How a Diagnostic Nerve Block Identifies the Painful Joint?
To identify the painful joint, a diagnostic nerve block temporarily anesthetizes (numbs) the specific nerve that transmits your pain signals to the brain. After the injection, if you experience significant pain relief, it confirms that the targeted nerve and joint are the source of your discomfort.
At Total Orthopedics and Sports Medicine, our doctors utilize various types of nerve blocks to pinpoint the source of your pain and develop a targeted treatment plan. When needed, we offer radiofrequency ablation, steroid injections, or regenerative therapies for long-lasting relief. Contact us at 855-321-6784 for advanced treatment.
Why Diagnostic Nerve Blocks Are Used to Assess Joint Pain?
Diagnostic nerve blocks are used to assess joint pain because they are non-invasive, cost-effective, and provide immediate diagnostic information. According to research published in the Global Spine Journal, a nerve block can also confirm the source of pain if imaging results are unclear or conflicting.
Moreover, an NIH study shows that selective nerve root blocks have a diagnostic accuracy of 89.5%. It also reports that about 80% of patients experience significant pain relief that lasts for 2 years. This precision helps your doctor make informed treatment decisions and treat the underlying cause of your joint pain.
What Conditions Can Benefit From a Diagnostic Nerve Block?
Diagnostic nerve blocks can help you manage various pain conditions such as sciatica, herniated discs, facet joint arthritis, CRPS, and migraines. They also ease chronic post-surgical pain, cancer-related discomfort, and sacroiliac joint problems that interfere with your daily routine. Moreover, these blocks assess nerve-related conditions, including lumbar radiculopathy, nerve damage, or spinal stenosis.
Here are different types of nerve blocks used to address specific conditions:
- Stellate ganglion block: Targets pain in the neck, arms, chest, head, and legs.
- Facet Joint Blocks: Diagnostic nerve block for back pain and neck pain
- Genicular Nerve Blocks: Provide targeted arthritis knee pain relief
- Peripheral Nerve Blocks: Manage nerve pain in small joints, lower and upper extremities
- Sympathetic Nerve Blocks: Help treat complex regional pain syndrome
- Occipital Nerve Block: Improve migraines and chronic headache disorders
What Are the Benefits of a Diagnostic Nerve Block?
A diagnostic nerve block identifies the exact source of pain, provides targeted pain relief, and guides appropriate treatment. According to NCBI research, diagnostic nerve block also reduces the need for systemic medications such as opioids through direct treatment of the pain source.
Moreover, a diagnostic nerve block is a safe, non-surgical outpatient procedure that carries far less risk than major surgery. In fact, a study published in the JAMA Network reports a 0.4% complication rate for these injections. It also shows that 70.8% of ultrasound-guided nerve blocks achieve a 51% to 100% reduction in pain.
When Do Doctors Recommend a Diagnostic Nerve Block for Joint Pain?
Doctors recommend a diagnostic nerve block when the source of joint pain remains unclear despite imaging and clinical examination. They also consider this option when conservative treatment, anti-inflammatory medication, or rest fails to provide relief.
According to the International Journal of Environmental Research and Pubic Health, doctors prefer a nerve block while performing surgery because it helps verify the correct anatomical level. With this confirmation, the surgeon can develop a more targeted and effective surgical strategy. This approach also improves the chances of a successful outcome and reduces the need for unnecessary procedures.
Which Joints Can Be Assessed Using a Diagnostic Nerve Block?
Diagnostic nerve blocks can assess pain originating from the sacroiliac joints and the spine’s facet joints (neck, mid-back, and low back). It also targets the nerves supplying the peripheral joints, such as the knee, shoulder, and hip. If you are experiencing joint pain, our doctors at Total Orthopedics and Sports Medicine identify the affected joint, examine pain patterns, muscle strength, and nerve function. Schedule your appointment today for an accurate assessment.
Can a Nerve Block Differentiate Between Joint and Soft-Tissue Pain?
Yes, a nerve block can help distinguish between joint pain and soft-tissue pain. By numbing the specific nerve associated with the painful region, the response during the procedure gives a direct indicator of the pain source. For instance, if numbing the nerve that supplies a joint reduces your pain, the joint is the source of discomfort. Similarly, if your symptoms relieve when a nerve supply to a muscle or soft tissue is blocked, it confirms the presence of soft-tissue pain. This clear pattern helps your doctor identify the source of pain and guide treatment accordingly.
Are Diagnostic Nerve Blocks Safe for Older Adults?
Yes, diagnostic nerve blocks are a safe and reliable option for older adults. Research in Geriatric Orthopedic Surgery and Rehabilitation found that nerve blocks are a safe and less invasive procedure for the elderly population. They also help reduce pain, prevent delirium, and significantly decrease opioid use. Moreover, a BMJ study shows that anesthesia use shortens hospital stays and improves the quality of life in elderly patients. These interventional pain management techniques also help prevent the following complications:
- Confusion and dizziness
- Constipation
- Postoperative hypoxia
- Breathing difficulties
However, proper technique and ultrasound guidance are essential to ensure accurate needle placement and reduce the risk of injury. At Total Orthopedics and Sports Medicine, our specialists perform nerve blocks using advanced imaging to achieve effective results. We also adjust the medical procedure based on patient pain patterns and overall health needs. Contact us for an effective treatment plan.
