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Arthroscopic ACL Reconstruction. INR 0 INR 0
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Arthroscopic ACL Reconstruction.

The term knee reconstruction is commonly used to refer to reconstruction of the anterior cruciate ligament (ACL).This ligament is in the middle of the knee and controls the movement of the two main bones of the knee, the tibia and femur (Fig.1). It is particularly important for twisting and turning movements that occur in football, netball, basketball and snow skiing. Rupture (tearing) of the ACL can therefore lead to instability. This is felt as giving way with certain activities, usually those that involve a sudden change in direction. When giving way occurs, there is a risk of damage to the cartilages (menisci) and this in turn puts the knee at risk of developing premature osteoarthritis. Although it is an aim of reconstructive surgery, it is unclear whether anterior cruciate ligament reconstruction actually reduces the risk of developing osteoarthritis. The main reason for reconstructing the ACL is to stop or to prevent instability. In many situations this instability can be predicted soon after the injury occurs and a decision made to operate without waiting for the instability to develop. However, in other cases it may be less clear and people may choose to rehabilitate their knee and try to return to their normal activities without surgery. Whether they can get back to their normal activities without surgery depends on many factors – how much healing of the torn ACL takes place, other injuries to the knee, the intrinsic stability of the knee, rehabilitation, and the individual’s ability to modify their activities. It is important to remember that ACL reconstruction is almost always an elective procedure. From a medical point of view, there is no rush to make a decision, provided the knee is not giving way.If ACL reconstruction is to be performed, it is essential to prepare the knee for surgery. The key is to get back full extension (straightening) of the knee. Although it may feel that there is something in the front of the knee that is blocking full extension, this is rarely the case, particularly after the initial injury. A key component is to reduce swelling by regular icing and wearing a compression bandage or sleeve. Having the heel supported on a rolled towel and using the quadriceps muscle at the front of the thigh to lock the knee out straight is the key exercise (Fig.2). Flexion (bending) is also important and riding an exercise bike will help this, together with strengthening the quadriceps muscle. SURGERY The technique for reconstruction involves taking a piece of tendon (usually from the same knee, but sometimes from the other knee) and using this to replace the torn ligament (Fig.3). The tendon graft is usually taken from the hamstrings on the inside of the thigh or from the patellar tendon at the front of the knee. It can also be taken from the quadriceps tendon, just above the patella (kneecap). Occasionally allografts are used. These are tendon grafts taken from cadavers (people who have died). In recent years there has been increased interest and media coverage of synthetic grafts, specifically the LARS device. The role of the LARS remains unclear, but there are concerns because of problems seen when synthetic ligaments were used in the late eighties.From your point of view, there is a vertical or oblique scar on the front of the knee together with two small scars from stab incisions that allow the arthroscope and surgical instruments to be introduced into the knee. If additional surgery is required to repair a cartilage, a further incision may be made towards the back of the knee on either the outside or inside. A small area of the skin on the outside (lateral side) of the knee is usually numb after surgery. Sometimes there is numbness on the shin. Although the numbness can be permanent, the area of numbness usually gets smaller with time and does not usually cause any problems. Surgery is usually performed under a spinal anaesthetic. At the end of the operation the area affected by the surgery is infiltrated with local anaesthetic. Sometimes an epidural block or a femoral nerve block is also used. If this is the case you will notice numbness and tingling in your legs when you wake up. This gradually wears off over 8 hours or so. After leaving the recovery area pain control can usually be achieved with tablets alone. Anti-inflammatory medication is often used to help with pain control, so it is important that you tell your anaesthetist if you have ever had a history of stomach ulcers or bleeding, as this medication may not be appropriate in that situation. You will be awake within 20 minutes of the operation and should be able to eat and drink after approximately 2 to 3 hours. On return to the ward after the operation, an inflatable cuff (Cryo-Cuff) is placed around the knee. This is filled with iced water to help control swelling. Patients find this very comfortable. Depending on your surgeon’s preference, you may have 1 or 2 drains placed in the knee joint so that unwanted blood does not accumulate and inhibit recovery. These drain tubes are usually removed the day after surgery. A physiotherapist will teach you exercises to get the knee out straight (extension) and regain function in the quadriceps muscle at the front of the thigh as well as make sure that you