III (lateral dislocation), and Type IV (associated with both radius and ulna fractures). Therefore, Type II matches the description.

Absolute indications for ORIF of a medial epicondyle fracture include an incarcerated fragment within the elbow joint that cannot be extracted closed, and an open fracture. Relative indications include displacement > 5 mm, ulnar nerve dysfunction, and high-demand athletes requiring valgus stability. Incarceration within the joint is the only absolute indication among the choices.

The vast majority of pectoralis major ruptures occur at the tendinous insertion onto the proximal humerus, specifically involving the sternocostal head. This injury typically occurs during eccentric loading (e.g., the descent phase of a bench press). Acute surgical repair yields the best functional outcomes for athletes.

Rockwood Type V AC separations involve disruption of both the AC ligaments and the CC ligaments, along with significant stripping and disruption of the deltotrapezial fascia from the distal clavicle. This extreme displacement (>100% to 300% superiorly) requires surgical reconstruction for optimal functional recovery.

The lateral antebrachial cutaneous nerve (LABCN) is the most frequently injured nerve during a single-incision anterior approach for distal biceps tendon repair due to its superficial course lateral to the biceps tendon. While the posterior interosseous nerve (PIN) is at risk, it is more classically injured during the second (lateral) incision of a two-incision approach if dissection splits the supinator incorrectly.

The McKee modification describes a Type IV capitellar fracture, which is a coronal shear fracture that involves not only the capitellum but extends medially to include the lateral ridge and a significant portion of the trochlea. Type I (Hahn-Steinthal) involves a large fragment of the capitellum with subchondral bone. Type II (Kocher-Lorenz) is an articular cartilage fragment with minimal bone. Type III is a comminuted fracture.

Hertel et al. (2004) identified specific criteria that strongly predict humeral head ischemia following proximal humerus fractures. The combination most predictive of avascular necrosis (positive predictive value of 97%) consists of: a short calcar segment attached to the articular surface (metaphyseal extension < 8 mm), disruption of the medial hinge (> 2 mm displacement), and an anatomic neck fracture pattern (separation of the articular segment from the tuberosities).

Patients undergoing total elbow arthroplasty must adhere to strict lifelong weight-lifting restrictions due to the risk of implant failure, bushing wear, and aseptic loosening at the cement-bone interface. The standard recommendation (such as the Mayo Clinic protocol) restricts the patient to a maximum of 5 to 10 pounds for a single event with the operative arm, and 1 to 2 pounds for repetitive activities.

The patient's clinical presentation (dysphagia, shortness of breath, mechanism of injury) is highly suspicious for a posterior sternoclavicular (SC) joint dislocation, which is a surgical emergency if there is mediastinal impingement. While a serendipity view can demonstrate asymmetry, a CT scan of the chest is the gold standard imaging modality to evaluate the exact position of the medial clavicle and its proximity to vital mediastinal structures (trachea, esophagus, great vessels).

This patient has scapulothoracic dissociation, characterized by massive lateral displacement of the scapula with highly associated catastrophic vascular (subclavian or axillary artery) and neurologic (complete brachial plexus avulsion) injuries. Given the absent pulse, the immediate next step must be vascular evaluation via CT angiography or emergent vascular surgery consultation to restore perfusion. Fixing the bone or exploring the plexus immediately takes lower priority to saving the limb from ischemia.

Snapping triceps syndrome typically involves the dynamic subluxation of the ulnar nerve followed by the medial head of the triceps over the medial epicondyle during elbow flexion. This creates a distinct 'double snap' on examination. Treatment often requires ulnar nerve transposition and concurrent resection or management of the prominent medial head of the triceps.

This clinical presentation is classic for Parsonage-Turner Syndrome (idiopathic brachial neuritis). It typically begins with acute, severe shoulder pain that gradually subsides, followed by profound weakness/paralysis of shoulder girdle muscles (commonly involving the long thoracic or suprascapular nerves). The condition is self-limiting in the vast majority of cases. The treatment is primarily supportive with observation, pain management, and physical therapy to maintain ROM.

