Instability of the shoulder in multiple directions is moderately often encountered, occurring normally on both sides of the body and is not related to accident or injury. The underlying difficulty is the laxity of the capsule of the shoulder and the deficiencies of these stabilising ligamentous structures. This ligament laxity shows itself in excessive joint mobility in all anatomical directions. Patients may describe joint instability as the shoulder may sublux (partial dislocation) or wholly dislocate from time to time. However, the patient may not suffer such obvious symptoms and complain only of pain.

Conservative treatment is the first line of management for this condition, with physiotherapy treatment consisting of strengthening of the muscular parts of the scapular stability and rotator cuff systems. Once conservative treatment has been attempted and not been successful then consideration can be given to surgery. Surgery can tighten up the shoulder capsule, increasing the strength of the static stabilisers. Typically surgery has been done in open technique but arthroscopic technique is become more prevalent.

The incidence of this instability problem in the general public is not obvious and shoulder instability from accidents is much more common as a secondary effect from shoulder dislocation. The shoulder instability types are classified in various ways and TUBS stands for:

* Trauma involved in the cause

* Unidirectional instability (only unstable in one direction)

* Bankart lesion presence – this is injury to the cartilage rim around the socket

* Surgery

TUBS summarises the typical shoulder picture which results from single or multiple episodes of shoulder dislocation.

The multidirectional type of shoulder dislocation is summarised by AMBRI, standing for:

* Atraumatic onset (no injury or accident to explain the onset)

* Multidirectional – the shoulder is lax in all directions

* Bilateral – both shoulders are always involved due to general laxity

* Rehabilitation – this is the initial treatment process

* I refers to the technical types of surgery and where they are performed.

The shoulder is designed for maximum mobility to allow the hands to be placed in a myriad of useful positions, usually in front of the eyes so we can see what we are doing. This mobility is extreme and at the expense of the stability of the joint, leading to instability problems under certain physical stresses.

In considering what stability of the shoulder means it is useful to think about various concepts. Balance is the concept that the head of the humerus should be centred on the centre of the glenoid socket. The rotator cuff muscles are the main controllers of this positional requirement, allowing the shoulder to be moved around by the large nearby muscles. If the rotator cuff muscles or the muscles stabilising the scapula weaken this can alter the ability to maintain balance. The muscles compress the head into the socket which is made deeper by the labrum, the cartilage rim around the socket.

The upper half of the shoulder socket adds to the resistance against upwardly movement of the head of the humerus which the rotator cuff also provides by its compressive function. Synovial fluid makes the joint surfaces wet and so they adhere to each other to a degree, the convex ball and the concave deepness of the socket combining to push any air out and create an amount of suction force holding the joint in place. A tight joint typically has a degree of negative pressure and this helps it hold together too. These methods of enhancing stability work in the mid ranges of the joint, the parts of the joint range where the ligaments are least effective.

The joint capsule acts passively to hold back excessive movement of the shoulder and keep it within safe limits, with thickened areas of the capsule developed into the ligaments of the shoulder, the most important of which is the inferior glenohumeral ligament. This does not mean that the muscles, the dynamic stabilisers of the shoulder system, are not very important in the normal function of the shoulder. Physiotherapy concentrates on strengthening and re-educating the rotator cuff and scapular stability muscles.

Jonathan Blood Smyth is the Superintendent of Physiotherapists at an NHS hospital in the South-West of the UK. He writes articles about back pain, neck pain, and injury management. If you are looking for physiotherapists in Sheffield visit his website.

Lower limb amputation is a major undertaking and greatly affects the life of the individual, adding psychological stresses to the physical efforts of rehabilitation, fitting for a new limb and learning the skills of walking again. The surgeon will plan the process so that the patient can manage the prosthesis easily, participate as soon as possible in rehabilitation and expend the lowest levels of energy in gait. The patient has to learn a large number of new skills – putting the prosthesis on and taking it off, monitoring the skin for areas of excessive pressure, walking on even and uneven surfaces and getting around when they are not wearing the artificial limb.