What’s the Difference Between a Diagnostic Vs a Therapeutic Nerve Block?
A diagnostic nerve block uses numbing medicine to identify the specific nerve causing your pain. In contrast, a therapeutic nerve block uses steroids and anesthetics to reduce inflammation and relieve symptoms. The effects of a diagnostic block typically last only a few hours, while a therapeutic block provides extended relief that can last for weeks or even months.
How Do Doctors Interpret the Results of a Nerve Block?
Doctors review your pain levels and function before and after the injection to interpret the results of the nerve block. Then, they compare your feedback with the expected pain pattern to determine whether the blocked nerve causes pain. This process is supported with imaging guidance to confirm that the anesthetic reached the correct target. However, if the diagnosis is unclear, your doctor may repeat the procedure or examine other nerves to identify the actual source of acute pain.
Are There Any Restrictions Before or After a Diagnostic Nerve Block?
Yes, there are specific restrictions before and after a diagnostic nerve block. You should stop blood-thinning medicine and fast for 6–8 hours before the procedure to ensure a safe and accurate result. After the nerve block, it is also essential to avoid strenuous activity, driving, and heavy lifting for several days to prevent irritation and support recovery.
You should also keep the injection area dry by avoiding exposure to water, such as tub baths, pools, and hot tubs, for 1-3 days after the procedure. Moreover, if sedation is administered, do not drink alcohol because it can worsen dizziness and increase bleeding risk. These precautions protect the injection site, promote healing, and preserve the accuracy of your diagnostic results.
Important Note: If you experience any allergic reactions, redness, swelling, or fever after the procedure, seek medical attention immediately.
Total Orthopedics & Sports Medicine Can Help You Find Out What’s Causing Your Joint Pain — Visit Us Now!
Choosing the right treatment for joint pain can be difficult, especially if the root cause of your pain isn’t fully diagnosed. This uncertainty often leads to ongoing pain, limited range of motion, and repeated treatments that fail to address the exact source of the problem.
At Total Orthopedics and Sports Medicine, we use a nerve block to assess your condition and guide you to the safest and most effective treatment. Our doctors also consider your pain level and use a local anesthetic to minimize discomfort and improve treatment outcomes. Contact us at 855-321-6784 or visit 207-12 Northern Blvd, 3rd Floor, Bayside, Queens, NY 11361 to schedule an appointment.
FAQs
What Are The 4 Types Of Nerve Blocks?
Epidural, peripheral, sympathetic, and celiac nerve blocks are common types of nerve blocks. These nerve block types target a specific nerve region, which helps your doctor identify the exact source of your pain. These targeted interventions also manage chronic pain conditions, ongoing flare-ups, and improve daily function.
What Can I Expect After A Nerve Block Injection?
You may notice temporary numbness, mild soreness, bruising, or weakness for several hours after the injection. This response shows that the local anesthetic affects the targeted nerve. Therefore, during this time, you should protect the numbness area and avoid heavy activity.
How Long Do Diagnostic Nerve Blocks Last?
Diagnostic nerve blocks typically last between 5 and 8 hours. However, the exact duration depends on the type of local anesthetic, your individual metabolism, and the specific diagnostic block used. These variations help your provider interpret your response and choose the most appropriate treatment options.
What Are The Signs A Nerve Block Is Wearing Off?
You may notice pain, tingling, or increased sensitivity as the nerve block begins to fade. You might also feel mild muscle weakness, brief spasms, or difficulty with normal movement as sensation increases. But if you notice these signs, it is essential to adjust your activity and follow your doctor’s guidance for managing ongoing pain.
Will A Nerve Block Help With Arthritis Pain?
Yes, a nerve block can help relieve arthritis pain. It works by interrupting pain signals traveling from the irritated joint nerves to the brain, which can quickly reduce discomfort. This relief often lasts long if the injection includes a corticosteroid, because it decreases joint inflammation and swelling that contribute to ongoing arthritis pain.
Can A Nerve Block Give A False Result?
Yes, a nerve block can give a false result if the anesthetic affects nerves outside the targeted region. These situations can also occur if your symptoms change with movement or activity. However, skilled technique, comparative blocks, and careful clinical review significantly improve accuracy and reduce errors.
Does Taking Pain Medicine Affect The Accuracy Of The Nerve Block?
Yes, pain medicine can affect the accuracy of a nerve block. Some medications can reduce pain signals and make assessment more challenging. While some medicines support overall comfort without affecting the nerve block. Therefore, it is essential to follow the doctor’s pre-procedure instructions to ensure an accurate diagnosis and treatment.
