Roberts syndrome is a rare genetic disorder that attracts considerable attention in the medical field due to its effects on fetal development and the congenital abnormalities it may cause in the limbs, face, and other parts of the body. Its significance extends beyond its rarity to include the challenges associated with early diagnosis, assessing disease severity, and selecting appropriate treatment strategies for each patient.With advances in modern medicine, reconstructive surgery, and rehabilitation, it has become possible to address certain abnormalities associated with the syndrome to improve motor function and physical appearance, reduce complications, and enhance patients’ quality of life. Therefore, Daleely Medical highlights the importance of understanding Roberts syndrome, including its causes, symptoms, and diagnostic methods, while focusing on available treatment options and the role of surgery in correcting congenital abnormalities and improving patients’ lives.

First: What Is Roberts Syndrome?

Roberts syndrome is a rare genetic disorder associated with mutations in the ESCO2 gene, which plays an essential role in cell division and normal embryonic development. These genetic changes can disrupt the development of various parts of the body, and the condition may be detected during pregnancy or at birth.

Second: What Are the Symptoms of Roberts Syndrome?

The symptoms of Roberts syndrome vary from one individual to another, depending on the severity of the condition. They may include the following:

• Limb abnormalities: Severe shortening of the arms or legs, or underdevelopment of certain bones.

• Hand and foot abnormalities: These may include missing fingers or toes, malformed digits, or webbing between the fingers or toes.

• Facial abnormalities: Such as a cleft lip or cleft palate, sometimes accompanied by other differences in facial features.

• Microcephaly: A smaller-than-average head size, sometimes accompanied by changes in the shape of the skull and facial structure.

• Growth delays: The fetus may experience intrauterine growth restriction, and poor growth may persist after birth.

• Abnormalities affecting other organs: Some individuals may have congenital abnormalities involving internal organs, with the type and severity varying from one case to another.

Third: Is Roberts Syndrome an Inherited Genetic Disorder?

Yes. Roberts syndrome is a rare genetic disorder inherited in an autosomal recessive pattern. This means that an affected child inherits one altered copy of the ESCO2 gene from each parent.

When both parents are carriers of the genetic variant responsible for the condition, the probability for each pregnancy is as follows:

• 25% probability that the child will have Roberts syndrome.

• 50% probability that the child will be a carrier of one altered copy of the gene without having the syndrome.

• 25% probability that the child will neither have the syndrome nor carry the altered gene variant.

Fourth: Can Roberts Syndrome Be Cured Completely?

There is currently no definitive cure that corrects the genetic defect responsible for Roberts syndrome. However, medical, surgical, and rehabilitative interventions can help manage congenital abnormalities and associated complications.

Treatment aims to improve motor function, support feeding and breathing, reduce complications, and enhance the affected individual's quality of life, depending on the nature and severity of the condition.

Fifth: Can Roberts Syndrome Be Treated with Surgery?

Yes. Surgical intervention may be used to address certain abnormalities associated with Roberts syndrome, although surgery does not treat the underlying genetic cause of the disorder.

The type of surgery depends on the abnormalities present and the patient's overall health. Potential surgical options include:

• Hand and finger surgery: To correct certain deformities or separate fused fingers when this is feasible and safe.

• Lower limb surgery: To correct selected leg and foot deformities and improve standing or walking ability, depending on the underlying bone structure.

• Facial and jaw surgery: To repair a cleft lip or cleft palate, when present.

• Reconstructive surgery: To improve the function or appearance of affected body parts when a clear benefit is expected.

The choice and timing of surgery depend on an assessment by a specialized medical team, taking into account the potential benefits and the risks associated with anesthesia, surgery, and rehabilitation.

Sixth: How Is Roberts Syndrome Diagnosed?

The diagnosis of Roberts syndrome relies on a combination of clinical evaluation, imaging studies, and genetic testing to confirm the condition and identify associated abnormalities.

Diagnostic methods may include:

• Clinical examination: To assess congenital abnormalities, particularly those affecting the limbs and face, and to monitor growth and development.

• Prenatal ultrasound: To detect certain abnormalities and assess fetal growth and organ development.

• Genetic testing: To identify disease-causing variants in both copies of the ESCO2 gene. This is one of the most important methods for confirming the diagnosis.