To manage all these skills and learn how to be as independent as possible the patients need a skilled team to manage them which includes their own doctor, the surgeon, a physiotherapist, an occupational therapist a prosthetist and perhaps an employment adviser. The number of lower limb amputations is likely to continue to rise as the elderly populations increase in more advanced industrialised countries, with ischaemic vessel disease the primary cause. The proportion of above knee to below knee amputations has changed as surgeons became more skilled at preserving the knee joint so that the present ratio is 30% above knee to 70% below knee.

The most common reason for amputation is PVD, peripheral vascular disease, and a large number of the mostly elderly patients suffer a second amputation of the other limb within three years. This elderly patient group develops problems with ischaemia which results from diabetes, often developing into peripheral neuropathy and ulcers and eventually changes due to gangrene. If the lower limb suffers trauma involving the nerves and arteries then modern treatment can often salvage the limb but this may be unhelpful in some cases as amputation would allow rehabilitation to go ahead and the achievement of early independence.

Other reasons for amputation are less common and include tumours, infections and congenital abnormalities of the lower limbs. Overall amputation is considered an operation which involves reconstruction rather than just removal of a limb, as the patient’s future life and independence is the crucial matter. The higher that the surgeon has to amputate the limb the higher levels of energy are needed for walking, with the speed of walking decreasing and the required oxygen consumption increasing. Low below knee amputation may make little difference to the energy required for gait, however once the level moves up to mid thigh the load may be over 50% more.

The energy requirements for gait are extremely important as amputated patients frequently suffer from ischaemic tissue problems or other medical conditions which lead to walking consuming much of their energy abilities. Independence in functional activities may be hard to achieve as much of their limited energy supplies is taken up with simply walking. After the amputation, due to the skin viability and ischaemic diagnosis, healing may be delayed and this can have an important bearing on the eventual outcome for the patient’s independence. The soft tissues at the site of amputation must act as the connecting point between the leg and the prosthesis.

Allowing a bony area higher up to take some of the weight transfer indirectly can be successfully integrated with weight transfer sideways through the soft tissues of the lower leg. There may still be pain issues for patients despite the many advances made in modern prosthetics. Significant pain can lead to a reduction in function, reduced use of the prosthesis and even to further surgery.

More indirect weight transfer can be accomplished by allowing a higher bony area to take some of the force with other forces being transferred across the sides of the soft tissues of the leg. Pain may still be an issue for many patients despite the great advances made in prosthetic technology. If the pain is severe enough it can lead to further surgery, reduced function and limited wearing of the artificial limb.

Jonathan Blood Smyth, editor of the Physiotherapy Site, writes articles about physiotherapy, physiotherapy, physiotherapist in northampton, back pain, orthopaedic conditions, neck pain and injury management. Jonathan is a superintendant physiotherapist at an NHS hospital in the South-West of the UK.

Acute wry neck or torticollis is relatively uncommon and precipitated typically by the sudden onset of significant neck pain which leads to reflex neck muscle contractions and the maintenance of an abnormal neck position. This abnormal posture is known as torticollis and is a sign of an underlying problem of some kind, but this article discusses an acquired torticollis secondary to an acute neck pain of mechanical origin. It is typical for patients to report they woke with severe neck pain and torticollis, with the process often assumed to be secondary to sleeping in an inappropriate position during the night.

Typical initial presentation a high level of neck pain with muscle spasms and the inability to restore the head to the central posture. A few days or up to a fortnight is enough to resolve most of these pains and treatment is analgesia, collar if needed, physiotherapy such as neck massage, neck stretching and neck exercises. When examined a patient exhibiting torticollis will keep their head flexed to the painful side to some degree and also rotated away from the painful side. The usual symptoms are stiff neck, limited range of motion and neck and scapular pain, with onset often sudden such as when hair drying with a towel or turning the head fast.

The first thing a person is aware of is the sudden pain on one side of the neck, often severe and lower in the neck. There may be pain radiating also down over the scapula and out over the shoulder. If a considerable amount of arm pain is present then this should raise the suspicion of a lesion of one of the cervical nerve roots. Nerve root problems are usually somewhat slower in onset but if the symptoms presented on waking this could be the diagnosis. The outcome is very likely to be just as good as the muscle or joint strain which is more common, but recovery typically takes longer over a period of weeks.

