Calcanium Both AP/LAT (DC) at Dr. Essa Lab

Calcanium Both AP/LAT (DC) at Dr. Essa Lab

The Calcanium Both AP/LAT (DC) is a specialized, high-resolution digital radiography examination designed to evaluate the calcaneus (heel bone) of both feet. The calcaneus is the largest of the tarsal bones in the human foot, serving as the foundational anchor for the heel, bearing the primary impact of body weight during walking, running, and jumping. It acts as a crucial lever for the powerful calf muscles via the Achilles tendon. Given its biomechanical significance, any pathology, fracture, or inflammatory condition affecting the calcaneus can severely compromise mobility and quality of life. Dr. Essa Laboratory & Diagnostic Centre, a pioneer in diagnostic services in Pakistan, utilizes state-of-the-art Digital Radiography (DC/Direct Capture) technology to produce exceptionally clear, high-contrast images of both heel bones. This bilateral imaging approach is invaluable, as it allows consultant radiologists and orthopedic specialists to compare the symptomatic heel directly with the contralateral side, ensuring an accurate and comprehensive diagnosis.

Digital Radiography (DC) represents a significant technological leap over traditional film-based X-rays. By employing advanced flat-panel detectors, the system directly converts X-ray photons into digital signals. This process eliminates the image degradation associated with older chemical processing methods, resulting in superior spatial resolution and a wider dynamic range. For patients at Dr. Essa Lab, this translates to a faster procedure, significantly reduced radiation exposure, and highly detailed images that capture subtle bone trabeculae, micro-fractures, and early soft tissue calcifications. The bilateral Anteroposterior (AP) or axial view combined with the Lateral (LAT) view provides a comprehensive three-dimensional perspective of the calcaneal anatomy. The lateral view is essential for assessing the overall shape of the heel, the subtalar joint, and the surrounding soft tissues, while the AP/axial view provides a clear look at the body of the calcaneus, the sustentaculum tali, and the calcaneocuboid joint. This dual-view, bilateral examination is the clinical gold standard for investigating acute heel trauma, chronic plantar heel pain, and suspected structural deformities.

Clinical Procedure: What to Expect

Patient Preparation

One of the primary advantages of the Calcanium Both AP/LAT (DC) digital X-ray is that it requires minimal preparation, making it a highly convenient diagnostic test for patients experiencing acute pain or mobility issues. To ensure the highest image quality and patient safety, Dr. Essa Lab recommends the following preparation guidelines:

• No Fasting Required: Patients can eat, drink, and take their regular medications as usual before the test.
• Appropriate Clothing: It is recommended to wear loose, comfortable clothing that can easily be rolled up to the knee. Alternatively, patients may be asked to change into a comfortable diagnostic gown.
• Removal of Metal Objects: All metallic items, including ankle bracelets, toe rings, shoes, socks, and pants with metal zippers or buttons, must be removed from the lower extremities, as metal can cause artifacts on the digital images.
• Pregnancy Notification: Female patients must inform the radiographer if they are pregnant or suspect they might be. Although the radiation dose to the foot is extremely low, special shielding protocols or alternative imaging modalities may be considered to protect the developing fetus.
• Previous Imaging: Patients are encouraged to bring any previous X-rays, MRI scans, or clinical reports related to their heel pain for comparative analysis.

During the Procedure

Upon entering the digital radiography suite at Dr. Essa Lab, patients are welcomed by a certified, highly experienced radiographer. The procedure is entirely non-invasive, painless, and typically completed within 10 to 15 minutes. The process is conducted with the utmost care to minimize discomfort, especially for patients suffering from acute heel trauma:

• Positioning for the Lateral View: The patient is typically asked to lie on the examination table on their side (lateral decubitus position) or sit comfortably with the lateral aspect of the foot in contact with the digital detector. The opposite leg is positioned out of the way. The radiographer carefully aligns the heel to capture a true lateral profile of the calcaneus.
• Positioning for the AP/Axial View: For the axial or anteroposterior projection, the patient sits on the table with the leg fully extended. The foot is dorsiflexed (pulled back toward the body) using a supportive strap if necessary, and the X-ray tube is angled precisely to project the calcaneus clearly without superimposition of the ankle structures.
• Bilateral Imaging: The entire process is repeated for both the left and right heels. This bilateral acquisition is critical for comparative anatomy, helping the radiologist distinguish normal anatomical variants from true pathology.
• Radiation Safety: A lead apron is placed over the patient’s pelvic and abdominal region to shield vital organs from scattered radiation, adhering strictly to the ALARA (As Low As Reasonably Achievable) safety principle.
• Image Acquisition: The radiographer steps behind a protective screen to operate the digital console. The patient must remain completely still for a fraction of a second while the exposure is made to prevent motion blur. The digital images appear instantly on the radiographer’s monitor, allowing for immediate quality verification.

When is a Calcanium Both AP/LAT (DC) Performed?

