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

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

The Calcanium AP/LAT View (DC) at Dr. Essa Lab is a specialized digital X-ray examination designed to capture high-resolution, multi-dimensional images of the calcaneus, commonly known as the heel bone. This diagnostic procedure plays a pivotal role in the clinical evaluation of patients presenting with acute or chronic heel pain, localized swelling, structural deformities, or a history of lower limb trauma. By utilizing advanced Digital Cassette (DC) technology, Dr. Essa Laboratory & Diagnostic Centre in Karachi, Pakistan, provides clinicians with exceptionally clear, high-contrast images that facilitate the rapid and accurate diagnosis of various musculoskeletal pathologies affecting the hindfoot.

The calcaneus is the largest of the tarsal bones and serves as the primary structural foundation of the human heel. It is responsible for transmitting the weight of the body from the talus to the ground and acts as a crucial lever arm for the powerful calf muscles during walking, running, and jumping. Because of its constant exposure to mechanical stress and weight-bearing forces, the calcaneus is highly susceptible to fractures, stress injuries, degenerative changes, and inflammatory conditions. The Calcanium AP/LAT View (DC) protocol consists of two distinct radiographic projections: the Anteroposterior (AP) or axial view, and the Lateral (LAT) view. Together, these orthogonal projections offer a comprehensive, three-dimensional perspective of the calcaneal anatomy, allowing radiologists to evaluate the bone’s cortex, trabecular pattern, articular surfaces, and surrounding soft tissues with clinical precision.

At Dr. Essa Lab, the integration of digital radiography (DC) represents a significant advancement over traditional film-based X-rays. Digital imaging systems utilize highly sensitive photostimulable phosphor plates or flat-panel detectors that capture X-ray photons with remarkable efficiency. This technology allows for immediate image acquisition, eliminating the need for chemical film processing and significantly reducing patient waiting times. Furthermore, the digital format enables consultant radiologists to manipulate image contrast, brightness, and magnification, which enhances the visibility of subtle cortical microfractures, early osteophytes, and soft tissue abnormalities that might otherwise be obscured on conventional radiographs. Most importantly, the superior sensitivity of digital detectors allows for a reduction in the radiation dose required to produce diagnostic-quality images, prioritizing patient safety without compromising diagnostic efficacy.

Clinical Procedure: What to Expect

Patient Preparation

The Calcanium AP/LAT View (DC) is a non-invasive, straightforward diagnostic imaging procedure that requires minimal preparation. To ensure optimal image quality and patient safety, Dr. Essa Lab recommends the following preparation guidelines:

• No fasting or dietary restrictions are required prior to the examination; patients may eat, drink, and take their regular medications as usual.
• Patients are advised to wear loose, comfortable clothing that can easily be rolled up to the knee, allowing unobstructed access to the lower leg and foot.
• All metallic objects, including anklets, toe rings, zippers, snaps, and footwear, must be removed from the target foot and ankle prior to the scan, as metal can cause significant artifacts on digital X-ray images.
• Female patients must inform the radiographer or clinical staff if they are pregnant, suspect they might be pregnant, or are currently breastfeeding, as ionizing radiation can pose potential risks to a developing fetus.
• If the patient has previous X-rays, CT scans, or MRI reports of the affected foot, they should bring them to the appointment to assist the radiologist in comparative analysis.

During the Procedure

Upon entering the digital radiography suite at Dr. Essa Lab, patients are greeted by a certified radiographer who will explain the steps of the procedure. The patient will be asked to sit or lie down on the comfortable X-ray examination table. The procedure involves the following steps:

• For the Lateral (LAT) View: The patient is positioned on their side on the examination table, with the affected leg extended and the lateral aspect of the foot resting flat against the digital image receptor. The opposite leg is positioned comfortably out of the path of the X-ray beam. The foot is dorsiflexed to a 90-degree angle to ensure a true lateral projection of the calcaneus, subtalar joint, and surrounding soft tissues.
• For the Anteroposterior (AP) / Axial View: The patient lies in a supine position with the leg fully extended. The sole of the foot is placed flat on the digital detector, and a specialized strap or bandage may be gently used to dorsiflex the foot, pulling the toes toward the shin. The X-ray tube is angled cephalad (toward the head) at approximately 40 degrees to project the calcaneus free from the overlying structures of the ankle and midfoot.
• To ensure patient safety, a lead apron is placed over the patient’s pelvic region to shield reproductive organs from scattered radiation.
• The radiographer steps behind a protective lead barrier to operate the X-ray machine. The patient must remain completely still for a fraction of a second while each exposure is taken to prevent motion blur.
• The entire procedure is entirely painless and is typically completed within 10 to 15 minutes.