The optimal position for a shoulder arthrodesis is generally considered to be 20-30 degrees of abduction, 20-30 degrees of forward flexion, and 20-30 degrees of internal rotation. This position allows the hand to reach the mouth (via elbow flexion) and the back pocket/perineum, maximizing the functional workspace for activities of daily living.

Current evidence suggests that waiting 12-18 months or for normal alkaline phosphatase levels is unnecessary and prolongs disability. Early excision (around 4-6 months) is safe and effective as long as the HO demonstrates radiographic maturity (sharp margins and trabecular pattern). Early mobilization, not prolonged immobilization, is crucial postoperatively. Ulnar neurolysis is frequently required due to the global capsular release often needed.

Coracoid impingement occurs when the subscapularis tendon is compressed between the coracoid process and the lesser tuberosity. While the normal coracohumeral distance on an axial MRI or CT scan is typically 8 to 11 mm, a narrowed distance of less than 6 mm (in internal rotation) is considered highly suggestive and diagnostic of coracoid impingement.

This patient has a 'terrible triad' injury of the elbow (elbow dislocation, radial head fracture, and coronoid fracture). The standard surgical sequence proposed by Pugh and McKee is 1) Fixation or replacement of the coronoid (to restore the anterior buttress), 2) Repair or replacement of the radial head (to restore the anterior and lateral column), and 3) Repair of the lateral collateral ligament (LCL) complex to its isometric origin on the lateral epicondyle. MCL repair is rarely necessary unless the elbow remains unstable in extension after the first three steps are completed.

The patient has a posterior shoulder dislocation with a medium-sized reverse Hill-Sachs (anteromedial humeral head) defect. The management algorithm depends on the defect size: <20% can often be managed non-operatively or with simple subscapularis transfer (McLaughlin procedure); 20% to 40% defects are best treated with a modified McLaughlin procedure (transfer of the lesser tuberosity with the attached subscapularis tendon into the defect) to provide structural bone fill and dynamic stabilization; >40-50% defects typically require structural allograft or arthroplasty (hemiarthroplasty or TSA depending on glenoid condition and patient age).

Scapular notching is a common complication following Grammont-style reverse total shoulder arthroplasty, caused by mechanical impingement of the humeral component against the inferior scapular neck during adduction. Techniques to minimize scapular notching include inferior translation of the glenosphere (overhanging the inferior rim by 2-4 mm), inferior tilt of the glenosphere, and using lateralized components (either a lateralized glenosphere or bony-increased offset [BIO] RTSA) to increase clearance between the humeral metaphysis and the scapular neck.

The patient's history and positive lateral pivot shift test are classic for posterolateral rotatory instability (PLRI) of the elbow. PLRI is caused by insufficiency or rupture of the lateral ulnar collateral ligament (LUCL). The LUCL originates on the lateral epicondyle and inserts on the supinator crest of the ulna, acting as the primary restraint to varus and external rotation stress of the elbow.

The patient presents with isolated infraspinatus atrophy and weakness in external rotation, with preserved supraspinatus function (normal abduction). This presentation is characteristic of suprascapular nerve compression at the spinoglenoid notch. Compression at the more proximal suprascapular notch (beneath the transverse scapular ligament) would typically affect both the supraspinatus and infraspinatus, leading to weakness in both abduction and external rotation. A paralabral cyst (often associated with posterior SLAP tears in overhead athletes) is a common cause of compression at the spinoglenoid notch.

A 'J-sign' on an MR arthrogram coronal oblique view is pathognomonic for a Humeral Avulsion of the Glenohumeral Ligament (HAGL) lesion. Normally, the inferior glenohumeral ligament (IGHL) forms a U-shaped dependent pouch. When it avulses from its humeral attachment, the contrast extends inferiorly down the humeral shaft, converting the 'U' shape into a 'J' shape. Arthroscopically, this exposes the bare muscle belly of the subscapularis.

