Category Archives: Musculoskeletal Imaging

Hand Oblique
4
Feb

Overview

The oblique hand radiograph rotates the hand approximately 45 degrees to profile metacarpals and phalanges. This projection reduces overlap and improves detection of fractures. It is routinely obtained with PA and lateral views for comprehensive assessment.

Technique

Rotate the hand laterally about 45 degrees and center the detector to the third metacarpal. Ensure consistent rotation and immobilize the hand to minimize motion. Use appropriate collimation to include the entire hand.

Clinical Indications

Oblique hand views are indicated for trauma and suspected occult fractures. They help visualize metacarpal neck and shaft injuries and joint subluxations. Correlate with clinical exam and consider CT for complex fractures.

Image Assessment

Inspect cortical margins for fracture lines and evaluate joint congruity. Assess for rotational deformity and malalignment. Report findings and recommend orthopedic follow up when indicated.

Hand Lateral
4
Feb

Overview

The lateral hand radiograph evaluates sagittal alignment of the digits and metacarpals. The hand is positioned with fingers superimposed and the thumb slightly abducted. This view is useful for assessing displacement and rotational deformity.

Technique

Place the hand in true lateral with the ulnar side down and ensure fingers are aligned. Use a short exposure time to minimize motion and include the wrist when indicated. Immobilize the hand for reproducible positioning.

Clinical Indications

Lateral hand is indicated for trauma suspected dislocation and evaluation of foreign bodies. It complements PA and oblique views for comprehensive assessment. It is essential for preoperative planning in complex injuries.

Image Assessment

Evaluate dorsal or volar displacement of fractures and inspect for rotational malalignment. Assess joint congruity and soft tissue swelling. Document findings relevant to surgical planning and rehabilitation.

Finger PA
4
Feb

Overview

The PA finger radiograph evaluates phalanges and interphalangeal joints for fractures and dislocations. The finger is placed flat on the detector with slight separation from adjacent digits. This targeted view provides high resolution assessment of small bone injuries.

Technique

Center the detector to the affected digit and collimate tightly to reduce dose. Use a small focal spot and appropriate exposure for fine detail. Immobilize the finger and use positioning aids for comfort.

Clinical Indications

PA finger is indicated for trauma localized pain and suspected foreign body. It helps detect tuft fractures avulsions and joint subluxations. Additional oblique and lateral views complement the PA projection.

Image Assessment

Inspect cortical margins for fracture lines and evaluate joint spaces for subluxation. Look for soft tissue swelling and foreign bodies. Report findings and recommend follow up imaging if healing assessment is required.

Finger Oblique
4
Feb

Overview

The oblique finger radiograph rotates the digit to separate cortical margins and reveal fracture lines. This projection reduces overlap and enhances detection of small fractures. It is routinely obtained with PA and lateral views for complete evaluation.

Technique

Rotate the finger approximately 45 degrees and center the detector to the affected phalanx. Use tight collimation and a small focal spot for optimal detail. Ensure patient comfort and immobilize the digit to minimize motion.

Clinical Indications

Oblique finger views are indicated for trauma and suspected occult fractures. They help visualize avulsion fragments and joint surface involvement. Correlate with clinical findings and consider follow up radiographs for healing.

Image Assessment

Evaluate cortical continuity and joint alignment and look for small intra articular fragments. Assess soft tissue swelling and tendon avulsion sites. Document findings relevant to orthopedic management.

Finger Lateral
4
Feb

Overview

The lateral finger radiograph profiles the phalanges to assess displacement and angulation. The digit is positioned true lateral with adjacent fingers separated. This view is essential for evaluating dorsal or volar displacement and joint alignment.

Technique

Place the finger in true lateral with the plane of interest parallel to the detector. Use a small focal spot and immobilize the digit to reduce motion. Collimate tightly to minimize dose and improve image quality.

Clinical Indications

Lateral finger is indicated for trauma suspected dislocation and assessment of angulation. It complements PA and oblique views for comprehensive evaluation. It guides management decisions for reduction and fixation.

Image Assessment

Assess dorsal or volar displacement and measure angulation when present. Evaluate joint congruity and soft tissue swelling. Report findings and recommend orthopedic consultation when indicated.

Pelvis AP
4
Feb

Overview

The AP pelvis radiograph evaluates the pelvic ring hips and proximal femora for fractures and degenerative disease. The patient lies supine or stands with legs internally rotated to profile the femoral necks. This view is a cornerstone for trauma and orthopedic assessment.