Evaluating Acute Heel Trauma and Suspected Fractures

A primary clinical indication for ordering a Calcanium Both AP/LAT (DC) is acute trauma to the heel, most commonly resulting from a fall from a height (axial loading) or a high-impact motor vehicle accident. Calcaneal fractures can be highly complex, often involving the articular surfaces of the subtalar joint. Physicians request this bilateral digital X-ray to rapidly assess the structural integrity of the heel bone, measure critical anatomical angles (such as Böhler’s angle and the Angle of Gissane), and determine whether the fracture is displaced, non-displaced, intra-articular, or extra-articular. Bilateral imaging is crucial here, as it allows the orthopedic surgeon to use the uninjured foot as a patient-specific anatomical template for surgical planning and reconstruction.

Investigating Chronic Heel Pain and Plantar Fasciitis

Chronic heel pain is an incredibly common complaint in clinical practice, often caused by plantar fasciitis, a degenerative condition of the thick band of tissue that supports the arch of the foot. When conservative treatments fail to alleviate symptoms, or if the clinical presentation is atypical, a Calcanium Both AP/LAT (DC) is performed. The digital images can clearly demonstrate the presence of an inferior calcaneal spur (osteophyte) at the plantar fascia attachment site. While the spur itself is often a secondary finding rather than the direct cause of pain, visualizing it helps confirm chronic tension at the enthesis and rules out other bone-related causes of heel pain, such as stress fractures or bone cysts.

Assessing Achilles Tendon Pathology and Insertional Calcifications

The Achilles tendon inserts directly onto the posterior aspect of the calcaneus. Chronic strain, overuse, or systemic inflammatory conditions can lead to insertional Achilles tendinopathy, retrocalcaneal bursitis, or Haglund’s deformity (a symptomatic bony enlargement of the posterosuperior aspect of the calcaneus, often called a “pump bump”). A Calcanium Both AP/LAT (DC) provides high-resolution visualization of the posterior calcaneal cortex and the adjacent soft tissues. This allows radiologists to detect insertional calcifications, thickening of the Achilles tendon insertion, and structural alterations in the posterosuperior calcaneal border, guiding targeted physical therapy or surgical intervention.

Diagnosing Pediatric Heel Pain (Sever’s Disease)

In pediatric and adolescent patients, particularly young athletes, heel pain is frequently caused by calcaneal apophysitis, commonly known as Sever’s disease. This condition is an inflammation of the growth plate (apophysis) of the calcaneus due to repetitive microtrauma from the pulling of the Achilles tendon. A bilateral digital X-ray of the calcaneus is highly valuable in these cases. It helps clinicians evaluate the degree of fragmentation and sclerosis of the calcaneal apophysis, compare the symptomatic side with the asymptomatic side, and confidently rule out more serious pediatric conditions such as osteomyelitis, bone tumors, or acute fractures.

Monitoring Post-Surgical Healing and Bone Alignment

For patients who have undergone surgical fixation of a calcaneal fracture or corrective surgery for structural foot deformities, the Calcanium Both AP/LAT (DC) is an indispensable tool for post-operative monitoring. Orthopedic surgeons utilize serial digital X-rays to assess the progression of bone healing (callus formation), monitor the alignment of the calcaneus, verify the stable positioning of surgical hardware (such as plates, screws, or pins), and detect early signs of post-traumatic arthritis in the subtalar joint. The low-dose, high-efficiency nature of digital radiography makes it ideal for these repeated follow-up examinations.

What Does a Calcanium Both AP/LAT (DC) Detect?

The high-definition digital images produced during a Calcanium Both AP/LAT (DC) scan at Dr. Essa Lab allow radiologists to identify a wide array of acute, chronic, and degenerative conditions. Specific findings detectable through this examination include:

• Calcaneal Fractures: Detection of cortical breaks, displacement, and comminution of the heel bone.
• Intra-articular Extension: Evaluation of whether a fracture line extends into the subtalar or calcaneocuboid joint surfaces.
• Böhler’s Angle Reduction: Measurement of this key angle (normal is 20 to 40 degrees); a decreased angle indicates a depressed calcaneal fracture.
• Angle of Gissane Alterations: Assessment of the critical structural relationship of the subtalar joint facets.
• Stress Fractures: Visualization of subtle, hazy bands of increased bone density (sclerosis) indicating healing stress fractures in athletes.
• Plantar Calcaneal Spurs: Bony projections arising from the plantar aspect of the calcaneal tuberosity.
• Posterior Calcaneal Spurs: Bony spurs at the insertion site of the Achilles tendon.
• Haglund’s Deformity: Prominence of the posterosuperior border of the calcaneus associated with retrocalcaneal bursitis.
• Subtalar Joint Space Narrowing: A sign of osteoarthritis or post-traumatic degenerative joint disease.
• Calcaneocuboid Joint Osteoarthritis: Joint space narrowing, subchondral sclerosis, and osteophyte formation.
• Calcaneal Apophysitis (Sever’s Disease): Increased density, sclerosis, or fragmentation of the pediatric heel growth plate.
• Unicameral Bone Cysts: Well-defined, benign lytic lesions within the calcaneus, often presenting as incidental findings.
• Osteomyelitis: Signs of bone infection, including localized bone destruction (lysis) and periosteal reaction.
• Osteopenia or Osteoporosis: Generalized reduction in bone density and thinning of the calcaneal trabeculae.
• Paget’s Disease of Bone: Characterized by cortical thickening, coarse trabeculation, and bone enlargement.
• Rheumatoid Arthritis Involvement: Marginal erosions and periarticular osteopenia in the tarsal joints.
• Ankylosing Spondylitis Enthesopathy: Erosions and fluffy periosteal new bone formation at the Achilles insertion.
• Soft Tissue Swelling: Increased density in the pre-Achilles fat pad (Kager’s fat pad) indicating localized inflammation or bursitis.
• Achilles Tendon Calcification: Calcium deposits within the substance of the distal Achilles tendon.
• Foreign Bodies: Detection of radiopaque foreign objects embedded in the plantar soft tissues of the heel.
• Surgical Hardware Integrity: Assessment of the position, intactness, and stability of orthopedic implants.
• Non-Union or Delayed Union: Failure of fractured bone fragments to unite within the expected healing timeframe.
• Avascular Necrosis: Rare localized areas of bone death characterized by increased density and structural collapse.
• Congenital Tarsal Coalition: Abnormal bony or fibrous bridging between the calcaneus and other tarsal bones.