Examination of the patient by a physiotherapist will show a patient who is in some distress from their pain and may find sleeping difficult. They may hold the head carefully to guard against sudden movements of the painful structures. The head posture will be typically abnormal and efforts to restore the posture to normal are rewarded with strong increases in pain levels. The physio will record the neck position and the ranges of movement the patient can perform, with the results in terms of pain. The history will also be taken, to include any previous episodes and what precipitated this event, whether known or not.

It is important to enquire after any arm, scapular, thoracic and shoulder pain. The physiotherapist may need to test the C6 and C7 nerve root reflexes of the biceps and triceps muscles respectively should the situation require this and they may also test the sensibility to light touch of the skin for the same purpose. Muscle strength testing may be omitted due to the likelihood of increasing pain and the probability of an inaccurate result. The physio will include asking the standard series of exclusion questions which allow him or her to conclude the problem is mechanical and not due to medical illness.

The aim of physiotherapy for this neck condition is similar to that for all soft tissue injuries. The first goal is to reduce the pain and inflammation in the damaged tissues and so reduce the resulting muscle spasm which is perpetuating the pain. Anti-inflammatory medications and analgesics may be prescribed as to some extent the pain is the presenting problem rather than some underlying abnormality. Physiotherapists may use ice, immobilisation in a collar and gentle manual traction to attempt to relax the cervical musculature and relieve pain.

Progression on to further therapy techniques is planned once the pain is under control such as neck massage, gentle muscle neck stretches for muscle tightness and mobilisation of the joints. The patient is asked to perform active movements within reasonable pain limits. On restoration of more normal neck ranges of motion and head position the next stage of physiotherapy is to increase the neck muscle strength and endurance so that the person can return to normal.

Jonathan Blood Smyth, editor of the Physiotherapy Site, writes articles about Physiotherapy, back pain, orthopaedic conditions, neck pain, injury management and physiotherapists in Cambridge. Jonathan is a superintendant physiotherapist at an NHS hospital in the South-West of the UK.

The ability to position the fingers and thumb in precise postures is vital for the highly coordinated use of the hand and the wrist has a significant role to play in this function. The shoulder blade and the shoulder perform the gross positioning of the arm, the elbow places the hand at varying distances from the body, the forearm dictates the angle of the wrist and the wrist performs the final positioning of the hand. The closer to the hand the body parts come the more precise and fine the movement becomes.

The wrist bones are a grouping of eight small bones called the carpal bones and which are arranged in two rows between the metacarpals and the ulna and radius of the forearm. From the end row of carpal bones the metacarpals run down the hand to the junction with the phalanges at the knuckles, making a mobile central hand area. Running virtually parallel to each other and being long and narrow the metacarpals can alter their positioning, either becoming flattened to support something large or rotated round to cup the palm for increased grasping ability.

The neat, close group of carpal bones allows the wrist to perform a conical range of movement facing forwards, with a full 360 degree rotation possible. The bones can move as a group or to some degree individually to permit fine control of the thumb, fingers and hand. The rows are somewhat irregular but on average there are two bones in line with each metacarpal between it and the forearm. This pattern creates a series of joints in line with each other and permits a great variety of individual movements to translate into precise and varied positioning.

The thumb is the most manoeuvrable and astonishing part of the human hand. We possess an “opposable thumb” which is absent from apes and allows us to achieve the high levels of precision movements we require. On the outside of the hand the thumb’s metacarpal is not flat in the same plane as the others in the palm but is turned inwards, giving it the function of crossing the palm to allow the thumb to meet the ends of the fingers in gripping. Much of the specialised thumb movement comes from the junction of its carpal and metacarpal bones.

The movements of the carpal bones can be in unison in small amounts as they move together to allow a movement to occur. As the hands move small amplitudes of movement occur between the individual carpal bones and the carpal rows. The metacarpals are able to rotate around their long axes which allows the palm to be curled into a cupped position. As the palm moulds round to assist gripping it also allows the fingers to align so that they can effectively grip at the correct angle. Any loss of the accessory movements of the carpals and metacarpals can reduce the ability of the hand to function adequately.