The lateral antebrachial cutaneous nerve (LABCN), which is the terminal sensory branch of the musculocutaneous nerve, is the most commonly injured nerve during a single-incision anterior approach for distal biceps tendon repair. It exits laterally from beneath the biceps muscle belly and courses distally in the subcutaneous tissue, making it highly susceptible to injury or retraction neuropraxia. In contrast, the posterior interosseous nerve (PIN) is more at risk during a two-incision approach or if dissection proceeds too far radially or if retractors are placed aggressively against the radius.

Fractures of the anteromedial facet of the coronoid (O'Driscoll Type 2) are pathognomonic for a varus posteromedial rotatory instability mechanism. As the elbow undergoes varus stress, the anteromedial facet of the coronoid impacts the medial trochlea, causing the fracture. This mechanism inevitably causes rupture of the lateral collateral ligament (LCL) complex from the lateral epicondyle. Treatment often requires fixation of the anteromedial facet (to restore the medial buttress) and repair of the LCL.

The normal glenopolar angle (GPA) is between 30 to 45 degrees. A severely decreased GPA (< 22 degrees) indicates significant rotational malalignment of the glenoid fragment relative to the scapular body, which alters rotator cuff biomechanics and glenohumeral kinematics, leading to poor clinical outcomes. Therefore, a GPA < 22 degrees is a primary indication for open reduction and internal fixation of a scapular neck fracture. Other relative indications include medial translation > 20 mm, or angular displacement > 40 degrees.

Little Leaguer's elbow encompasses a spectrum of injuries in the skeletally immature overhead athlete, most classically medial epicondyle apophysitis. The biomechanical mechanism is repetitive valgus overload during the throwing motion, which creates excessive tensile stress across the medial elbow structures (causing traction apophysitis of the medial epicondyle) and simultaneous compressive stress across the lateral radiocapitellar joint (which can lead to osteochondritis dissecans of the capitellum).

In the setting of a reverse total shoulder arthroplasty for a proximal humerus fracture, healing of the greater tuberosity is highly correlated with improved clinical outcomes. Because the deltoid is highly tensioned and mechanically advantaged by the RTSA construct, active forward elevation is generally preserved even if the tuberosities resorb. However, failure of the greater tuberosity (and attached infraspinatus/teres minor) to heal results in a significant deficit in active external rotation and lower patient satisfaction scores.

This describes a Neer Type IIA distal clavicle fracture. The fracture occurs medial to the coracoclavicular (CC) ligaments. The ligaments remain intact and attached to the distal fragment, pulling it inferiorly, while the proximal fragment is displaced superiorly by the pull of the trapezius and SCM muscles. This significant displacement and mechanical instability lead to a very high rate of non-union (up to 30-40%) if treated non-operatively, making surgery the standard of care for displaced Type II distal clavicle fractures.

Posterior sternoclavicular dislocations are orthopedic emergencies because of the proximity to critical mediastinal structures (trachea, esophagus, great vessels). Up to 30% are associated with complications such as pneumothorax or vascular injury. Because attempts at reduction can exacerbate a pre-existing occult vascular tear or cause a new one, closed reduction must be performed in the operating room under general anesthesia with a cardiothoracic surgeon readily available. K-wire fixation across the SC joint is strictly contraindicated due to the high risk of fatal wire migration.

Pectoralis major ruptures almost exclusively occur during eccentric loading, most commonly the bench press. Due to the 180-degree twist of the pectoralis major tendon at its insertion, the inferior fibers of the sternocostal head insert most superiorly on the humerus. During the eccentric phase of a bench press (shoulder extended, abducted, externally rotated), the inferior (sternal) fibers are placed under maximal stretch and tension, causing them to rupture first, followed by the superior (clavicular) head in a complete tear.

Adhesive capsulitis (frozen shoulder) is a fibrotic condition characterized by global restriction of glenohumeral motion. The core pathology lies in the rotator interval and the coracohumeral ligament (CHL), where there is a dense proliferation of fibroblasts and myofibroblasts. This process is driven by fibrogenic cytokines, most notably transforming growth factor-beta (TGF-beta) and platelet-derived growth factor (PDGF). Unlike rheumatoid arthritis, it is primarily a fibrotic, rather than highly inflammatory (IL-1, TNF-alpha), disease.