• Chromosomal studies: These may be performed in selected cases to evaluate other genetic disorders or investigate findings when the diagnosis remains uncertain.

Seventh: Can Roberts Syndrome Be Detected During Pregnancy?

Yes. Roberts syndrome may be suspected during pregnancy through ultrasound examinations, which can reveal abnormalities such as shortened limbs, abnormal development of the hands and feet, or a cleft lip.

Prenatal genetic testing may also help confirm the diagnosis, particularly when there is a family history of the disorder or the causative genetic variant is already known.

The appropriate tests are determined according to gestational age and clinical findings, in collaboration with specialists in fetal medicine and medical genetics.

Eighth: Can a Child with Roberts Syndrome Survive?

Yes. Some children with Roberts syndrome survive into adulthood, particularly those with less severe forms of the condition.

However, severe cases involving extensive congenital abnormalities or serious respiratory or internal organ complications may carry an increased risk of death during the perinatal period or early childhood.

The prognosis therefore depends on the severity of the abnormalities and associated complications. Life expectancy cannot be reliably predicted from the diagnosis alone.

Ninth: Does Roberts Syndrome Affect Intellectual Abilities and Cognitive Development?

Some individuals with Roberts syndrome may experience developmental delays, and cognitive difficulties or intellectual disability may occur to varying degrees.

However, a child's intellectual abilities cannot be determined solely by the severity of limb abnormalities or differences in facial appearance.

An individualized assessment of cognitive, language, and motor skills is therefore recommended, along with regular developmental monitoring to identify educational and rehabilitative needs.

Tenth: Are There Medical or Rehabilitative Treatments for Roberts Syndrome?

There are currently no medications that correct the genetic defect responsible for Roberts syndrome. Nevertheless, supportive care and rehabilitation play an important role in improving daily functioning and reducing complications.

Available interventions may include:

• Physical therapy: To improve mobility, maintain joint flexibility, and support standing and walking when possible.

• Occupational therapy: To develop hand-use skills and improve independence in everyday activities.

• Prosthetic and orthotic devices: To support mobility and compensate for certain limb-related functional limitations according to the patient's needs.

• Nutritional support and swallowing management: To ensure adequate nutrition and address feeding difficulties when present.

• Speech, hearing, and vision interventions: According to the specific difficulties experienced by the patient.

• Internal organ monitoring: To identify and manage problems involving the heart, kidneys, eyes, or other organs when necessary.

These interventions may improve quality of life, even when surgery is not possible or appropriate.

Eleventh: How Does Roberts Syndrome Progress Through Different Stages of Development?

The development and detection of Roberts syndrome can be understood through the following stages.

1. Fetal Development

The disorder results from genetic changes that affect cellular processes required for normal growth. During embryonic development, abnormalities may arise in the formation of the limbs, face, and other body structures. The severity of these abnormalities varies among affected individuals.

2. Prenatal Detection

Ultrasound examinations may reveal findings that raise suspicion of Roberts syndrome, including shortened limbs, abnormalities of the hands and feet, or certain facial abnormalities.

Prenatal genetic testing may be used to confirm the diagnosis when appropriate.

3. After Birth

Some congenital abnormalities become more apparent after birth. The child may require a comprehensive assessment of growth, nutrition, breathing, limb function, and internal organ function.

A care plan is then developed according to the individual's needs and may include surgery, rehabilitation, and long-term medical monitoring.

Twelfth: Does the Severity of Roberts Syndrome Vary?

Yes. Roberts syndrome can vary considerably in severity among affected individuals. Cases may be broadly described according to the extent of congenital abnormalities and associated complications.

• Severe cases: These may involve marked limb shortening, multiple congenital abnormalities, and serious organ complications that can affect survival.

• Less severe cases: These may involve abnormalities of varying degrees, with opportunities to improve function and quality of life through appropriate medical, surgical, and rehabilitative interventions.

These categories are general descriptions rather than definitive classifications, and each patient's condition must be assessed individually.

What Causes Roberts Syndrome?

Roberts syndrome is a rare genetic disorder associated with disease-causing variants in the ESCO2 gene, which plays an important role in sister chromatid cohesion and normal cell division.