are confident walking with the aid of crutches. A brace or splint is usually required. You will usually go home on the morning after surgery. Following surgery you will be provided with information regarding rehabilitation. This outlines the rate of progression. Rehabilitation can be undertaken either independently or under the supervision of a physiotherapist.It is very important to rest during the first week after surgery in particular. This means spending most of the time on a bed or couch with the leg elevated and regular icing of the knee. The main aim during this phase is to restore full extension of the knee. The time off work that is required will vary according to your job. If it is mainly deskwork, then patients may be able to work within 2 weeks. If heavy manual work is involved, it may be 2 to 3 months before one can consider return to work. In general, crutches are required for up to 2 weeks. In terms of returning to sport most patients are able to recommence some of their activities by 4 months. By 6 months the majority of patients are able to gradually resume training for their original sports with a view to returning to play from 9 or 10 months. However, improvement continues for another 6 to 12 months after that. COMPLICATIONS While most patients are happy with the outcome of their surgery, there are nonetheless some risks, which need to be borne in mind. ANAESTHETICS Always involve some kind of risk, but these are statistically minimal. INFECTION Antibiotics are given at the time of surgery to reduce the risk of infection. Despite this infection of the wound can occur. This is usually easily treated with antibiotics. However, sometimes the infection gets into the joint. This is a serious complication and requires admission to hospital, additional surgery and intravenous antibiotics. VENOUS THROMBOSIS A thrombosis is a blood clot that may form in the veins in the legs. This can cause persistent swelling of the foot and ankle and can also be dislodged and be carried to the lungs (pulmonary embolus), resulting in chest pain and breathing difficulties. However, the risk of thrombosis is statistically very low.DONOR SITE If you have a hamstring graft it is very common to experience the sensation of tearing something at the back of the knee around 3 to 8 weeks after surgery. This is just stretching of the scar tissue being laid down in the tendon harvest site. Although it may be associated with some pain and bruising, this usually settles over a few days and do not affect the long-term outcome. If you have a patellar tendon graft there can be pain at the lower end of the patella. This can occur as late as 9 to 10 months after surgery but usually settles with time. HARDWARE Occasionally one of the devices used to hold the graft in place while it heals to bone may become prominent some months after surgery. If problematic, the hardware can be removed without risk to the graft. OTHER Persisting problems can occur as a result of poor compliance with rehabilitation, failure of the graft, or significant additional damage to the knee from the original injury such as torn ligaments or cartilages or osteoarthritis.

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Total Hip Replacement INR 0 INR 0
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Total Hip Replacement

The operation of a total hip replacement is a well established, long lasting procedure for relieving the pain involved with hip arthritis. This type of surgery has been used effectively now for over 40 years and remains the treatment of choice to achieve an excellent quality of life for sufferers of hip arthritis.THE PROCEDURE ANAESTHETIC The type of anaesthetic that is used for the procedure will vary according to each patient’s co-existent medical conditions and also your wishes. Our group of anaesthetists are all competent in both general and regional (spinal) anaesthetics and will discuss with you prior to the procedure the benefits and risks of each technique. SURGERY Through an incision approximately 12-15cm long centred over the side of the hip and curving gently towards the buttock, the hip joint can be entered with minimal trauma to the surrounding muscles. The hip is dislocated and the femur bone is cut through its neck to expose both the pelvic and leg sides of the joint. Depending upon the quality of the bone and the age of the patient either a cemented or cementless component is fixed to the pelvis and similarly to the femur. The ball and socket mechanism of the joint is then reconstructed with either a metal on plastic (polyethylene) articulation or ceramic on ceramic articulation. Computer navigation may be used to ensure that the leg length obtained is correct and the orientation of the components is optimal to provide for maximum range of motion of the new hip. Following the surgery you will be able to mobilize fully weight bearing on the hip the day after the procedure. You will be aided by the physiotherapist and nursing staff and taught how to safely use a frame initially and then graduate onto crutches. Your hospital stay will be between 5-7 days and depending upon your home supports and progress. Most people will be able to dispense with their crutches approximately 4-6 weeks following the surgery. During this time period you should sleep flat on your back, not cross your legs and use a seat raise for the toilet. These precautions will be emphasised by the physiotherapist