Coronal shear fractures of the distal humerus are classified by Bryan and Morrey. Type I (Hahn-Steinthal) is a large osseous fragment containing the capitellum. Type II (Kocher-Lorenz) is a purely articular cartilage sleeve avulsion with very little bone. Type III (Broberg-Morrey) is a severely comminuted capitellum. McKee modified the classification by adding Type IV, which describes a coronal shear fracture that involves the capitellum AND the lateral aspect of the trochlea (often termed a 'capitellotrochlear' fracture). Recognition is critical because Type IV fractures require fixation of the trochlear component to prevent late instability or arthrosis.

The patient has 'snapping scapula syndrome' (scapulothoracic crepitus). It is often caused by an inflamed scapulothoracic bursa or bony abnormalities (like an osteochondroma or prominent Luschka's tubercle) at the superomedial angle of the scapula, where it articulates with the ribs. When non-operative treatment fails, the standard surgical intervention is an open or arthroscopic resection of the superomedial angle of the scapula along with excision of the inflamed interposing bursa.

This patient has an acute triceps tendon rupture, characterized by the 'fleck sign' (avulsion of a piece of the olecranon). Surgical repair is indicated for complete tears to restore active extension power. The triceps tendon should be reattached to its anatomic footprint on the olecranon via transosseous tunnels or suture anchors. A critical technical pearl is to tie the sutures with the elbow in approximately 90 degrees of flexion; tying them in full extension can overtension the repair, resulting in a profound permanent loss of elbow flexion.

Surgical excision of heterotopic ossification (HO) is technically demanding and carries a risk of recurrence. The classic criteria for safe excision include 1) neurologic recovery or stability, 2) normal serum alkaline phosphatase levels, and 3) radiographic evidence of mature bone with a clear trabecular pattern and sharp cortical margins. Historically, waiting 12-18 months was recommended, but modern literature suggests earlier excision (typically around 6 months) is safe as long as the bone appears radiographically mature and the patient is neurologically stable. Postoperative prophylaxis with radiation or indomethacin is critical.

The patient has an Essex-Lopresti lesion (radial head fracture, disruption of the distal radioulnar joint [DRUJ], and tearing of the longitudinal interosseous membrane). In this longitudinal instability pattern, the radial head acts as the critical secondary stabilizer preventing proximal migration of the radius. Therefore, simple radial head excision (or the use of non-structural silicone implants that cannot resist axial loads) is absolutely contraindicated, as it will lead to proximal radial migration, ulnocarpal impaction, and severe wrist and elbow dysfunction. A rigid metallic radial head replacement is required.

In a terrible triad injury, if the elbow remains unstable after restoring the anterior and lateral columns (coronoid, radial head, and LUCL), the next step in the treatment algorithm is repair of the medial collateral ligament (MCL). A hinged external fixator is reserved for persistent instability after MCL repair.

According to the Sirveaux classification for scapular notching, Grade 1 involves the scapular pillar, Grade 2 reaches the inferior screw, Grade 3 extends beyond the inferior screw, and Grade 4 extends to the central peg. Therefore, this is Grade 3.

The patient has an axillary nerve injury, which is a common complication of proximal humerus fractures. The axillary nerve innervates both the deltoid and the teres minor muscles.

Single-dose radiation therapy (typically 700 cGy) administered within 48-72 hours post-operatively is highly effective for preventing heterotopic ossification. Alternatively, a 3- to 6-week course of Indomethacin (e.g., 75mg sustained release daily) can be used.

For reverse Hill-Sachs defects between 20% and 40%, transfer of the lesser tuberosity and subscapularis tendon into the defect (Neer modification of the McLaughlin procedure) is indicated. Defects >40% typically require allograft reconstruction or arthroplasty.

The lateral antebrachial cutaneous nerve (LABCN) exits between the biceps and brachialis and is the most commonly injured nerve during a single-incision anterior distal biceps repair due to lateral retraction.

Superior capsular reconstruction (SCR) is designed to restore the static restraint to superior translation of the humeral head, stabilizing the fulcrum for the remaining intact muscles (deltoid) to elevate the arm.

