Aidin Eslam Pour

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This study looked at the use of buccal buprenorphine (BUP) for managing pain after major orthopedic surgeries in veterans. Researchers reviewed the cases of 35 patients and found that using buccal BUP alongside usual pain relief methods was feasible and patients experienced similar pain levels compared to those who did not receive BUP, with no safety issues reported. This matters because BUP is generally safer than traditional opioids and could be a valuable option for pain management after surgery. Who this helps: Patients recovering from orthopedic surgery.

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This study looked at how different designs of hip implants can affect movement and the risk of bones rubbing against each other in people receiving total hip replacement surgery. The researchers found that using certain types of liners made the risk of bones impinging less, but actually reduced the movement range in some positions, with movements decreasing by as much as 10 degrees. This matters because it highlights that not all implant designs are beneficial for every patient; some may face worse outcomes with different designs, suggesting the need for personalized treatment plans based on individual anatomy. Who this helps: This helps patients undergoing hip replacement surgery by guiding their doctors to choose the best implant for their specific needs.

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A new requirement from Medicare will track how well patients do after hip and knee surgeries by measuring their reported outcomes. This system will show the percentage of patients who experience significant improvement after surgery, and hospitals will need to report this data starting in 2025 to avoid funding cuts. The aim is to make hospital performance more transparent and focused on patient experiences. Who this helps: This helps patients undergoing hip and knee surgeries by ensuring hospitals improve their care quality.

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This study looked at how the position of the pelvis and spine changes after a hip replacement surgery in 250 patients, most of whom were older adults. Researchers found that while about 75% of patients had little change in their pelvic position after surgery, nearly half experienced a significant shift (greater than 7 degrees) after a year, which can affect how the hip implant functions. Understanding these changes is important because they could influence recovery and the effectiveness of the surgery. Who this helps: This helps patients and doctors by informing them about potential changes after hip replacement surgery.

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This study looked at the causes of low back and sacroiliac joint pain in patients who had hip replacement surgery. Researchers found that those with sacroiliac pain showed more movement in their pelvis when transitioning from standing to sitting compared to those without pain—specifically, they had an average difference in pelvic angle of -3.3° versus -1.5° in the other group. This finding is important because it suggests that sacroiliac joint pain is linked to how the pelvis moves during everyday activities after hip surgery, which could inform better treatment options. Who this helps: This information benefits patients experiencing pain after hip replacement and their doctors in managing their recovery.

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This study looked at how hip surgery planning might be incorrect because it doesn't take into account changes in the angle of the pelvis before and after surgery. Researchers analyzed images from 237 patients who underwent hip replacements and found that about one-third of them experienced significant changes in pelvic tilt after the surgery, which could affect their treatment plans. This matters because relying on outdated planning methods could lead to less effective outcomes for patients after hip surgeries. Who this helps: Patients undergoing hip replacement surgery.

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This study looked at how patients feel about the length of their legs after hip replacement surgery and whether this feeling is related to issues with their spine. Researchers found that although some changes in the body, like how the pelvis rotates or the alignment of the knees, can affect how patients perceive their leg length, there was no link between this perception and any history of spine problems or stiffness in the lower back. This is important because it means doctors can't assume spine issues will affect leg length perception after hip surgery, so they should focus on other factors that truly matter. Who this helps: This helps patients who have undergone hip replacement surgery and their doctors.

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This study examined whether taking X-rays of patients in a flexed seated position provides important information for planning total hip replacement surgery. The researchers found that there is a significant difference in pelvic angle, with an average difference of 11.3 degrees between relaxed sitting and flexed sitting positions, which can impact the risk of dislocation after surgery. This finding matters because considering how a patient sits can lead to better surgical outcomes and help prevent post-surgery complications. Who this helps: This helps patients undergoing hip replacement surgery.

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This study looked at how the shape of the pelvis affects surgery complications during a specific hip replacement method called the minimally invasive anterolateral approach. Out of 310 patients, 10 (3.2%) experienced issues such as fractures or difficult access during surgery, and those having complications had a much lower average pelvic shape measurement (39.4°) compared to those without problems (56.9°). Understanding these anatomical factors matters because it helps identify which patients might be at higher risk for complications during hip replacement surgery. Who this helps: This helps doctors better assess and prepare patients for hip replacement surgery.

