Effect of Gender and Prognostic Factors on Sciatica Outcome

Lumbar spinal disorders, including sciatica, have a significant societal impact due to their high costs in terms of hospital care, work absenteeism, and disability. Identifying the factors that influence the outcome of sciatica is crucial for effective management and informing patients.

Gender Differences in Sciatica Outcomes

Early studies have shown that female gender is associated with worse outcomes in sciatica, which may be attributed to differences in emotional distress and coping responses to pain compared to men.

Based on previous studies and recent trials on pain interventions, we theorized that female individuals with sciatica would experience a slower recovery in the short term and a higher risk of unsatisfactory long-term outcomes compared to their male counterparts.

Alongside gender, we examined how other demographic, neurological, and radiological factors influenced the rate of recovery from sciatica. Furthermore, we estimated the impact of unsatisfactory outcomes at the one-year mark.

An early surgical strategy resulted in 89% of patients undergoing lumbar discectomy after a median time of 1.9 weeks, while 39% of conservatively managed patients required surgery after a median time of 14.6 weeks.

At different follow-up moments during the first year, 95% of patients reported complete recovery, but at exactly 12 months, 83% reported complete recovery.

Gender-Specific Recovery and Outcomes

Female patients had slightly worse sciatica symptoms at the start, and at 12 months, a higher percentage of females (28%) reported an unsatisfactory outcome compared to males (11%). This outcome was consistent with scores for perceived recovery, leg pain, back pain, and functional disability.

Females had a slower rate of complete recovery compared to males. Factors such as a positive Bragard’s sign and specific types of work were associated with a lower speed of recovery. In terms of the outcome at 12 months, females had a higher likelihood of experiencing an unsatisfactory outcome compared to males.

As reported by literature, signs were consistently found to have a significant association with the outcome, as reported by the literature. However, variables such as timing of surgery, neurological and radiological factors, and pain intensity did not predict the outcome at 12 months. The influence of gender on the outcome was notable.

Gender, Bragard sign, and smoking consistently emerged as significant factors in the literature’s multivariate analyses. The treatment strategy assigned played a notable role in influencing the risk of an unsatisfactory outcome, with early surgery demonstrating a favorable effect.

However, the effect of early surgery on short-term functional recovery was smaller and statistically insignificant for females compared to males. Females also seemed to experience less relief from disability, leg pain, and back pain with the early surgery strategy, in contrast to males.

A study reported by literature revealed that female gender was independently associated with a higher risk of an unsatisfactory outcome at one year following severe sciatica.

The perceived recovery in females was slower, although early surgery still led to a faster recovery compared to conservative care. However, early surgery did not have significant early treatment effects on leg pain intensity in females. In contrast, males experienced more pronounced early treatment effects favoring early surgery.

Gender and Predictive Variables in Outcomes

Females had worse initial pain and disability scores, and their scores were higher when reporting unsatisfactory recovery compared to males.

Gender, smoking, and Bragard’s signs were identified as predictors of an unsatisfactory outcome. Adjusting for gender, the early surgery strategy showed a significant treatment effect, reducing the odds of an unsatisfactory outcome by half at one year.

Irrespective of treatment, the proportion of patients with a good outcome at one year was 83%. This is lower than the perceived recovery rate of 95% during the first year, as the survival analysis did not account for recurrent pain after initial recovery.

Previous studies have also shown similar results. The mean scores of patients with an unsatisfactory outcome represent significant pain and disability, but the extent of failure has not been quantified yet.

Caution should be exercised when interpreting the results, as the study was not specifically designed to analyze gender influences on outcomes. The high odds ratio for poor outcomes in females may be attributed to the potential effect of multiple testing.

The inclusion of Bragard’s sign as a predictive factor might also be influenced by this. Prior studies have similarly indicated less favorable outcomes for females in sciatica treatment, supported by pain and disability scores.

These findings underscore the importance of considering gender differences in efforts to prevent unsatisfactory outcomes and in patient communication.

