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SAN DIEGO – .
In the 1990s, clinicians used nonabsorbable sutures for thread lifts, including polypropylene-barbed threads, which caused adverse events ranging from extrusion and migration to thread expulsion, dimpling, granuloma formation, and prolonged pain, Dr. DiGiorgio, a laser and cosmetic dermatologist who practices in Boston, said at the annual Masters of Aesthetics Symposium. As a result, the Food and Drug Administration withdrew its approval of contour thread aesthetic procedures in 2009. Since then, the development of absorbable threads made from a hybrid of poly-l-lactic acid (PLLA) and polyglycolide/l-lactide (PLGA), and from polydioxanone (PDO) has led to renewed interest in thread lift procedures.
While a surgical facelift remains the gold standard, “we have some options to offer patients for noninvasive tightening,” Dr. DiGiorgio said. “We have devices that provide minimal downtime and are less costly, but results are inconsistent. Thread lifts, or suspension sutures, also have minimal downtime and are less costly, but the [results are] subtle and not long lasting.”
PLGA/PLLA threads consist of an 18% PLGA and 82% PLLA monofilament with bidirectional cones that shift the tissue. They are available in 8, 12, or 16 cones spaced 5-8 mm apart on either side of a 2-cm central cone-free area. “There is a 12-cm, 23-gauge needle on either side of the thread, to allow for insertion,” she explained. “These cones stimulate types I and II collagen, which results in collagenesis. The skin encapsulates the cones, resulting in lasting volume and contour.”
PDO threads, meanwhile, are biodegradable by hydrolysis over 4-8 months. They are inserted with a cannula or a needle and vary based on length, diameter, twined vs. braided, coned vs. barbed, and twisted vs. smooth. “The barbed PDO threads are what I use the most,” Dr. DiGiorgio said. “They provide slight tissue repositioning by anchoring and gripping.”
In 2019, researchers in Korea published results of a study that evaluated the collagen-producing effects of powdered PDO injection, compared with PLLA injection, in a murine model. They found that while both PDO and PLLA induced granulomatous reactions and collagen formation, PDO resulted in slightly more collagen formation than PLLA.
Dr. DiGiorgio, who transitioned to using PDO threads after first using the PLLA/PLGA threads, said that both are effective. “I find PDO threads to be easier. They’re less costly for me, they’re less costly for the patient, and the results are about equivalent.”
Absorbable threads are indicated for the cheek, jawline, neck, lips, forehead, and brow. She finds them most useful “for the lower face, below the nasolabial fold down to the jawline, for improvement of the jowls,” she said. “I don’t think they really work on the neck.”
As with any cosmetic procedure, patient selection is key. According to Dr. DiGiorgio, the patient should have specific and segmental areas of facial laxity amenable to lifting and recontouring along a straight-line vector, adequate dermal thickness, and appropriate expectations for the level of correction. “I like to re-volumize with filler before performing thread lifts to make sure that volume is restored, because you can’t really provide lift to someone with significant volume loss,” she said.
Procedural tips
Prior to the procedure, Dr. DiGiorgio marks the area to be treated while the patient is seated upright and holding a mirror. Then, she pulls back the amount of skin laxity the thread is going to correct. The plane of insertion for barbed threads is at the superficial musculoaponeurotic system (SMAS), and she typically uses 3-4 threads on each side of the face.
“How do you know you’re in the right plane?” If the patient is experiencing significant pain, “you’re too deep, and it’s not going to work,” she said. “You can see if the thread is too superficial as you do more of these.”
After the procedure she asks the patient to sit up prior to trimming the threads. “I take a look in the mirror with them and have them smile and make funny faces to see if there is any dimpling or crimpling, which is probably the most common side effect,” she said. “If I see that, I will pull the thread immediately, so we don’t have a problem. It’s a little uncomfortable to pull the thread but not more uncomfortable than the procedure itself, but I think it’s worth doing to avoid having a dimple or a crimple that can last up to a year.”
In her clinical experience, thread lifts last about 8-10 months. “I find that my patients will come in about once a year for this procedure, and the treated area feels tight afterward,” Dr. DiGiorgio said. “I think that sensation of feeling tight also provides satisfaction to the patient. Results are very subtle. It’s tissue repositioning; it is not a facelift. There’s not really any downtime, but further studies are required to see if threads are safe and effective in the long-term.”
In an interview after the meeting, she noted that the learning curve for thread lifts is variable, as with any new procedure a physician chooses to add to his or her practice. “It’s important to see these patients in follow-up 2 weeks after the procedure consistently, especially when someone first starts performing the procedure,” she recommended. “These patients are usually coming in to see me for other treatments, so I see them at regular 3-month intervals regardless. You begin to get a feel for what angles work and why and how to optimize the results. As with any procedure, the more experience you have performing the procedure will result in improved outcomes and improved management.”
Dr. DiGiorgio disclosed that she has been an advisory board member for Quthero and she holds stock options in the company. She is a consultant for Revelle and has received equipment from Acclaro.