The pectoralis major functions primarily in internal rotation, adduction, and forward flexion of the arm. Ruptures typically cause marked weakness in resisted internal rotation and adduction.

Injury to the spinal accessory nerve paralyzes the trapezius, causing lateral winging of the scapula that worsens with abduction. Medial winging is typically caused by long thoracic nerve injury (serratus anterior).

Little Leaguer's shoulder represents an epiphysiolysis of the proximal humerus due to repetitive rotational stress. The primary treatment is absolute rest from throwing for typically 3 months until radiographic resolution.

Posterolateral rotatory instability (PLRI) of the elbow presents with a positive pivot-shift test and is caused by deficiency or attenuation of the lateral ulnar collateral ligament (LUCL).

Compression of the suprascapular nerve at the spinoglenoid notch affects only the infraspinatus muscle. Compression more proximally at the suprascapular notch would affect both the supraspinatus and infraspinatus.

In patients with subcritical glenoid bone loss (<15-20%) and an off-track (engaging) Hill-Sachs lesion, arthroscopic Bankart repair combined with remplissage is indicated. This fills the humeral defect with the infraspinatus tendon, preventing engagement during abduction and external rotation.

For a reverse Hill-Sachs lesion involving 20% to 40% of the articular surface, the modified McLaughlin procedure is indicated. It involves transferring the lesser tuberosity and attached subscapularis into the anteromedial humeral defect to restore stability.

The double-arc sign on a lateral elbow radiograph indicates a McKee Type IV coronal shear fracture. The two arcs represent the subchondral bone of the capitellum and the lateral ridge of the trochlea, necessitating operative fixation.

The lateral antebrachial cutaneous nerve (LABC) is the most commonly injured nerve during a single-incision anterior approach for distal biceps repair. It exits between the biceps and brachialis and supplies sensation to the lateral forearm.

A positive Hornblower's sign and teres minor fatty atrophy indicate profound loss of active external rotation. A standard RTSA alone will not restore external rotation, so a combined RTSA with a latissimus dorsi transfer (L'Episcopo) is required.

Injury to the spinal accessory nerve, often iatrogenic from posterior cervical triangle surgery, denervates the trapezius. This results in lateral scapular winging and weakness in shoulder abduction/elevation.

This is an Essex-Lopresti lesion, characterized by longitudinal radioulnar dissociation due to disruption of the interosseous membrane. Radial head excision is contraindicated in these injuries, as the radial head is a vital secondary stabilizer to proximal migration.

A cyst at the spinoglenoid notch compresses the suprascapular nerve after it has already innervated the supraspinatus. This leads to isolated denervation of the infraspinatus, resulting in weakness in external rotation only.

Pectoralis major ruptures typically occur during eccentric loading. The sternal head is most commonly injured, usually tearing near or at its tendinous insertion on the humerus because it is under maximal tension when the arm is extended and abducted.

The patient is describing posterolateral rotatory instability (PLRI) of the elbow. The lateral ulnar collateral ligament (LUCL) is the primary static restraint to PLRI.

Valgus extension overload in throwers causes impingement of the olecranon in the olecranon fossa. This repetitive microtrauma characteristically leads to osteophyte formation at the posteromedial tip of the olecranon.

Adhesive capsulitis (frozen shoulder) classically presents with a severe loss of passive and active external rotation with the arm at the side. This is primarily due to contracture of the coracohumeral ligament and the rotator interval.

In elderly patients with poor bone quality, tuberosity healing is unreliable. RTSA is favored because it medializes and distalizes the center of rotation, maximizing the deltoid moment arm to provide forward elevation even if the tuberosities fail to heal.

A Rockwood Type V AC joint separation is defined by >100% (to 300%) superior displacement of the distal clavicle compared to the contralateral side. This involves disruption of the AC and CC ligaments with significant deltotrapezial fascial stripping.

Transolecranon fracture-dislocations involve the ulna breaking and the forearm displacing anteriorly, often sparing the collateral ligaments. Restoring the exact dimensions of the greater sigmoid notch with a dorsal contour plate is critical to restore joint congruence and stability.

