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Sesamoid Problems A Patient’s Guide to Sesamoid Problems Institute of Sports Medicine & Orthopaedics 20295 NE 29th Place, Ste 300 Aventura, FL 33180 Phone: (786) 629-0910 Fax: (786) 629-0920 [email protected] Compliments of: Institute of Sports Medicine & Orthopaedics DISCLAIMER: The information in this booklet is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailmentsA Patient's or treatments. Guide The information to Sesamoid should NOT be usedProblems in place of a visit with your health care provider, nor should you disregard the advice of your health care provider because of any information you read in this booklet. Institute of Sports Medicine & Orthopaedics The Institute of Sports Medicine and Orthopaedics, P.A.. was created on the premise of "primum non nocere" â?? first do no harm. Our philosophy is to accurately evaluate and diagnose patients and guide them through their journey to improvement. Institute of Sports Medicine & Orthopaedics 20295 NE 29th Place, Ste 300 Aventura, FL 33180 Phone: (786) 629-0910 Fax: (786) 629-0920 [email protected] http://www.instituteofsports.com All materials within these pages are the sole property of Medical Multimedia Group, LLC and are used herein by permission. eOrthopod is a registered trademark of Medical Multimedia Group, LLC. 2 Compliments of: Institute of Sports Medicine & Orthopaedics A Patient's Guide to Sesamoid Problems side of this joint. There is one sesamoid bone on each side of the base of the big toe. The muscles that bend the big toe down (the toe flexors) pass under- neath the main joint of the big toe, crossing over the bump formed by the sesamoid bones. Introduction This bump acts as a fulcrum point for the toe flexors, giving these muscles extra leverage Two pea-sized bones, called sesamoids, and power. The sesamoids also help absorb are embedded within the soft tissues under pressure under the foot during standing and the main joint of the big toe. Even though walking, and they ease friction in the soft they are small in size, the sesamoids play an tissues under the toe joint when the big toe important role in how the foot and big toe moves. work. If the sesamoids are injured, they can be a source of severe pain and disability. This guide will help you understand • how the sesamoid bones in the foot work • how sesamoiditis develops • what can be done for the condition Anatomy Where are the sesamoids, and what do they do? The main Causes joint of the big How does sesamoiditis develop? toe forms Sesamoid pain can develop a number of the inside different ways. When the tissues around the edge of the sesamoid bones become inflamed, doctors ball of the call the condition sesamoiditis. Sesamoiditis foot. The is often caused by doing the same types of two small toe movements over and over again, which sesamoid happens in activities like running and dancing. bones are Fractures can also cause pain in the sesamoids. located on Fractures can occur when a person falls and the under- Sesamoid bones lands bluntly on the ball of the foot. Stress 3 Compliments of: Institute of Sports Medicine & Orthopaedics A Patient's Guide to Sesamoid Problems fractures can also occur in the sesamoid bones. Symptoms Stress fractures are usually caused by the strain What does sesamoiditis feel like? of overworking the soft tissues. Athletes most often suffer stress fractures of the sesamoids People with sesamoid problems usually feel because of the heavy and repeated demands vague pain under the main joint of the big that training places on the soft tissues of the toe. The sesamoids typically feel tender when foot and big toe. touched. Movement of the big toe is often Arthritis can develop where the sesamoids limited. People tend to notice pain mostly glide under the bone of the big toe. The when their big toe is stretched upward, which sesamoid bones create a joint where they can happen when the back foot pushes off for move against the bone of the big toe. Like the next step. Occasionally the joint catches other joints in the body, this joint can also or pops. The develop arthritis. Arthritis is more likely to be catching or a problem in people who have high arches in popping is their feet. The high arch causes the main joint often followed of the big toe to become rigid. This focuses by increased strain and pressure on the sesamoids. pain, which usually eases In some cases, blood supply to the sesamoid after resting. bone is decreased. This condition is called Some people osteochondritis. Osteochondritis causes a piece report feelings of numbness in the web of the first two toes. Diagnosis How do doctors identify this