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This study looked at how two parts of a hip implant—the acetabular cup and the femoral stem—affect the position of the hip joint during different movements like sitting, standing, and bending. Researchers found that the angle of the femoral stem had a bigger impact on the hip's movement than the angle of the acetabular cup, particularly during activities such as sitting and squatting, with significant findings at a statistical level (P = .0001). This is important because it shows that considering just the cup's position when evaluating hip function is not enough; both parts need to be examined for better patient outcomes. Who this helps: This helps patients who have hip implants and the doctors treating them.

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This study looked at how changes in the angle of the pelvis can lead to hip dislocation after hip replacement surgery. Researchers used computer simulations to find that a change in pelvic angle of just 1 to 3 degrees can increase the risk of the implanted hip joint getting stuck or dislocating, especially during movements like pivoting. However, using larger hip components significantly reduces this risk, with larger femoral heads showing a much lower chance of impingement. Who this helps: This benefits patients who have undergone hip replacement surgery and doctors who perform these procedures.

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This study looked at how posture changes after hip replacement surgery in 139 patients. Researchers found that after the surgery, the overall posture improved, with the global sagittal angle (GSA) decreasing from about 5.4 to 4.3 degrees and the sagittal vertical angle (SVA) decreasing from 5.4 to 4.2 degrees in patients with low pelvic incidence. Understanding these changes is important because it helps doctors predict how hip surgery can affect a patient's overall posture and mobility. Who this helps: This helps patients undergoing hip replacement and their doctors by providing insight into expected post-operative outcomes.

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This study looked at how the position of the pelvis and spine changes when patients move from standing to sitting, particularly after undergoing total hip replacement surgery (THA). Researchers found that, on average, the shift in balance (measured as sagittal spinopelvic translation, or SSPT) decreased from 2.2 cm before surgery to 1.2 cm afterward, indicating changes in how patients' bodies adjust post-surgery. This is important because understanding these changes can help prevent complications like hip dislocations after THA, especially in patients with certain pelvic shapes. Who this helps: This research benefits patients who have had hip replacement surgery.

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Men taking certain blood pressure medications (alpha-1 blockers) before hip or knee replacement surgery were less likely to develop urinary retention—the inability to urinate—after their operation, and they went home about a day earlier than men not taking these drugs. Researchers compared 229 men already on these medications with 330 men who weren't, and found the medicated group had a 12% lower risk of post-operative urinary retention and spent an average of 3.8 days in the hospital instead of 4.7 days. This matters because urinary retention is a common and uncomfortable complication after joint replacement surgery, so doctors might now consider keeping male patients on these medications before surgery rather than stopping them, potentially speeding up recovery and going home.

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This study looked at how different methods to prevent blood clots after hip and knee surgeries are used and how effective they are. Out of over 22,000 surgeries examined from 2014 to 2016, 54.6% of patients received more aggressive treatments, while 45.4% had less intense options like aspirin. The findings showed that patients using less aggressive methods had fewer complications, with 95.5% of them experiencing no issues compared to 93.0% of those on more aggressive treatments, which also had higher rates of bleeding and clot-related problems. Who this helps: Patients undergoing hip and knee surgeries benefit from this information as it guides decisions on safer blood clot prevention strategies.

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Researchers tested whether giving men the drug tamsulosin before hip or knee replacement surgery would prevent urinary retention (inability to urinate) after surgery, a common complication. They gave some patients tamsulosin and others a placebo for several days before and after surgery, and found that about one-third of both groups developed urinary retention—the drug made no meaningful difference. The study concludes that tamsulosin doesn't work as a preventive measure for this post-surgery problem, so doctors shouldn't expect it to help male patients avoid this complication after hip and knee replacements.

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This study looked at how well patients with Parkinson's disease (PD) do after total hip replacement surgery using specific types of implants. Out of 59 patients, most experienced good to excellent pain relief two years after surgery, with 53 out of 57 reporting improvement. However, many patients saw an increase in disability over time, with 68% reporting a decline in their activities during their most recent check-up. Who this helps: This research benefits patients with Parkinson's disease who may need hip surgery, as well as their doctors in making surgical decisions.

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This study looked at how patients feel about the length of their legs after having hip replacement surgery and whether their feelings match what doctors see in measurements. Researchers found that the actual length of the leg bone did not correlate with the patients' perception of leg length differences. However, factors like knee alignment, pelvic tilt, and foot height did seem to affect how patients perceived their leg length. This is important because it highlights that patients’ concerns about leg length are based on multiple aspects, not just the length of the bone itself. Who this helps: This helps patients who have had hip replacement surgery and their doctors in understanding and addressing leg length concerns.