Incarceration of the medial epicondyle fragment within the elbow joint is an absolute indication for surgery. Other relative indications include open fracture, significant displacement (>5-15 mm depending on criteria), or gross valgus instability.

A floating shoulder may be treated nonoperatively if minimally displaced. Surgical fixation is indicated for significant deformity, generally defined as >1 cm of medial translation or >40 degrees of angular displacement of the glenoid/scapular neck.

Linked total elbow arthroplasties are highly susceptible to early wear and aseptic loosening. Patients are typically restricted to a lifetime lifting limit of 1 pound repetitively and 5 to 10 pounds for a single event.

In patients over 40-50 years of age, especially laborers, biceps tenodesis is highly preferred over SLAP repair. SLAP repairs in older patients have a high failure rate and frequently lead to postoperative stiffness.

Lateral epicondylitis primarily involves microtearing and degenerative changes (angiofibroblastic hyperplasia) of the origin of the extensor carpi radialis brevis (ECRB) tendon.

The lateral ulnar collateral ligament (LUCL) is the primary restraint to varus and external rotation stress, preventing PLRI. Disruption typically occurs from a fall on an outstretched hand with the arm in supination.

Reverse TSA medializes and distalizes (inferiorly moves) the center of rotation. This increases the deltoid moment arm and restores adequate tension to the muscle, compensating for the deficient rotator cuff.

Radioulnar synostosis (or heterotopic ossification) is historically more common with the two-incision technique due to muscle-splitting near the interosseous membrane. The single-incision technique carries a higher risk of lateral antebrachial cutaneous and PIN injuries.

Remplissage involves tenodesis of the infraspinatus into the Hill-Sachs defect. This prevents the defect from engaging the anterior glenoid rim by effectively converting it into an extra-articular lesion.

Varus posteromedial rotatory instability (VPMRI) typically involves an anteromedial facet fracture of the coronoid accompanied by disruption of the lateral collateral ligament complex. It results from a varus force applied to the elbow combined with axial loading.

Recent microvascular studies demonstrate that the posterior humeral circumflex artery provides the main blood supply to the humeral head (posterior, superior, and inferior aspects). Historically, the anterior circumflex (arcuate artery) was incorrectly thought to be the primary supply.

Compression of the suprascapular nerve at the spinoglenoid notch affects only the motor branch to the infraspinatus, causing isolated external rotation weakness. Proximal compression at the suprascapular notch would affect both the supraspinatus and infraspinatus.

Early active range of motion is crucial. Performing extension in pronation tightens the medial structures and relies on the intact medial soft tissue envelope to protect the repaired lateral structures, preventing posterolateral subluxation.

Rockwood Type V injuries involve severe disruption of both the AC and coracoclavicular (CC) ligaments with >100% superior displacement. Surgical reconstruction primarily targets the conoid and trapezoid (CC) ligaments to restore vertical stability.

A Walch B2 glenoid is defined by biconcavity due to asymmetric posterior wear, often accompanied by posterior subluxation of the humeral head. This presents a high risk of glenoid component loosening if not addressed with eccentric reaming or augmented components.

The axillary nerve is most frequently injured in anterior shoulder dislocations due to its anatomical course near the inferior capsule. It innervates the deltoid and teres minor, leading to weakness in shoulder abduction and external rotation.

A coronal shear fracture of the capitellum that extends medially to involve the lateral trochlear ridge is classified as a Type IV fracture according to the McKee modification. Recognizing this medial extension is crucial for surgical planning and ensuring adequate fixation.

The long head of the biceps tendon, located within the bicipital groove, serves as a crucial anatomical landmark that separates the superior border of the subscapularis (lesser tuberosity) from the supraspinatus (greater tuberosity).

Pectoralis major ruptures almost exclusively occur in males doing heavy resistance training, most commonly failing at the tendinous insertion onto the lateral lip of the bicipital groove. Surgical repair to the humeral footprint is recommended to restore peak torque.

"Little League Elbow" represents a medial epicondyle apophysitis caused by repetitive valgus stress during the late cocking and early acceleration phases of pitching. This creates immense tension on the medial structures, causing microtrauma to the open apophysis.