Turnaround Time and Report Access at Dr. Essa Lab

Dr. Essa Laboratory & Diagnostic Centre is widely recognized for its efficiency, clinical accuracy, and patient-centric services. Understanding that timely diagnostic results are crucial for effective treatment planning, Dr. Essa Lab has optimized its digital radiography workflow. Once your Calcanium Both AP/LAT (DC) scan is completed, the high-resolution digital images are instantly uploaded to the secure Picture Archiving and Communication System (PACS). A highly qualified consultant radiologist reviews the bilateral views, performs precise anatomical measurements, and compiles a detailed diagnostic report. The finalized report, accompanied by high-quality digital prints or CD copies of the images, is typically available within a few hours of the procedure. Patients and referring physicians can conveniently access, view, and download the reports and digital images online through the secure Dr. Essa Lab web portal and mobile application, eliminating the need for a second visit to the center.

Calcanium Both AP/LAT (DC) Findings Overview

Structure / Parameter Evaluated	Normal Findings	Possible Abnormal Findings
Calcaneal Cortex & Trabeculae	Intact, smooth cortical margins; normal, organized trabecular bone pattern.	Cortical disruption (fracture), lytic lesions, bone cysts, or coarse trabeculation.
Böhler’s Angle	Typically between 20° and 40° on the lateral view.	Reduced angle (< 20°), indicating a depressed calcaneal fracture.
Subtalar Joint Space	Preserved, uniform joint space with smooth articular margins.	Joint space narrowing, subchondral sclerosis, osteophytes (osteoarthritis).
Plantar Aspect (Tuberosity)	Smooth bone contour at the attachment of the plantar fascia.	Plantar calcaneal spur (osteophyte) formation, cortical erosion.
Posterior Aspect (Achilles Insertion)	Normal posterosuperior contour; no bony projections.	Haglund’s deformity, posterior spur, insertional calcification.
Calcaneal Apophysis (Pediatric)	Normal development, uniform density appropriate for age.	Increased fragmentation, sclerosis, and widening (Sever’s disease).
Soft Tissues (Kager’s Fat Pad)	Clear, radiolucent triangular fat pad space anterior to the Achilles tendon.	Obliteration of the fat pad, increased density (soft tissue swelling, bursitis).

Note: Diagnostic findings should always be interpreted by a qualified healthcare professional together with the patient’s symptoms, medical history, physical examination, laboratory investigations, previous imaging studies, and other relevant clinical information. Additional investigations or specialist consultation may be recommended depending on the findings.

Why Choose Dr. Essa Lab for Calcanium Both AP/LAT (DC)?

• Legacy of Trust: Serving patients since 1987, Dr. Essa Lab is one of Pakistan’s most trusted diagnostic chains, founded by Prof. Dr. M. Essa Abdulla.
• Advanced Digital Technology: Equipped with state-of-the-art Digital Radiography (DC) systems that deliver exceptional image clarity with minimal radiation dose.
• Expert Radiologists: Reports are interpreted by highly experienced, board-certified consultant radiologists specializing in musculoskeletal imaging.
• Bilateral Comparative Analysis: Standardized protocols for imaging both heels to ensure accurate comparative evaluation.
• ISO Certified Quality: Dr. Essa Lab adheres to strict international quality standards, ensuring reliable and reproducible diagnostic results.
• Convenient Online Reports: Access your digital X-ray images and reports anytime, anywhere via the secure online portal and mobile app.
• Extensive Branch Network: Conveniently located diagnostic centers across Karachi and other major cities, making high-quality imaging highly accessible.
• Patient-Focused Care: Compassionate, professional staff dedicated to ensuring patient comfort, safety, and a seamless diagnostic experience.