Technique

Center the detector to the mid pelvis and ensure equal leg rotation to reduce foreshortening. Use appropriate exposure to penetrate the pelvis and include the iliac crests to proximal femora. Immobilize the patient when trauma is suspected.

Clinical Indications

AP pelvis is indicated for trauma hip pain and preoperative planning. It assesses pelvic ring stability and hip joint space. Additional inlet outlet and Judet views may be required for complex pelvic fractures.

Image Assessment

Evaluate pelvic symmetry sacroiliac joints and hip joint spaces. Inspect for cortical disruption and displacement of the pelvic ring. Document fracture patterns and recommend CT for detailed surgical planning.

Shoulder AP Internal External
4
Feb

Overview

AP shoulder views in internal and external rotation assess the glenohumeral joint and proximal humerus. External rotation demonstrates the greater tuberosity while internal rotation profiles the lesser tuberosity. These complementary views aid in detecting fractures and dislocations.

Technique

Position the patient upright or supine with the detector centered to the shoulder. Obtain external rotation with the palm facing forward and internal rotation with the back of the hand on the hip. Use appropriate collimation to include the scapulohumeral joint.

Clinical Indications

AP shoulder views are indicated for trauma pain and suspected dislocation or fracture. They evaluate joint congruity and osseous integrity. Additional views such as Grashey or axillary may be required for detailed assessment.

Image Assessment

Assess humeral head position relative to the glenoid and inspect tuberosities for fracture. Evaluate joint space and acromioclavicular relationship. Correlate with clinical exam and consider CT for complex fractures.

Hip AP
4
Feb

Overview

The AP hip radiograph focuses on the proximal femur and acetabulum to assess fractures and degenerative change. The patient lies supine with the leg internally rotated to profile the femoral neck. This view is essential for hip pain and preoperative planning.

Technique

Center the detector to the hip joint and internally rotate the leg approximately 15 degrees. Include the acetabulum and proximal femur in the field and use appropriate exposure. Immobilize the limb to reduce motion artifact.

Clinical Indications

AP hip is indicated for trauma suspected fracture and osteoarthritis assessment. It helps detect femoral neck fractures and joint space narrowing. Additional lateral or cross table views may be required for occult injuries.

Image Assessment

Assess cortical continuity femoral head sphericity and joint space. Look for subcapital fractures and osteophyte formation. Report findings relevant to orthopedic management and surgical planning.

Shoulder Grashey AP Oblique
4
Feb

Overview

The Grashey AP oblique shoulder view aligns the glenoid en face to evaluate joint space and glenoid rim. The patient is rotated approximately 35 to 45 degrees toward the affected side. This view is valuable for assessing glenoid fractures and degenerative change.

Technique

Rotate the patient toward the affected shoulder and center the detector to the glenohumeral joint. Use a true oblique to profile the glenoid without overlap from the humeral head. Ensure consistent exposure and include the scapular neck.

Clinical Indications

Grashey view is indicated for suspected glenoid fracture instability and arthritis. It provides accurate assessment of joint space narrowing and rim defects. It complements standard AP and axillary views for comprehensive shoulder evaluation.

Image Assessment

Inspect the glenoid rim for fracture and the joint space for narrowing or osteophytes. Evaluate humeral head position and subchondral changes. Report findings relevant to surgical planning and instability assessment.

Hip Frog Leg Lateral
4
Feb

Overview

The frog leg lateral hip view positions the hip in flexion abduction and external rotation to profile the femoral head and neck. It is useful for detecting slipped capital femoral epiphysis and femoral neck fractures. This projection complements the AP hip for comprehensive assessment.

Technique

Flex the hip and knee and abduct the thigh with the sole of the foot against the opposite leg. Center the detector to the hip and use appropriate exposure for the proximal femur. Ensure patient comfort and avoid excessive rotation.

Clinical Indications

Frog leg lateral is indicated for pediatric hip disorders trauma and suspected femoral neck pathology. It provides a lateral perspective of the femoral head neck and greater trochanter. Alternative lateral techniques are used when positioning is limited.

Image Assessment

Evaluate the relationship of the femoral head to the neck and look for epiphyseal displacement. Assess cortical integrity and joint congruity. Document findings and recommend orthopedic referral when indicated.