In the same reported study, the population showed a notable gender difference, with a higher proportion of male patients seeking surgical help for sciatica. This gender disparity may be influenced by variations in healthcare utilization.

Female patients, compared to males, presented with higher baseline pain intensity and disability scores. This suggests that differences in pain perception between genders may contribute to these findings.

Further investigation is necessary to better understand the nature and implications of these effects, as well as any potential selection biases during the patient retrieval process for surgery.

Female gender has been identified as a risk factor for chronic pain and disability in various musculoskeletal disorders. Recent research suggests that biological, social, and behavioral factors contribute to this risk.

Catastrophizing, more common among females, is an important prognostic variable for developing chronic pain disorders and may be responsive to treatment interventions.

The reasons for females experiencing poorer pain relief outcomes can be multifactorial. In the study reported by literature and other surgical trials, females had higher baseline levels of pain and disability, indicating a more challenging starting point compared to males.

However, baseline pain intensity and disability did not predict the outcome, and no confounding or interaction effects with the recorded variables were observed in the analyses. Previous studies have noted minor differences in reporting on the low back disability questionnaire based on gender.

Due to the trial’s design, a detailed observational study to examine various factors related to gender and prognosis was not possible. Important aspects such as social and psychological factors, somatization scores, co-morbidities, and specific differences in catastrophizing were not measured.

Further studies are needed to confirm the findings and explore gender-specific approaches for improving care in sciatica patients. Discussions about targeted treatment strategies should await additional data from observational studies conducted outside of the hospital setting.

The presence of classical neurological signs and specific characteristics of disk herniation did not have a significant influence on the results. However, gender and smoking played a prominent role in determining the likelihood of an unsatisfactory outcome after one year.

Early surgery had a positive effect on modifying the outcome. When providing information to patients, it is important to consider the slower recovery rate and higher risk of unsatisfactory outcome associated with being female.

Do you have more questions?Ā 

Can sciatica cause knee pain?

Sciatica pain is usually radiated along the back or the side of the thigh and knee into the leg. Occasionally, patients may present with a confusing picture of knee problem, but maybe having sciatica. A thorough history and examination by the physician as well as diagnostic tests in the form of x-rays and MRI may be needed to confirm the diagnosis.

How to fix sciatica nerve pain?

Sciatica nerve pain can be relieved to various modalities. To start with, antiinflammatory medications like ibuprofen, naproxen or Tylenol may help. If pain is not relieved with the medications, physical therapy, chiropractor and acupuncture may also help. The patient may also take medications including gabapentin or pregabalin for pain relief.

The patient should take a short period of bed rest for a day or two. The patient should continue to do normal usual activities. If the pain is not relieved, he should see his doctor. Epidural injection or nerve root blocks may help in relieving the sciatica pain. Patients who are not having any relief with any of the above-mentioned treatment plans, may need an MRI for confirmation of diagnosis and possibly surgery to relieve their pain.

How do you diagnose sciatica?

Sciatica is a clinical diagnosis, which can be corroborated by imagings with or without nerve conduction/EMG studies. Typical patient will present with pain radiating down one leg along the back or the side of the thigh index. They may have been associated with tingling and numbness or back pain.

Occasionally, patients may have weakness in the toes or the ankle. Once the clinical diagnosis is made, confirmation can be done using x-rays and MRI. In patients who have a confusing picture due to underlying comorbidity or atypical presentation, nerve conduction study and electromyographic study can be done to further confirm or rule out sciatica.

Is heat or ice better for sciatica?

Heat is usually better in patients who have sciatica, though patients who are not relieved with heat should also try ice or occasionally rhythmic use of heat and ice, cyclic use of heat or ice may help better than one alone.

Does massage help sciatica?

Massage is one of the modalities of adjuvant therapy for sciatica can be helpful and can decrease pain by strengthening the muscles as well as stretching the nerves. Deep massage can also help decrease the muscle spasms that develop in patients with sciatica.