The main causes and genetic mechanisms include the following:

1. Genetic mutations: Disease-causing variants in the ESCO2 gene disrupt cellular processes essential for normal embryonic development, potentially resulting in multiple congenital abnormalities.

2. Inheritance from both parents: The disorder follows an autosomal recessive inheritance pattern, meaning that an affected child inherits one disease-causing variant from each parent.

3. Asymptomatic carrier status: Both parents may be clinically unaffected carriers of one disease-causing variant and may pass the variants to their child.

What Are the Symptoms of Roberts Syndrome?

Symptoms vary according to the severity of the condition and may include congenital abnormalities affecting the limbs, face, and growth.

1. Limb Abnormalities

• Severe shortening of the arms or legs.

• Underdevelopment or absence of certain limb bones.

• Abnormalities of the fingers and toes, including missing or extra digits and fusion between adjacent digits.

2. Facial Abnormalities

• Cleft lip, sometimes accompanied by a cleft palate.

• A small jaw or nose, or other differences in facial features.

• Widely spaced eyes in some cases.

3. Growth and Developmental Problems

• Low fetal weight or intrauterine growth restriction.

• Microcephaly in some individuals.

• Growth and developmental delays after birth, with learning difficulties occurring in some affected individuals.

Not all symptoms occur in every patient. The clinical presentation varies considerably from one individual to another.

Can Symptoms of Roberts Syndrome Be Detected During Pregnancy?

Yes. Some signs suggestive of Roberts syndrome may be detected during pregnancy, particularly through detailed ultrasound examinations.

These findings may include shortened limbs, abnormalities of the bones in the hands and feet, cleft lip, and fetal growth restriction.

However, ultrasound findings alone are insufficient to confirm the diagnosis. Genetic testing may therefore be recommended when clinical findings support suspicion of the disorder.

How Is Roberts Syndrome Diagnosed?

Diagnosis relies on a combination of clinical examination, medical imaging, and genetic testing. The evaluation may include the following steps.

1. Prenatal Ultrasound

Ultrasound may identify abnormalities that warrant further investigation, including:

• Shortened limbs or skeletal abnormalities.

• Restricted fetal growth.

• Certain facial abnormalities, such as cleft lip.

• Possible heart or kidney abnormalities.

These findings are not unique to Roberts syndrome, and the absence of some of them does not exclude the condition.

2. Genetic Testing of the ESCO2 Gene

Genetic testing is one of the most important methods for confirming the diagnosis. It looks for disease-causing variants in both copies of the ESCO2 gene.

Testing may be performed after birth or prenatally using an appropriate fetal sample, depending on the physician's assessment and genetic counseling.

3. Chromosomal Analysis

Chromosomal studies may reveal a characteristic finding known as premature centromere separation, which is associated with impaired sister chromatid cohesion.

What Tests Are Recommended When Fetal Roberts Syndrome Is Suspected?

When congenital abnormalities are detected during pregnancy, the physician may recommend a series of investigations depending on the clinical findings, including:

• Detailed fetal ultrasound: Performed by a fetal medicine specialist to assess fetal development and identify structural abnormalities.

• Fetal echocardiography: To evaluate the fetal heart when clinical findings indicate a need for further assessment.

• Genetic counseling and ESCO2 gene testing: To assess the likelihood of Roberts syndrome and identify disease-causing genetic variants.

• Chorionic villus sampling (CVS) or amniocentesis: These procedures may be discussed when appropriate to obtain fetal genetic material for testing and help confirm the diagnosis.

The choice of tests depends on the gestational age, ultrasound findings, family history, and the advice of the fetal medicine and genetics teams.

Medical Treatment for Roberts Syndrome

It is important to emphasize that there is currently no medication that corrects the genetic defect responsible for Roberts syndrome or provides a definitive cure. Drug treatment focuses on managing associated symptoms and complications, supporting nutrition and breathing, improving mobility, and enhancing quality of life according to the patient's medical condition and the severity of the syndrome.

1. Medications and Nutritional Support

Some children with Roberts syndrome may experience poor growth or feeding difficulties. Their treatment may include:

• Management of malnutrition: High-calorie nutritional formulas or dietary supplements may be recommended when necessary under medical supervision.