during your hospital stay.All our patients are routinely put on home based physiotherapy post discharge. AFTER DISCHARGE Driving the car is not allowed for 6 weeks following the surgery and car travel as a passenger should be minimised during this period. These restrictions minimise the chance of the hip dislocating whilst the muscles and soft tissues around your hip heal. At 6 weeks following the procedure you will be reviewed by your surgeon. Most patients are then given the all clear to return to recreational walking, swimming, cycling, golf, tennis, bowls, gymnasium workouts and other recreational pursuits as desired. It is not advised that you undertake running or jumping activities following a hip replacement. FREQUENTLY ASKED QUESTIONS What are the risks involved with the procedure? There are general risks associated with any surgery, these are those of the anaesthetic (please speak to your anaesthetist prior to the operation), bleeding, blood clots (deep vein thrombosis (DVT) and pulmonary embolization (PE)), infection and vascular injury. Specific to the surgery are the risks of dislocation of the hip prosthesis, leg length inequality, fracture of the pelvis or femur, wear and loosening of the implants, audible ‘squeaking’ of the articulating components (ceramics), nerve injury. When can I return to work? Most people should be able to return to work at 6 weeks post-surgery. This may be extended if you perform a job involving heavy manual labour. When can I resume sexual activity? Sexual intercourse can safely be undertaken 6 weeks following the surgery. How long do I need to keep taking pain-killing medicine for? When you leave the hospital you will be given tablet analgesia for pain. You should take this for as long as you have pain when walking or at night. Most people are able to cease analgesics by 4 weeks following the surgery. Do I need to do physiotherapy when I go home? You will be given a sheet of exercises from the physiotherapist when you leave the hospital. You should do these exercises as instructed. You do not need to visit a physiotherapist once discharged.

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Osteoarthritis of the Knee INR 0 INR 0
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Osteoarthritis of the Knee

KNEE Osteoarthritis of the knee is a common condition and is becoming an increasingly important problem for the community as a whole. In the normal knee joint the ends of the bones are covered with a type of gristle called articular cartilage. This surface has special characteristics that make it an ideal bearing surface. The articular cartilage needs to be distinguished from the meniscus, commonly called “the cartilage” The meniscus is like a gasket around the margins of the joint and fills in the gap between the rounded end of the femur and the relatively flat surface of the tibia. Osteoarthritis is a condition where the articular cartilage breaks down and is essentially worn away leaving the underlying bone exposed. On an X-ray this appears as a loss of the space between bones. There are many factors that can contribute to the development of osteoarthritis. Some individuals probably have a hereditary predisposition to the condition, as it does seem to run in some families. Females are more at risk of developing osteoarthritis than males. Obesity is a very important contributory factor as the biomechanics of the knee are such that the effect of extra weight is magnified in the knee joint. The effect is like a stiletto heel, where all the force goes through a very small area. Injuries to the knee can also contribute to the development of osteoarthritis. Such injuries include damage to the meniscus or articular surface itself and a tear of the anterior cruciate ligament. The treatment of osteoarthritis depends on the severity of the condition, the symptoms, the lifestyle of the individual, as well as their age and general health. In general, treatment can be divided into non-surgical and surgical options. As a basic principle it is always better to try all non-surgical options before proceeding down a surgical path. NON-SURGICAL TREATMENT SIMPLE MEASURES Strengthen thigh muscles. Lose weight. Analgesics. Non-surgical treatment starts with ensuring that there is adequate strength in the muscles around the knee and in particular the quadriceps muscle at the front of the thigh, and getting one's weight back to a normal level. Obviously it is difficult for many patients with osteoarthritis of the knee to exercise because of their pain. However, riding an exercise bike is a good way of strengthening the quadriceps muscle and at the same time burning calories, which will help in efforts to lose weight. However, dietary intake also needs to be modified and it may be helpful to seek specific advice from a dietician. As one loses weight and builds up strength in the quadriceps muscle it generally becomes easier to walk and this in turn will help with losing weight. Using simple painkillers can be a very effective way of relieving symptoms and improving function. Paracetamol should be the mainstay of pain relief. Various formulations are available but the basic principle is that the total dose should not exceed 4 grams per day (8 standard 500mg tablets). It is often helpful to take a larger dose (1000 - 1500 mg) in the morning and again at night. This will help get over morning stiffness and pain and relieve night pain, two of the most