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This study looked at how well patients do after surgery to fix their knee extension mechanism using a piece of Achilles tendon from a donor, following total knee replacement surgery. Sixteen patients were followed for an average of about 45 months, and the results showed that after surgery, these patients had an average knee movement of 105 degrees and a slight lag in knee extension. While this surgery generally worked well, it still significantly affected patients' overall knee function. Who this helps: This research benefits patients recovering from total knee replacement who experience tendon injuries.

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Researchers looked into how well patients do after total hip replacement surgery if they had previously undergone a minimally invasive surgery for hip impingement. They compared 39 patients who had both surgeries to 39 similar patients who only had the hip replacement. The results showed that, overall, there were no significant differences in recovery metrics, except for slightly better walking scores for the second group three days after surgery. This means that having had the earlier hip surgery doesn’t negatively affect the success of a later hip replacement. Who this helps: This helps patients needing hip replacement surgery after earlier hip treatments.

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This study looked at how accurately two-dimensional (2D) and three-dimensional (3D) imaging techniques measure the angle of the knee and surrounding bones in patients referred for hip or knee pain. Researchers found that 3D imaging often showed different results than 2D imaging, with 51% of the cases having more outward (valgus) alignment and 49% showing more inward (varus) alignment. They also noted that about 20% of patients might face inaccuracies when using 2D images, particularly if they have specific knee positioning issues. Who this helps: This information benefits orthopedic surgeons and patients who need accurate assessments of knee alignment.

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This study examined how spinal fusion surgery affects the position of hip implants in patients when standing and sitting. Researchers looked at 93 patients with spinal fusion and 150 without it, finding that spinal fusion limited the movement of the hip implant during this transition. Specifically, patients with spinal fusion showed less change in their pelvic tilt and hip cup angles—7.9 degrees compared to 18.4 degrees for controls—indicating that spinal fusion affects how well the body adapts to different positions. Who this helps: This information is valuable for doctors treating hip surgery patients with a history of spinal fusion.

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This study focused on the positions of the hip and pelvis in people who had undergone total hip replacement surgery. Researchers found that after surgery, the angle of the hip joint (acetabular anteversion) increased, while the angle of the thigh bone (femoral neck anteversion) decreased, but these angles often fell outside the recommended "safe zone" when patients were standing. This is important because it suggests that the positioning guidelines based on lying down do not apply well when patients are standing, which could impact their recovery and risk of dislocation. Who this helps: This helps patients who have undergone hip replacement surgery, as well as their doctors in planning and assessing their treatment.

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Researchers looked at 29 organ transplant recipients who had hip or knee replacement surgery and tracked what went wrong afterward. Nearly half of the hip replacement patients and a third of the knee replacement patients experienced complications within 90 days, with infections being particularly common in knee replacements—and notably, no patients died. The study shows that organ transplant recipients face higher rates of infection and other problems after joint replacement surgery compared to the general population, likely because their immune systems are weakened by anti-rejection medications. Doctors need to take extra precautions when planning joint replacement surgery for transplant patients, working closely between surgical and medical teams to prevent infections and other complications.

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This study looked at two types of hip implants, called the PROFEMUR E and PROFEMUR Z, which are designed to work in total hip replacements. Researchers found that both implants had an 85% success rate after an average of about four years, but they discovered that the PROFEMUR E was more likely to loosen over time and had a higher risk of complications like neck fractures and metal-related issues. This is important because it suggests that these types of implants may not be the best choice for patients undergoing hip replacement surgery. Who this helps: This helps patients considering hip replacement surgeries and their doctors in choosing better implant options.

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This study looked at knee surgeries performed by orthopedic surgeons over a decade, specifically comparing those who had specialized training in adult reconstruction to those who did not. It found that trained surgeons completed 55% of total knee replacements and performed more complex surgeries, reporting fewer complications for primary knee surgeries when they did over 100 surgeries a year. This matters because it highlights the importance of specialized training and experience in improving patient outcomes after knee replacement surgeries. Who this helps: Patients undergoing knee surgeries benefit from having trained and experienced surgeons.

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This study looked at how well patients' feelings about their leg length matched up with actual measurements taken using 2D and 3D imaging while they were standing. It found that the average leg lengths measured were around 78.7 cm to 78.9 cm, and patients who had specific knee deformities were more likely to feel that their legs were unequal—up to four times more likely for certain conditions. This is important because it shows that patients’ perceptions of their leg length might be influenced more by how their knees are aligned, rather than just the length of their bones. Who this helps: This information benefits patients dealing with knee issues, as well as doctors assessing leg length discrepancies.