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

Evaluation of Calcaneal Fractures and High-Impact Trauma

Physicians frequently request a Calcanium AP/LAT View (DC) following acute trauma, such as a fall from a height or a motor vehicle accident, where the patient lands heavily on their feet. Calcaneal fractures represent the most common tarsal bone fractures and can lead to long-term disability if not diagnosed and managed promptly. The lateral view is essential for evaluating the alignment of the bone and measuring Bohler’s angle, which helps assess the degree of joint depression. The axial (AP) view allows radiologists to determine if the fracture has caused lateral widening of the heel bone, which could impinge on adjacent tendons and nerves.

Diagnosis of Plantar Fasciitis and Plantar Heel Spurs

Plantar fasciitis is a leading cause of chronic heel pain, characterized by sharp, stabbing pain on the underside of the heel, particularly during the first steps in the morning. While plantar fasciitis is primarily a clinical diagnosis, a Calcanium AP/LAT View (DC) is highly valuable in ruling out other osseous causes of heel pain. The lateral radiograph can clearly demonstrate the presence of an inferior calcaneal spur (osteophyte) at the origin of the plantar fascia on the medial calcaneal tuberosity. It also helps assess for localized soft tissue thickening or calcification.

Assessment of Achilles Tendinopathy and Haglund’s Deformity

Patients presenting with pain, swelling, and tenderness at the back of the heel are often evaluated for Achilles tendinopathy or Haglund’s deformity. Haglund’s deformity is a bony enlargement of the posterosuperior aspect of the calcaneus, which can lead to painful inflammation of the overlying retrocalcaneal bursa and the Achilles tendon itself. The lateral X-ray view provides an excellent profile of the posterior calcaneus, allowing the radiologist to measure the Fowler-Philip angle and identify any retrocalcaneal bursitis, posterior calcaneal spurs, or calcification within the Achilles tendon insertion.

Investigation of Suspected Calcaneal Stress Fractures

Unlike acute fractures caused by sudden trauma, stress fractures of the calcaneus develop gradually due to repetitive weight-bearing activities, such as long-distance running, marching, or sudden increases in physical training intensity. Patients typically present with diffuse heel pain that worsens with activity and is elicited by squeezing the heel from side to side. A Calcanium AP/LAT View (DC) is the initial imaging modality of choice to screen for stress fractures, which often appear on digital X-rays as a faint, band-like line of increased bone density (sclerosis) running perpendicular to the trabecular patterns.

Detection of Bone Infections and Pathological Lesions

Persistent, non-traumatic heel pain accompanied by localized warmth, redness, or systemic symptoms like fever may raise suspicion for osteomyelitis (bone infection) or a bone tumor. Conditions such as diabetes or peripheral vascular disease increase the risk of deep foot infections spreading to the bone. The Calcanium AP/LAT View (DC) helps clinicians detect early signs of osteomyelitis, such as localized bone destruction (lytic lesions), periosteal reaction, or sequestrum formation. It is also highly effective in identifying benign bone tumors, such as unicameral bone cysts, which commonly occur in the calcaneus.

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

The Calcanium AP/LAT View (DC) is a highly sensitive diagnostic tool capable of detecting a wide range of pathological conditions, structural variations, and traumatic injuries. The digital imaging technology at Dr. Essa Lab allows for the precise identification of:

• Acute intra-articular calcaneal fractures involving the subtalar joint.
• Extra-articular calcaneal fractures sparing the joint surfaces.
• Calcaneal stress fractures characterized by localized sclerotic bands.
• Plantar calcaneal osteophytes (heel spurs) at the plantar fascia origin.
• Posterior calcaneal osteophytes at the insertion of the Achilles tendon.
• Haglund’s deformity (prominent posterosuperior calcaneal tuberosity).
• Subtalar joint space narrowing indicative of osteoarthritis.
• Calcaneocuboid joint degeneration and osteophyte formation.
• Unicameral (simple) bone cysts within the neutral triangle of the calcaneus.
• Osteomyelitis presenting as focal radiolucent (lytic) bone destruction.
• Periosteal reaction or new bone formation due to infection or trauma.
• Decreased Bohler’s angle (less than 20 degrees), indicating calcaneal collapse.
• Increased Fowler-Philip angle associated with Haglund’s syndrome.
• Soft tissue swelling around the plantar or posterior aspects of the heel.
• Calcification within the Achilles tendon substance (tendinosis).
• Calcification within the plantar aponeurosis.
• Radiopaque foreign bodies embedded in the heel’s soft tissues.
• Calcaneal erosions secondary to inflammatory arthritis (e.g., rheumatoid arthritis, ankylosing spondylitis).
• Tarsal coalition, such as talocalcaneal or calcaneonavicular bony bridging.
• Displaced bone fragments or step-offs in the articular surface.
• Localized osteopenia or bone density loss in the hindfoot.
• Malunion or non-union of previous calcaneal fractures.
• Avulsion fractures of the calcaneal tuberosity.
• Subluxation or dislocation of the subtalar or calcaneocuboid joints.
• Cortical thickening in response to chronic mechanical stress.

Turnaround Time and Report Access at Dr. Essa Lab

At Dr. Essa Laboratory & Diagnostic Centre, we understand that timely diagnostic results are critical for effective clinical decision-making and patient peace of mind. Thanks to our state-of-the-art digital radiography (DC) systems, the images captured during your Calcanium AP/LAT View (DC) are instantly transmitted to our secure Picture Archiving and Communication System (PACS). Our team of highly experienced Consultant Radiologists reviews the digital images immediately, analyzing the bony structures, joint spaces, and soft tissues with meticulous detail.

The finalized, medically verified diagnostic report is typically available within a few hours of the procedure, and always within a 24-hour window. Dr. Essa Lab offers multiple convenient ways for patients to access their reports and digital images. Patients can securely download their reports and view high-resolution X-ray images online through the official Dr. Essa Lab web portal or dedicated mobile application. Additionally, physical copies of the report and high-quality digital prints or CD-ROMs of the images can be collected directly from the reception desk of the diagnostic center where the test was performed.

Calcanium AP/LAT View (DC) Findings Overview

Structure / Parameter Evaluated	Normal Findings	Possible Abnormal Findings
Calcaneal Cortex & Trabecular Pattern	Intact cortex, normal trabecular density	Cortical disruption (fracture), radiolucent lytic lesions, sclerotic lines (stress fracture)
Subtalar Joint Space	Well-preserved joint space, smooth articular margins	Joint space narrowing, subchondral sclerosis, osteophyte formation (osteoarthritis)
Calcaneocuboid Joint Space	Normal alignment and joint space	Subluxation, degenerative changes, joint space narrowing
Plantar Aspect of Calcaneus	Smooth bone surface without bony projections	Plantar spur (inferior osteophyte), cortical erosion
Posterosuperior Calcaneus	Normal contour of the calcaneal tuberosity	Haglund’s deformity (bony prominence), posterior spur
Surrounding Soft Tissues	Normal thickness, no calcification or abnormal swelling	Soft tissue swelling, radiopaque foreign bodies, calcification of Achilles tendon/plantar fascia
Bone Density	Normal radiodensity appropriate for age	Diffuse osteopenia, localized lytic bone destruction, increased density (osteopetrosis or sclerosis)
Alignment of Hindfoot	Normal anatomical alignment of tarsal bones	Malalignment, subluxation, tarsal coalition

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 AP/LAT View (DC)?

• State-of-the-art digital radiography (DR/DC) technology ensuring high-resolution images with minimal radiation exposure.
• Highly qualified and experienced Consultant Radiologists who provide precise and detailed diagnostic reporting.
• A legacy of trust and diagnostic excellence in Pakistan since 1987.
• Convenient online portal and mobile application for easy access to digital X-ray reports and images.
• ISO-certified laboratory and diagnostic facilities adhering to international quality standards.
• Extensive network of branches across Karachi and other major cities for easy accessibility.
• Compassionate patient care with minimal waiting times and a comfortable diagnostic environment.
• Affordable and transparent pricing for all diagnostic imaging and laboratory investigations.