Where to put an ice pack for sciatica?

For sciatica, an ice pack or even a heating pad can be used by placing it into the lower back and the gluteal region. It helps decrease the inflammation of the nerve there and thereby decreasing the pain and associated symptoms.

Does the inversion table help sciatica?

Inversion table similar to traction helps sciatica by increasing the height of the disk and thereby allowing the disk to go back into space thereby decreasing the compression of the nerve root may help in decreasing the pain of sciatica. The issue of inversion table as well as traction is that this is effective until the patient uses them and once the patient is upright and moving, the effect of the inversion table or the traction may not be persistent.

Can the sciatica cause ankle pain?

Sciatica or lumbar radiculopathy causes pain radiating from the back or the hip into the lower extremities down the leg. The pain radiates along the back or the side of the thigh and leg and radiates down foot. An isolated ankle pain may not be caused by radiculopathy. If the pain is on outer or inner side of the ankle and is radiating down or coming from the top then it may be associated with sciatica or lumbar radiculopathy.

Does sciatica get worse before it gets better?

90% of patients with sciatica will eventually get better in a period of four to six weeks. During this time, the pain may worsen also or it may keep on improving. Patients who have severe pain with or without tingling or numbness usually will need medical attention to relieve their pain during this duration. The treatment may involve medications, physical therapy and cortisone shots. Patients who have sudden onset of neurological deficit or weakness or worsening of the neurological deficit may need surgery also.

Can stress cause sciatica?

Sciatica like any other neurologic pain can have relation with the mental status and cognitive functions of the person. Though stress may directly not be the causative factor for sciatica, it may have its effect on the severity as well as course of the disease process of sciatica. Patients with high stress levels may have difficulty coping with sciatica and may take longer time to get better.

What happens if sciatica left untreated?

Sciatica in most patients will get better by itself in a period of four to six weeks. The pain as well as tingling and numbness tend to improve over time, though it may have periods of worsening. Patients may need treatment in the form of medications or injections to relieve the pain, so as to spend this period of four to six weeks, till then the relief is evident.

Occasionally in about 10% of the patients, there will be no relief, worsening or recurrence of sciatica pain despite all treatment modalities over four to six weeks. These patients may need surgical management to relieve their pain due to the pressure over the nerve roots.

Can sciatica be a serious disorder?

Sciatica is usually self limiting in 90% of patients and only needs treatment in the form of medication and physical therapy and occasionally cortisone injection. In about 10% of patients, this may not be relieved by any modality and these patients may need to undergo surgical treatment.

Sciatica can also rarely lead to rapid neurological deficit presenting in the form of cauda equina syndrome, which can be potentially disabling. The neurological deficit caused due to cauda equina syndrome may be permanent especially if not treated early in the disease process. Such patients may not only have weakness in their legs, but may also lose control over their bowel and bladder, which may or may not recover over time.

What are the medication that can help sciatica?

Sciatica pain can be relieved by the help of anti-inflammatory medications like ibuprofen, naproxen. It can also be helped by Tylenol. Stronger pain medications like tramadol and narcotic medications may occasionally be needed for a short period of time.

Neuromodulator medications like gabapentin and pregabalin may also be helpful in decreasing the sciatica pain. Occasionally, medications like amitriptyline, duloxetine and carbamazepine may also be used in some patients to relieve their pain.

Is the back brace helpful for sciatica pain?

Back brace may be helpful in patients who have back pain with or without sciatica. Patients who have only radicular pain in their lower extremity may not be helped by the back brace. Use of back brace for a long period of time may be detrimental by causing atrophy of the back muscles.

Dr. Nakul Karkare

I am fellowship trained in joint replacement surgery, metabolic bone disorders, sports medicine and trauma. I specialize in total hip and knee replacements, and I have personally written most of the content on this page.

You can see my full CV at my profile page.