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This study looked at the outcomes of surgery for leg fractures in patients who have received organ transplants. Researchers found that 40.5% of patients experienced serious complications like kidney failure shortly after surgery, and 8.1% of patients died within 90 days, while 13.9% died within a year. These findings highlight the significant risks faced by transplant patients undergoing emergency surgery, which is important for improving their care and management during such critical situations. Who this helps: This helps patients with organ transplants and their doctors understand the risks of surgery.

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This study looked at how patients with lumbar spinal stenosis, a narrowing of the spine, are affected by issues in their lower limbs. Out of 373 patients, about 68% of those with only spinal issues and 61% of those with additional leg problems had a misalignment in their spine. Understanding how these imbalances are connected is important for better treatment decisions and improving patients' overall balance and function. Who this helps: This research helps spine surgeons and their patients by providing clearer insights into how spinal and leg problems are related.

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This study looked at a new imaging system called EOS to better measure the femoral offset in patients who had total hip replacement surgery. The researchers found that the 3D measurements from the EOS system provided more accurate results than traditional 2D X-rays, showing a difference of about 3 mm, which affects about 35% of patients according to 2D measurements versus only 26% with 3D. This matters because it helps doctors get more precise information, which can lead to better treatment outcomes and less unnecessary radiation exposure for patients. Who this helps: Patients undergoing hip replacement surgery.

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This study looked at how well the hips and spine work together in patients by using a special imaging system called EOS. Researchers measured how much the hips and spine can extend when people are standing still and when moving their feet in different ways. They found that the average intrinsic extension (how much the hips can extend) was 8.8 degrees, and the overall extension reserve (the ability of both hips and spine to extend together) was 8.2 degrees, with significant differences between the left and right sides of each patient. Who this helps: Patients with hip or spine issues will benefit from this improved understanding of their movement mechanics.

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This study looked at the role of a hormone called dehydroepiandrosterone sulfate in causing heart attacks in younger patients (under 50 years) compared to older patients (50 years and older). Researchers found that younger patients had significantly higher levels of this hormone, and those high levels were linked to a 2.65 times increased risk of having a heart attack early. This matters because understanding this connection could help identify young people at risk for heart problems early on. Who this helps: This helps patients, especially younger individuals at risk for heart issues.

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This study looked at how a new imaging technology, called EOS, can help doctors assess the position of hip implants in patients after surgery. Over eight years, researchers evaluated 300 patients and found that EOS provided accurate and reliable images while exposing patients to less radiation. This is important because precise imaging can help understand how different postures can affect hip implant performance and the risk of failure, especially in older patients with spinal issues. Who this helps: This helps patients undergoing hip replacement surgery and their doctors.

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This study looked at how effective venous foot pumps are in preventing blood clots in patients who have undergone hip or knee surgery. Researchers analyzed data from 13 trials involving 1,514 patients and found that these foot pumps significantly lower the risk of serious blood clots, particularly major deep vein thrombosis and pulmonary embolism. Using these devices can be a safer alternative to medication alone, reducing complications related to more potent blood thinners. Who this helps: This benefits patients recovering from joint surgery.

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This study looked at the outcomes of hip and knee surgeries in patients with hepatitis C, focusing on complications after these procedures. Out of 71 hepatitis C patients, 15% faced wound issues and 10% had mechanical problems following hip surgery, compared to only 3.8% and 3.8% of the matched control group without hepatitis C. Similarly, 9.4% of hepatitis C patients had complications after knee surgery versus 4.7% in the control group. This matters because patients with hepatitis C may have more problems after joint surgeries, indicating that doctors should inform them about these risks before the operations. Who this helps: This helps patients with hepatitis C considering joint surgeries.

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This study looked at how different methods of performing total knee surgery affect patients' mental functioning after the operation. Researchers followed 95 patients total, divided into those who had computer-assisted surgery and those who had traditional surgery. They found that the mental performance scores were quite similar between the two groups, with scores of 88.9 for the computer-assisted group and 89.3 for the traditional group right after surgery, and 95.3 versus 96.3 at six months later, showing no significant difference. This matters because it suggests that using technology for knee surgery may not significantly impact patients' cognitive health post-surgery. Who this helps: This helps both patients and doctors in understanding the effects of surgery methods on cognitive recovery.

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This study looked at patients with severe hip arthritis to see how often they have lower back pain before and after hip replacement surgery. Out of 344 patients, 49.4% reported lower back pain before the surgery, and 66.4% of those who had back pain felt better after the surgery. However, 20% of patients who did not have back pain before developed it within a year after the surgery, often due to existing spine issues. Who this helps: This research benefits patients undergoing hip replacement surgery.