SAN DIEGO – .
In the 1990s, clinicians used nonabsorbable sutures for thread lifts, including polypropylene-barbed threads, which caused adverse events ranging from extrusion and migration to thread expulsion, dimpling, granuloma formation, and prolonged pain, Dr. DiGiorgio, a laser and cosmetic dermatologist who practices in Boston, said at the annual Masters of Aesthetics Symposium. As a result, the Food and Drug Administration withdrew its approval of contour thread aesthetic procedures in 2009. Since then, the development of absorbable threads made from a hybrid of poly-l-lactic acid (PLLA) and polyglycolide/l-lactide (PLGA), and from polydioxanone (PDO) has led to renewed interest in thread lift procedures.
While a surgical facelift remains the gold standard, “we have some options to offer patients for noninvasive tightening,” Dr. DiGiorgio said. “We have devices that provide minimal downtime and are less costly, but results are inconsistent. Thread lifts, or suspension sutures, also have minimal downtime and are less costly, but the [results are] subtle and not long lasting.”
PLGA/PLLA threads consist of an 18% PLGA and 82% PLLA monofilament with bidirectional cones that shift the tissue. They are available in 8, 12, or 16 cones spaced 5-8 mm apart on either side of a 2-cm central cone-free area. “There is a 12-cm, 23-gauge needle on either side of the thread, to allow for insertion,” she explained. “These cones stimulate types I and II collagen, which results in collagenesis. The skin encapsulates the cones, resulting in lasting volume and contour.”
PDO threads, meanwhile, are biodegradable by hydrolysis over 4-8 months. They are inserted with a cannula or a needle and vary based on length, diameter, twined vs. braided, coned vs. barbed, and twisted vs. smooth. “The barbed PDO threads are what I use the most,” Dr. DiGiorgio said. “They provide slight tissue repositioning by anchoring and gripping.”
In 2019, researchers in Korea published results of a study that evaluated the collagen-producing effects of powdered PDO injection, compared with PLLA injection, in a murine model. They found that while both PDO and PLLA induced granulomatous reactions and collagen formation, PDO resulted in slightly more collagen formation than PLLA.
Dr. DiGiorgio, who transitioned to using PDO threads after first using the PLLA/PLGA threads, said that both are effective. “I find PDO threads to be easier. They’re less costly for me, they’re less costly for the patient, and the results are about equivalent.”
Absorbable threads are indicated for the cheek, jawline, neck, lips, forehead, and brow. She finds them most useful “for the lower face, below the nasolabial fold down to the jawline, for improvement of the jowls,” she said. “I don’t think they really work on the neck.”
As with any cosmetic procedure, patient selection is key. According to Dr. DiGiorgio, the patient should have specific and segmental areas of facial laxity amenable to lifting and recontouring along a straight-line vector, adequate dermal thickness, and appropriate expectations for the level of correction. “I like to re-volumize with filler before performing thread lifts to make sure that volume is restored, because you can’t really provide lift to someone with significant volume loss,” she said.
Procedural tips
Prior to the procedure, Dr. DiGiorgio marks the area to be treated while the patient is seated upright and holding a mirror. Then, she pulls back the amount of skin laxity the thread is going to correct. The plane of insertion for barbed threads is at the superficial musculoaponeurotic system (SMAS), and she typically uses 3-4 threads on each side of the face.
“How do you know you’re in the right plane?” If the patient is experiencing significant pain, “you’re too deep, and it’s not going to work,” she said. “You can see if the thread is too superficial as you do more of these.”
After the procedure she asks the patient to sit up prior to trimming the threads. “I take a look in the mirror with them and have them smile and make funny faces to see if there is any dimpling or crimpling, which is probably the most common side effect,” she said. “If I see that, I will pull the thread immediately, so we don’t have a problem. It’s a little uncomfortable to pull the thread but not more uncomfortable than the procedure itself, but I think it’s worth doing to avoid having a dimple or a crimple that can last up to a year.”
In her clinical experience, thread lifts last about 8-10 months. “I find that my patients will come in about once a year for this procedure, and the treated area feels tight afterward,” Dr. DiGiorgio said. “I think that sensation of feeling tight also provides satisfaction to the patient. Results are very subtle. It’s tissue repositioning; it is not a facelift. There’s not really any downtime, but further studies are required to see if threads are safe and effective in the long-term.”
In an interview after the meeting, she noted that the learning curve for thread lifts is variable, as with any new procedure a physician chooses to add to his or her practice. “It’s important to see these patients in follow-up 2 weeks after the procedure consistently, especially when someone first starts performing the procedure,” she recommended. “These patients are usually coming in to see me for other treatments, so I see them at regular 3-month intervals regardless. You begin to get a feel for what angles work and why and how to optimize the results. As with any procedure, the more experience you have performing the procedure will result in improved outcomes and improved management.”
Dr. DiGiorgio disclosed that she has been an advisory board member for Quthero and she holds stock options in the company. She is a consultant for Revelle and has received equipment from Acclaro.
SAN DIEGO – .