• Treatment of gastroesophageal reflux: Appropriate medications may be prescribed when reflux is confirmed and requires treatment.

• Correction of vitamin and mineral deficiencies: Deficiencies identified through medical testing should be treated according to the child's individual needs.

• Specialized nutritional support: Some children may require assisted feeding, including a feeding tube, when their nutritional requirements cannot be met adequately by mouth.

2. Management of Respiratory Problems and Infections

Treatment depends on the nature and severity of the problem and may include:

• Management of breathing difficulties: Assessment of the airway and provision of oxygen or respiratory support when indicated by the medical team.

• Treatment of bacterial infections: Appropriate antibiotics may be prescribed when a bacterial infection requiring treatment is diagnosed.

• Respiratory monitoring: Regular assessment to identify respiratory complications early and provide timely treatment.

Antibiotics should not be used indiscriminately or as a preventive measure without a clear medical indication.

3. Treatment of Limb Abnormalities

No medication can regenerate missing bones or correct severe structural abnormalities caused by Roberts syndrome. Management therefore relies on supportive and rehabilitative approaches, which may include:

• Physical therapy to improve mobility and maintain joint flexibility.

• Occupational therapy to develop hand function and support independence in daily activities.

• Splints, orthotic devices, or prostheses when appropriate.

• Surgical intervention to correct selected abnormalities that are amenable to surgery.

4. Treatment of Facial and Oral Abnormalities

When a cleft lip or cleft palate is present, the child may require a comprehensive treatment plan that includes:

• Specialized feeding equipment to facilitate feeding and reduce feeding difficulties.

• Reconstructive surgery to repair the cleft, according to the child's age and medical condition.

• Speech and hearing assessments, with appropriate follow-up for related difficulties.

• Medication when an associated condition requires pharmacological treatment.

5. Management of Eye, Heart, and Kidney Problems

Roberts syndrome may be associated with abnormalities affecting certain organs. Treatment depends on the specific condition identified rather than on the diagnosis of Roberts syndrome alone.

• Eye problems: Treatment may involve eye drops, medications, or other interventions prescribed by an ophthalmologist according to the diagnosis.

• Heart problems: Depending on the type and severity of the cardiac defect, treatment may involve medication, cardiac catheterization, or surgery.

• Kidney problems: Management may require monitoring kidney function and treating the identified disorder in collaboration with a nephrologist or urologist.

Are There Experimental Medications That Treat the Genetic Cause?

Laboratory research is being conducted to investigate the genetic and biological mechanisms associated with Roberts syndrome, with the aim of improving understanding of the disorder and potentially developing future treatments.

However, there is currently no established and approved drug treatment that targets or corrects the underlying genetic defect responsible for Roberts syndrome.

Experimental medications and high-dose nutritional supplements should not be used with the intention of correcting the genetic mutation outside an appropriate research setting or without specialist medical supervision, because they may cause unexpected adverse effects or complications.

Surgical Treatment for Roberts Syndrome

Surgery may help correct selected congenital abnormalities associated with Roberts syndrome. The appropriate procedure depends on the location and severity of the abnormality, the patient's overall health, and the potential functional benefits.

What Surgical Procedures May Be Used to Treat Roberts Syndrome?

1. Hand and Finger Surgery

Hand surgery may be considered when there is fusion between the fingers, abnormal finger positioning, or congenital absence of the thumb or certain hand bones, particularly when these abnormalities interfere with grasping objects or performing daily activities.

Potential surgical options include:

• Separation of fused fingers: To improve finger movement and independence when the anatomy allows.

• Correction of finger positioning: By adjusting the position of the fingers or correcting selected bone deformities to improve function.

• Thumb reconstruction: In selected cases, an existing finger may be used to create a functional thumb if thumb absence significantly limits grasping ability.

• Prosthetic and rehabilitative approaches: Splints, assistive devices, and occupational therapy may be more appropriate when bone deficiencies are severe or the expected benefits of surgery are limited.

The choice of procedure depends on the anatomy of the hand, the availability of bones and soft tissues, the condition of the tendons and nerves, and the specific function that needs to be improved.

2. Lower Limb and Foot Surgery

Surgery involving the lower limbs aims to improve foot positioning, correct treatable bone deformities, and enhance standing and walking ability according to the patient's anatomical and functional potential.