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This study looked at two different surgical methods for hip replacement surgery in 100 patients. The group that had the surgery using the direct anterior approach reported better physical and mental health outcomes within the first year, while both groups had similar results by the two-year mark. This matters because it highlights how choosing the right surgical approach can lead to better early recovery for patients. Who this helps: Patients undergoing hip replacement surgery.

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This study looked at the long-term results of using special bioabsorbable screws to fix the syndesmosis, a key ligament in unstable ankle injuries. Out of 75 patients treated, 93% showed good improvement, with an average ankle function score of 90 out of 100 and very low pain levels. Importantly, none of the patients had signs of instability or other complications after the treatment. Who this helps: This benefits patients with unstable ankle injuries by providing an effective treatment option that leads to good recovery.

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This study looked at how effective antibiotic-impregnated cement is in preventing infections after total hip replacement surgeries. It analyzed data from 19 studies involving over 36,000 surgeries and found that using antibiotic cement reduced the risk of deep infections from 2.3% to 1.2% in primary hip replacements and cut infection rates by about 40% in revision surgeries. This matters because lower infection rates can lead to better outcomes and fewer complications for patients. Who this helps: Patients undergoing hip replacement surgeries.

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This study looked at modern rotating hinged total knee replacements in 43 patients who had severe knee problems and often previous surgeries. Overall, the patients experienced less pain and improved function, but there were notable complications, with 22% of prostheses failing within the first year and 31.8% failing by the fifth year. Because of these complications, it's recommended to use this type of knee replacement mainly for older, less active patients. Who this helps: This helps elderly and sedentary patients in need of knee surgery.

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This study looked at how patient education and rehabilitation before and after hip surgery affect recovery from minimally invasive hip replacement surgery. Researchers found that patients who received more support and guidance had better functional improvements and were more satisfied after the surgery, regardless of the incision size used in the procedure. This matters because it shows that preparing patients properly can lead to better outcomes than just focusing on the surgical technique itself. Who this helps: This helps patients undergoing hip replacement surgery.

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This study compared two types of surgery for treating severe arthritis in the big toe joint: arthrodesis (which fuses the bones) and metallic hemiarthroplasty (which replaces part of the joint). The results showed that 27 patients who had arthrodesis experienced much less pain (only 0.7 out of 10) and higher overall satisfaction compared to the 21 patients with hemiarthroplasty, who reported an average pain level of 2.4 and had higher failure rates (24% failed the procedure). This information is important because it indicates that arthrodesis is a more reliable option for improving quality of life in these patients. Who this helps: This helps patients suffering from severe osteoarthritis in their big toe.

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This study looked at using a modified locking plate, specifically a 3.5-mm proximal humeral plate, to help fuse bones in the ankle and foot for patients with various conditions. Out of 17 patients, 16 achieved successful fusion, resulting in a 94% success rate, with most patients experiencing significant improvement in their foot function after surgery. This is important because it shows that this new method can effectively stabilize the bones in patients with weak bones and provides a strong alternative for surgical treatment. Who this helps: This benefits patients with conditions affecting their foot and ankle, such as arthritis and neuropathy.

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The study focused on the outcomes of hip replacement surgeries in patients over 80 years old and compared them to a younger group. It found that patients over 80 had a significant improvement in hip function, with their scores rising from an average of 47 to 85 points after surgery, which is similar to the younger group who improved from 44.3 to 87.9 points. However, the older patients faced a higher overall death rate of 58.8% within about 5 years post-surgery, even though most had well-functioning hips at the time of death. Who this helps: This research benefits elderly patients considering hip replacement surgery and their doctors.

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This study looked at two groups of patients: those who had both hips replaced in one surgery (bilateral hip replacement) and those who had one hip replaced at a time (unilateral hip replacement). It found that both groups had similar rates of serious complications and deaths within 90 days. However, people who had both hips replaced in one go needed more blood transfusions and had lower blood levels when they left the hospital. Who this helps: This research benefits patients considering hip replacement surgery, helping them understand the risks associated with having both hips done at once.

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This study looked at the opinions of expert surgeons and patients on minimally invasive hip surgery, specifically hip replacements (THA). It found that while 80% of surgeons perform this type of surgery, two-thirds only consider it minimally invasive if it involves a small incision. Additionally, 67% of patients had never heard of this surgical option, and 80% of their understanding about it was either incorrect or unsupported by research. This matters because better communication and education about minimally invasive options can lead to more informed decisions for patients. Who this helps: This helps patients considering hip surgery.