problem? Your doctor will ask many questions about your medical history. You will be asked about your current symptoms and whether you've of the bone to actually die. The body's attempts had other foot and joint problems in the past. to heal the area may build up extra calcium Your doctor will then examine your painful around the dead spot. toe by feeling it and moving it. This may hurt, but it is important that your doctor locates the Sometimes sesamoid pain comes from extra source of the pain and determines how well the tissue under the big toe joint, similar to a corn. Doctors call this extra tissue an intractable toe is moving. You may also be asked to walk plantar keratosis. back and forth. Your doctor will probably order an X-ray. The axial view gives doctors a good idea whether there are problems in the sesamoids. To get an axial view, the X-ray is angled to show the space between the sesamoids and the bottom part of the big toe joint. 4 Compliments of: Institute of Sports Medicine & Orthopaedics A Patient's Guide to Sesamoid Problems The X-ray image may show a sesamoid bone about. Shoes with low heels may also ease the that looks like it is divided into two or more pressure. Occasionally, doctors inject steroid separate bones, as though it were fractured. medication into the soft tissues around the sesa- This is normal in about 10 percent of people. moids to decrease the inflammation. If the small space between the bone pieces is smooth, it's probably okay. If the space is jagged, there could be a fracture. Further tests may be needed to make the diagnosis. Doctors may order a bone scan when the X- ray appears normal, or if there is a question about whether the division inside the bone is a fracture. A bone scan involves giving intrave- nous agents that travel through the blood and then show up in a scan. The agents accumulate in areas where there is a great deal of stress to the bone tissue. More intravenous agents will Some doctors place a patient with a fracture in a likely appear on the painful sesamoid bone cast for about six weeks. Afterward, the patient than on the sesamoids of the other foot. must wear a stiff-soled shoe until the pain goes Your doctor may want to do other imaging away. The stiff sole of the shoe keeps the toe tests, such as magnetic resonance imaging steady and prevents it from bending while you (MRI). An MRI scan may help determine walk. Other doctors prefer not to cast fractures. whether the bone is infected. More testing may Instead, they have their patients wear a stiff-soled help to make the final diagnosis. shoe right away. Stress fractures are a bit more complicated. Treatment If a stress fracture doesn't heal, it becomes a What can be done for the condition? nonunion fracture, an extremely painful condi- Many cases of sesamoiditis can heal tion that can cause significant disability. If the completely with careful treatment. There are problem isn't better in eight to 12 weeks, surgery two methods for treating sesamoid problems, may be needed to remove the pieces of unhealed nonsurgical treatment and surgery. Surgery is bone. To avoid the problems of a nonunion most often used as a last resort, when other fracture, some doctors use a cast and require forms of treatment aren't helping. patients to avoid putting any weight on the foot for up to eight weeks. Nonsurgical Treatment Surgery Doctors prefer to begin with nonsurgical treat- ment. Your doctor may recommend treating If surgery becomes necessary, several proce- the inflammation and pain of sesamoiditis with dures are available to treat sesamoid problems. nonsteroidal anti-inflammatory drugs (NSAIDs), Which one your surgeon chooses will depend such as aspirin and ibuprofen. Special padding in on your specific condition. the shape of a J can be placed inside your shoe Bone Removal to ease pressure on the sesamoids as you stand and walk. You may need to limit the amount of Your surgeon may recommend removing part weight placed on your foot when you're up and or all of the sesamoid bone. When bone is 5 Compliments of: Institute of Sports Medicine & Orthopaedics A Patient's Guide to Sesamoid Problems removed from only one sesamoid, the other to leave a sesamoid bone can still provide a fulcrum smooth shell. point for the toe flexors. However, if both of This surgery the bones are taken out, the toe flexors lose is easier on necessary leverage and can't function. When the body this happens, the big toe will either bend up than proce- like a claw or slant severely toward the second dures that toe. Thus, surgeons usually try to avoid taking completely both sesamoids out.
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