Treatment options may include:

• Correction of angular deformities: Realignment of the bones when technically feasible and functionally beneficial.

• Bone fixation or realignment: To correct bone positioning or improve stability when indicated.

• Orthotic devices and prostheses: To compensate for missing parts of a limb and improve balance, mobility, and independence.

• Assessment for possible limb lengthening: In highly selected cases, following a careful evaluation of the potential benefits and risks.

Limb lengthening is not suitable for every patient. The risks may be greater when there are severe deficiencies in bone or soft tissue. A specialized pediatric orthopedic team must therefore assess whether the procedure is appropriate.

3. Cleft Lip and Cleft Palate Surgery

If Roberts syndrome is accompanied by a cleft lip or cleft palate, surgery may be included in the treatment plan to improve function and appearance, depending on the type and severity of the abnormality and the child's overall health.

Potential interventions include:

• Cleft lip repair: To improve the appearance and function of the lip.

• Cleft palate repair: To support feeding and speech development, depending on the characteristics of the cleft and the child's needs.

• Oral health, dental, hearing, and speech follow-up: Before and after surgery to ensure appropriate rehabilitation and ongoing care.

4. Surgery for Other Facial Abnormalities

Some individuals with Roberts syndrome may have additional abnormalities affecting the face, jaw, or nose. These vary from one patient to another.

Surgery is not performed solely because of differences in physical appearance. Instead, it may be considered when a specific correctable abnormality causes functional problems and the expected benefits outweigh the potential risks.

Depending on the individual case, surgical options may include:

• Reconstructive or corrective nasal surgery: To address selected nasal abnormalities.

• Jaw surgery: To correct certain jaw deformities when they interfere with function.

• Other reconstructive or cosmetic procedures: When there is a clear medical indication.

The decision requires careful assessment by specialists in maxillofacial surgery and plastic surgery, taking into account facial growth, overall health, and the expected functional outcomes.

How Is the Appropriate Surgical Treatment Plan Determined?

The treatment plan for Roberts syndrome is not determined by the diagnosis alone. Instead, it requires a comprehensive, individualized assessment that may involve the following steps:

• Comprehensive medical evaluation: To identify congenital abnormalities and determine their effects on vital functions and mobility.

• Appropriate imaging studies: Such as X-rays and other investigations needed to assess the bones and internal organs, depending on the patient's condition.

• Assessment of surgical and anesthetic risks: With particular attention to cardiac and respiratory function, nutritional status, and any associated medical conditions.

• Development of a multidisciplinary treatment plan: Involving orthopedic surgeons, plastic surgeons, pediatricians, rehabilitation specialists, occupational therapists, and other professionals as needed.

• Follow-up and rehabilitation: To maximize the benefits of surgery, monitor growth and motor function, and identify potential complications.

How Is Surgery Performed in Patients with Roberts Syndrome?

Surgical procedures used to manage abnormalities associated with Roberts syndrome vary according to the location, nature, and severity of the deformity, as well as the patient's overall health.

In general, surgical care involves three main stages: preoperative assessment, the surgical intervention itself, and postoperative care and follow-up.

1. Preoperative Medical Assessment

Preoperative assessment is essential for determining whether surgery is appropriate, reducing potential risks, and selecting the procedure most likely to provide meaningful functional benefits.

This assessment may include the following:

• Confirmation of the diagnosis: Reviewing genetic test results and clinical findings to establish the nature of the disorder and distinguish it from other genetic conditions with similar features.

• Assessment of the bones and limbs: Examining the hands, fingers, legs, and feet, evaluating range of motion and functional ability, and using appropriate imaging to assess bone structure and the severity of deformities.

• Evaluation of internal organs: Assessing the heart, kidneys, respiratory system, growth, and nutritional status according to the patient's symptoms and previous test results.

• Anesthetic assessment: Evaluating the airway, estimating anesthesia-related risks, and reviewing relevant laboratory results and nutritional status.

• Definition of surgical goals: Establishing realistic objectives, such as improving grasp, walking, or feeding, rather than attempting to correct every anatomical difference without considering the likely benefits.

2. How Is the Surgical Procedure Performed?

The surgical technique is selected according to the specific abnormality. There is no single procedure suitable for all individuals with Roberts syndrome.