In the 1990s, clinicians used nonabsorbable sutures for thread lifts, including polypropylene-barbed threads, which caused adverse events ranging from extrusion and migration to thread expulsion, dimpling, granuloma formation, and prolonged pain, Dr. DiGiorgio, a laser and cosmetic dermatologist who practices in Boston, said at the annual Masters of Aesthetics Symposium. As a result, the Food and Drug Administration withdrew its approval of contour thread aesthetic procedures in 2009. Since then, the development of absorbable threads made from a hybrid of poly-l-lactic acid (PLLA) and polyglycolide/l-lactide (PLGA), and from polydioxanone (PDO) has led to renewed interest in thread lift procedures.
While a surgical facelift remains the gold standard, “we have some options to offer patients for noninvasive tightening,” Dr. DiGiorgio said. “We have devices that provide minimal downtime and are less costly, but results are inconsistent. Thread lifts, or suspension sutures, also have minimal downtime and are less costly, but the [results are] subtle and not long lasting.”
PLGA/PLLA threads consist of an 18% PLGA and 82% PLLA monofilament with bidirectional cones that shift the tissue. They are available in 8, 12, or 16 cones spaced 5-8 mm apart on either side of a 2-cm central cone-free area. “There is a 12-cm, 23-gauge needle on either side of the thread, to allow for insertion,” she explained. “These cones stimulate types I and II collagen, which results in collagenesis. The skin encapsulates the cones, resulting in lasting volume and contour.”
PDO threads, meanwhile, are biodegradable by hydrolysis over 4-8 months. They are inserted with a cannula or a needle and vary based on length, diameter, twined vs. braided, coned vs. barbed, and twisted vs. smooth. “The barbed PDO threads are what I use the most,” Dr. DiGiorgio said. “They provide slight tissue repositioning by anchoring and gripping.”
In 2019, researchers in Korea published results of a study that evaluated the collagen-producing effects of powdered PDO injection, compared with PLLA injection, in a murine model. They found that while both PDO and PLLA induced granulomatous reactions and collagen formation, PDO resulted in slightly more collagen formation than PLLA.
Dr. DiGiorgio, who transitioned to using PDO threads after first using the PLLA/PLGA threads, said that both are effective. “I find PDO threads to be easier. They’re less costly for me, they’re less costly for the patient, and the results are about equivalent.”
Absorbable threads are indicated for the cheek, jawline, neck, lips, forehead, and brow. She finds them most useful “for the lower face, below the nasolabial fold down to the jawline, for improvement of the jowls,” she said. “I don’t think they really work on the neck.”
As with any cosmetic procedure, patient selection is key. According to Dr. DiGiorgio, the patient should have specific and segmental areas of facial laxity amenable to lifting and recontouring along a straight-line vector, adequate dermal thickness, and appropriate expectations for the level of correction. “I like to re-volumize with filler before performing thread lifts to make sure that volume is restored, because you can’t really provide lift to someone with significant volume loss,” she said.
Procedural tips
Prior to the procedure, Dr. DiGiorgio marks the area to be treated while the patient is seated upright and holding a mirror. Then, she pulls back the amount of skin laxity the thread is going to correct. The plane of insertion for barbed threads is at the superficial musculoaponeurotic system (SMAS), and she typically uses 3-4 threads on each side of the face.
“How do you know you’re in the right plane?” If the patient is experiencing significant pain, “you’re too deep, and it’s not going to work,” she said. “You can see if the thread is too superficial as you do more of these.”
After the procedure she asks the patient to sit up prior to trimming the threads. “I take a look in the mirror with them and have them smile and make funny faces to see if there is any dimpling or crimpling, which is probably the most common side effect,” she said. “If I see that, I will pull the thread immediately, so we don’t have a problem. It’s a little uncomfortable to pull the thread but not more uncomfortable than the procedure itself, but I think it’s worth doing to avoid having a dimple or a crimple that can last up to a year.”
In her clinical experience, thread lifts last about 8-10 months. “I find that my patients will come in about once a year for this procedure, and the treated area feels tight afterward,” Dr. DiGiorgio said. “I think that sensation of feeling tight also provides satisfaction to the patient. Results are very subtle. It’s tissue repositioning; it is not a facelift. There’s not really any downtime, but further studies are required to see if threads are safe and effective in the long-term.”
In an interview after the meeting, she noted that the learning curve for thread lifts is variable, as with any new procedure a physician chooses to add to his or her practice. “It’s important to see these patients in follow-up 2 weeks after the procedure consistently, especially when someone first starts performing the procedure,” she recommended. “These patients are usually coming in to see me for other treatments, so I see them at regular 3-month intervals regardless. You begin to get a feel for what angles work and why and how to optimize the results. As with any procedure, the more experience you have performing the procedure will result in improved outcomes and improved management.”
Dr. DiGiorgio disclosed that she has been an advisory board member for Quthero and she holds stock options in the company. She is a consultant for Revelle and has received equipment from Acclaro.
FROM MOAS 2023