The heavy use of the hands in manual work such as lifting and moving large objects, manipulating heavy machines and pulling ropes can damage the function of the wrist. High mechanical forces are generated when the hand grips something hard, squeezing the wrist bones between the metacarpal bones and the radius and ulna of the forearm. This can allow a reduction of the accessory movements between the individual wrist bones. The lunate bone can be moved from its position with painful consequences if the wrist is extended with force.

The commonest reason for the wrist to be extended forcibly is a FOOSH or a fall on the outstretched hand, which can result in a Colles fracture which involves the last inch of the radius and ulna near the wrist. The fracture, commonest in older females, is the most obvious part of the overall injury which results also in wrist sprain and soft tissue injury. Five to six weeks will be enough to heal the fracture but there may be weakness, pain and difficulty with use in the hand for a longer period, partly related to a upset in the inter carpal movements.

Jonathan Blood Smyth, editor of the Physiotherapy Site, writes articles about Physiotherapists, physiotherapy, Physiotherapists in Coventry, back pain, orthopaedic conditions, neck pain and injury management. Jonathan is a superintendant physiotherapist at an NHS hospital in the South-West of the UK.

The inward rotation of the femur which occurs as the knee comes close to its locking position of extension is not large but very important to knee function, making the knee much more complex than a simple hinge joint. The small internal movements of the knee are limited in the knee joint and the joint cannot afford any losses of these motions without losing some of its function. These small movements are called accessory movements and are small gliding and sliding movements which occur within the joint during functional activity but which cannot be performed in isolation.

The knee has to satisfy the competing demands of stability and mobility, it has to be a powerful and reliable prop for the body weight and it has to move into varied positions with great speed. In the case of walking the knee must at one moment bear the entire body weight and then the next unlock so that the leg can be lifted to step forward. As the cycle progresses the knees lock and unlock regularly and reliably, enabling rapid walking and the covering of great distances without fear of falling. The slide that occurs during the knee lock and unlock is vital to this function and can give problems early on in knee pathology.

The knee has very strong muscles but can also respond to changes such as an uneven surface by finer controlled reactions. The knee is strong enough to achieve full squatting and then stand our body weight up again without pause. The knee’s accessory movements are small in distance with side to side more limited than front to back, both however contributing to coping with uneven ground. The inside of the knee joint can gap open more than the outside due to the natural angle of the lower leg to the knee.

The first article about the knee covered the idea that the knee moves backwards and forwards and tends to stick in that plane, so if an abnormal stress such as to the side is added this changes the balance in the joint. The kneecap and the main knee compartments can experience wear changes if the knee suffers from bow-leg or knock knee. The knee is divided into two compartments, the medial and the lateral side, both with their own meniscus, ligament, femoral and tibial condyles. The stresses which are transmitted across the compartments vary with changes in the sideways angle of the knee.

If the knee becomes bow-legged to some degree the quadriceps pulling on the patella levers it towards the inside and can cause the patella to be compressed against the inside of the femoral groove, with painful results. The lateral knee compartment then suffers increased forces and is subject to accelerated wear changes on that side. Typically people have a small degree of knock knee, and any exaggeration of this can make kneecap pain more likely on the outside and cause increased wear of the inside compartment.

Patellar problems can also occur if the knee does not typically extend fully, as the knee remains slightly flexed and the quadriceps has to maintain knee stability, pushing the patella strongly against the femoral groove. These increased forces can be a cause of patello-femoral pain which is a very common complaint. If the knee has some abnormal lateral alignment then a small wedge under one side of the heel can realign the foot and shin bone from below and thereby make a very small but important change to the stresses through the knee.

The patella can also give problems in response to abnormal changes in other joints. As we get older our foot arches can become less strong and so less pronounced, sometimes leading towards a degree of flat foot. As the feet rotate inwards on weight bearing the whole foot and shin move inwards to some extent, introducing an amount of knock knee effect at the knee. This can cause the kneecap to glide more outwards along the groove than normal and lead to patello-femoral pain. An effective treatment can be to wear orthotics in the shoes, which can combine restoration of the foot arches with the necessary level of medial wedging of the heel.

Jonathan Blood Smyth, editor of the Physiotherapy Site, writes articles about Physiotherapy, back pain, orthopaedic conditions, neck pain, injury management and physiotherapists in Leicester. Jonathan is a superintendant physiotherapist at an NHS hospital in the South-West of the UK.