The following are general examples of possible interventions.

A. Surgery for Fused Fingers

When fingers are fused, the surgeon evaluates the extent of the fusion and the positions of the nerves, blood vessels, and tendons. The appropriate technique is then selected to separate the affected tissues while protecting these anatomical structures.

Skin grafting may be necessary if there is insufficient skin to cover the areas created by separation.

B. Surgery for Bone Deformities

When the bone structure allows corrective surgery, the procedure may involve adjusting the bone's alignment and securing it with an appropriate fixation method to maintain stability during healing.

The choice of procedure depends on the severity of the deformity, bone quality, and the extent to which the abnormality affects movement and function.

C. Thumb Reconstruction

If the thumb is absent or severely deformed and this significantly limits grasping ability, the surgeon may consider thumb reconstruction or transferring another finger to create a functional thumb in selected cases.

This requires a detailed assessment of the bones, tendons, nerves, and blood vessels, as well as the existing function of the remaining fingers.

D. Cleft Lip and Cleft Palate Surgery

When a cleft lip or cleft palate is present, reconstructive techniques may be used to reposition and close the affected tissues while preserving functions related to feeding and speech, according to the type and characteristics of the abnormality.

These examples describe general surgical approaches and are not instructions for performing surgery. The appropriate technique must be determined by a specialist after a comprehensive evaluation of the patient.

3. Postoperative Medical Care

Postoperative care is an essential part of the treatment plan. It helps detect complications early, supports tissue and bone healing, and improves functional outcomes.

Follow-up care typically includes:

• Monitoring breathing, pain, bleeding, and wound healing.

• Assessing blood circulation, sensation, and movement in the operated limb.

• Using splints or other fixation methods when necessary, according to the surgical team's instructions.

• Providing physical therapy to restore movement and improve strength and balance.

• Using occupational therapy to help the child develop grasping skills and perform everyday activities.

• Monitoring bone growth and healing and assessing the need for additional interventions at later stages.

Some patients may require several separate operations over time rather than attempting to correct all abnormalities in a single procedure. This approach may help reduce risks and accommodate the child's growth and changing needs.

Third: What Surgical Risks Should Be Considered?

Surgery in individuals with Roberts syndrome requires special precautions because multiple congenital abnormalities or associated medical conditions may affect growth and recovery.

Potential risks include:

• Anesthetic and respiratory complications: Some patients may have difficulty with airway management, particularly when facial or jaw abnormalities are present.

• Delayed wound or bone healing: The risk may increase in the presence of malnutrition, growth disturbances, or other associated medical conditions.

• Nerve or blood vessel injury: These are potential complications of surgery involving the hands, fingers, and limbs.

• Infection and bleeding: These may occur with various surgical procedures.

• Limited functional improvement: Surgery may not fully restore function, particularly when bone or soft tissue deficiencies are severe.

• Need for additional procedures: Growth-related changes or persistent deformities may require further operations in the future.

For these reasons, surgery should ideally be performed at a medical center with experience in pediatric surgery, congenital abnormalities, and anesthesia, with input from other specialists according to the patient's needs.

Fourth: What Is the Best Treatment Plan for a Child with Roberts Syndrome?

The most appropriate treatment plan depends on the child's individual needs. Priorities are generally determined by the severity of the medical problems, their effects on essential functions, and their impact on quality of life.

1. Address life-threatening conditions and problems affecting vital functions: Such as breathing difficulties, feeding problems, and significant congenital heart defects, when present.

2. Evaluate limb abnormalities: Determine whether surgery is likely to meaningfully improve grasping, standing, or walking.

3. Treat facial abnormalities that affect function: Address abnormalities that interfere with breathing, feeding, or speech when present.

4. Provide long-term rehabilitation: Use physical and occupational therapy, along with appropriate orthotic or prosthetic devices.

5. Maintain medical and genetic follow-up: Monitor growth and development, assess potential complications, and provide genetic counseling for the family.

There is no single recommended age for all surgical procedures in patients with Roberts syndrome. The timing of each intervention depends on the type of abnormality, the urgency of treatment, the patient's medical stability, and the expected benefits of surgery in relation to its potential risks.