In humans, excessive forces caused by sudden bending upwards of the big toe, high heels, or a stumble can contribute to sesamoiditis. Once the sesamoid bone is injured it can be very difficult to cure, because every time you walk you put additional pressure on the sesamoid bone. Treatment in humans consists of anti-inflammatory medication, cortisone injections, strapping to immobilize the big toe, and orthotics with special accommodations to keep pressure off the affected bone.

In horses, sesamoiditis is generally caused by excess stress on the fetlock joint. Conformation that promotes sesamoiditis include long pasterns, or horses with long toes and low heels.

Once diagnosed and located, surgery is the most common treatment for a malunion. The surgery consists for the surgeon re-breaking the bone and realigning it to the anatomically correct position. There are different types and levels of extremity where it is possible that the bone will trimmed to allow full orientation at the fractured spot. Most often, either screws, plates or pins are used secure the new alignment. It is possible that a bone graft could be used to help with healing.

After surgery make sure not to smoke or use any nicotine products as that affects the healing process by limiting blood flow. Also, don’t use any NSAIDS (non steroidal anti-inflammatory drug) as that will also affect the blood flow and the healing to the area of fracture. Do not put weight on the area where the fracture and surgery occurred until informed by your doctor and that could lead to other and future problems. After surgery and the surgical stitches are removed you will be put into a cast to complete the healing process. During follow ups an X-ray or a CT scan may be used to verify that the fracture is healing properly and is now in the anatomical correct position.

Vasodilators improve the blood flow into the vessels of the hoof. Examples include isoxsuprine (currently unavailable in the UK) and pentoxifylline.

Anticoagulants can also improve blood flow. The use of warfarin has been proposed, but the extensive monitoring required makes it unsuitable in most cases.

Anti-inflammatory drugs are used to treat the pain, and can help the lameness resolve sometimes if shoeing and training changes are made. Include Nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, and other joint medications. The use of intramuscular glycosaminoglycans has been shown to decrease pain in horses with navicular disease, but this effect wanes after discontinuation of therapy. Oral glycosaminoglycans may have a similar effect.

Bisphosphonates can be useful in cases where bone remodeling is causing pain.

Gallium nitrate (GaN) has been hypothesized as a possible treatment for navicular disease, but its benefits have not been confirmed by formal clinical studies. One pilot study examined horses given gallium nitrate in their feed rations. While it was absorbed slowly, it did stay in the animals' system, providing a baseline dosage for future studies.

Aside from surgery, there are a few options for handling an accessory navicular bone that has become symptomatic. This includes immobilization, icing, medicating, physical therapy, and orthotic devices. Immobilizing involves placing the foot and ankle in a cast or removable walking boot. This alleviates stressors on the foot and can decrease inflammation. Icing will help reduce swelling and inflammation. Medication involves usage of nonsteroidal anti-inflammatory drugs, or steroids (taken orally or injected) to decrease inflammation. Physical therapy can be prescribed in order to strengthen the muscles and help decrease inflammation. Physical therapy can also help prevent the symptoms from returning. Orthotic devices (arch support devices that fit in a shoe) can help prevent future symptoms. Occasionally, the orthotic device will dig into the edge of the accessory navicular and cause discomfort. For this reason, the orthotic devices made for the patient should be carefully constructed.

By definition, a nonunion will not heal if left alone. Therefore the patient's symptoms will not be improved and the function of the limb will remain impaired. It will be painful to bear weight on it and it may be deformed or unstable. The prognosis of nonunion if treated depends on many factors including the age and general health of the patient, the time since the original injury, the number of previous surgeries, smoking history, the patient's ability to cooperate with the treatment. In the region of 80% of nonunions heal after the first operation. The success rate with subsequent surgeries is less.

Bone stimulation may be with either electromagnetic or ultrasound waves. Ultrasound stimulation has tentative evidence of supporting better healing in long bones that have not healed after three months. Evidence; from a Cochrane review however, does not show that ultrasound decreases rates of nonunion. Another review has, however, suggested it as an alternative to surgery.