troublesome symptoms of osteoarthritis. OTHER OPTIONS Anti-inflammatories. Nutraceuticals (glucosamine, chondroitin sulphate, fish oil, Lyprinol). Cortisone injection. Viscosupplementation. Anti-inflammatory medications can also provide good relief of symptoms, both pain and swelling. However, they can all be associated with significant side-effects including indigestion and stomach ulcers, aggravation of high blood pressure and heart disease, and impairment of kidney function. They should therefore not be used indiscriminately and preferably only for short-term benefit. If your knee causes you most difficulty with activities such as golf or tennis, one strategy is to take anti-inflammatory medication on the day you are playing sport and perhaps the following day but then not again until you play sport the next time. There are a number of so-called nutraceutical preparations that have become very popular. These include glucosamine, chondroitin sulphate, fish oil and green-lipped mussel extract (Lyprinol). Some individuals find that they get good relief from these types of preparations but it is difficult to predict who will respond positively to them. At present there is little in the way of good quality scientific evidence to support their use. Fortunately they do not seem to have any significant side effects, so there is little harm in trying them. It would seem logical to try only one at a time. If it is unclear whether the preparation is helping, then it is probably worth taking it for 3 to 4 months and then ceasing it. If your symptoms do not deteriorate once you stop taking the preparation then there is little reason to recommence it. There is no convincing evidence to suggest that one formulation of glucosamine is better than another, or whether the addition of chondroitin sulphate provides an additional benefit. There are two groups of injections that can also be used in the treatment of the osteoarthritis. The first are cortisone preparations and these can be used for the relief of an exacerbation of symptoms, particularly if there is significant swelling. It is probably not a good idea to have a lot of injections of cortisone into the knee, as each injection is associated with a very small risk of infection of the joint. The second group of injections are the so-called viscosupplements. These are basically preparations of hyaluronic acid, which is one of the substances that make up the articular cartilage. There is some evidence to indicate that the use of viscosupplementation provides relief that is similar to that achieved with the use of anti-inflammatory medication or cortisone injections for up to 3 to 6 months. It is very important to realise that the use of anti-inflammatory tablets, cortisone injections, or viscosupplementation does not affect the progression of osteoarthritis in the longer term. These options are simply to provide relief of pain. SURGICAL OPTIONS Surgical options can be divided into three groups: arthroscopy, realignment procedures, and joint replacement. Whilst arthroscopy is a relatively small and simple procedure and the idea of a “clean-up” operation seems attractive, there is increasing evidence to suggest that the use of arthroscopy for the treatment of the osteoarthritis provides little benefit compared to non-surgical options over a period of a couple of years. It does however still have a role in some situations. It seems to work better if there is swelling of the knee. It can be useful to address associated pathology such as a tear of the meniscus. It can also be useful by allowing unstable articular cartilage to be removed along with fragments floating in the joint. Once again, an arthroscopy is only aimed at relieving symptoms and does nothing to slow the progression of the osteoarthritis. Indeed, it occasionally seems to aggravate the process and may bring on the need for a knee replacement more quickly than if the arthroscopy had not been performed all. Realignment procedures are called osteotomies. These involve cutting the tibia or femur bone and changing the overall alignment of the leg to make it more “knock-kneed” or sometimes more “bow-legged”. The aim is to take weight away from the part of the knee that is affected by osteoarthritis. Such procedures can only be used in certain patterns of osteoarthritis and are better suited to people under the age of 55. They can however provide good long-term relief and put off the need for joint replacement, whilst at the same time allowing an individual to remain quite active. Replacement involves shaping or cutting the bone ends and applying a metal or polyethylene component to the surface. Usually both sides of the joint are replaced. One can either replace all parts of the knee, which is a total knee replacement or just one part of the knee, which is a partial replacement. Like osteotomies, partial replacement can only be used for certain patterns of osteoarthritis. In general we try to put off joint replacement procedures for as long as possible because of concerns about long-term wear and loosening. In addition, replacement procedures are only compatible with low impact sporting activities. Golf, social or doubles tennis, cycling, and snow skiing are reasonable whereas running, basketball, netball, or any type of football should not be considered, because of the risk of premature wear and loosening of the prosthesis

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