The prognosis for a horse with navicular syndrome is guarded. Many times the horse does not return to its former level of competition. Others are retired. Eventually all horses with the syndrome will need to lessen the strenuousness of their work, but with proper management, a horse with navicular syndrome can remain useful for some time.

Distal radius fractures are the most common fractures seen in adults, with incidence in females outnumbering incidence in males by a factor of 2-3. Men who sustain distal radius fractures are usually younger, generally in their fifth decade (vs. seventh decade in females). The elderly are more susceptible because of the osteopenia and osteoporosis commonly seen in this age group. The majority of these fractures are extra-articular (i.e. not involving the joint).

This is also a common injury in children which may involve the growth plate (Salter-Harris fracture).

In young adults, the injury is often severe as a greater force is necessary to produce the injury.

A Cochrane review of low-intensity pulsed ultrasound to speed healing in newly broken bones found insufficient evidence to justify routine use. Other reviews have found tentative evidence of benefit. It may be an alternative to surgery for established nonunions.

Vitamin D supplements combined with additional calcium marginally reduces the risk of hip fractures and other types of fracture in older adults; however, vitamin D supplementation alone did not reduce the risk of fractures.

Over 2.5 million child abuse and neglect cases are reported every year, and thirty-five out of every hundred cases are physical abuse cases. Bone fractures are sometimes part of the physical abuse of children; knowing the symptoms of bone fractures in physical abuse and recognizing the actual risks in physical abuse will help forward the prevention of future abuse and injuries. Astoundingly, these abuse fractures, if not dealt with correctly, have a potential to lead to the death of the child.

Fracture patterns in abuse fractures that are very common with abuse are fractures in the growing part of a long bone (between the shaft and the separated part of the bone), fractures of the humeral shaft (long bone between the shoulder and elbow), ribs, scapula, outer end of the clavicle, and vertebra. Multiple fractures of varying age, bilateral fractures, and complex skull fractures are also linked to abuse. Fractures of varying ages occur in about thirteen percent of all cases.

Treatment options for distal radius fractures include non-operative management, external fixation, and internal fixation. Indications for each depend on a variety of factors such as patient's age, initial fracture displacement, and metaphyseal and articular alignment, with the ultimate goal to maximize strength, and function in the affected upper extremity. Surgeons use these factors combined with radiologic imaging to predict fracture instability, and functional outcome in order to help decide which approach would be most appropriate. Treatment is often directed to restore normal anatomy to avoid the possibility of malunion, which may cause decreased strength in the hand and wrist. The decision to pursue a specific type of management varies greatly by geography, physician specialty (hand surgeons vs. orthopedic surgeons), and advancements in new technology such as the volar locking plating system.

In children, whose bones are still developing, there are risks of either a growth plate injury or a greenstick fracture.

- A greenstick fracture occurs due to mechanical failure on the tension side. That is, since the bone is not so brittle as it would be in an adult, it does not completely fracture, but rather exhibits bowing without complete disruption of the bone's cortex in the surface opposite the applied force.

- Growth plate injuries, as in Salter-Harris fractures, require careful treatment and accurate reduction to make sure that the bone continues to grow normally.

- Plastic deformation of the bone, in which the bone permanently bends, but does not break, also is possible in children. These injuries may require an osteotomy (bone cut) to realign the bone if it is fixed and cannot be realigned by closed methods.

- Certain fractures mainly occur in children, including fracture of the clavicle and supracondylar fracture of the humerus.

A malunion is when a fractured bone doesn’t heal properly. Some ways that it shows is by having the bone being twisted, shorter, or bent. Malunions can occur by having the bones improperly aligned when immobilized, having the cast taken off too early, or never seeking medical treatment after the break.

Malunions are painful and commonly produce swelling around the area, possible immobilization, and of the bone and tissue.

Medication can be prescribed to ease the pain. Antibiotics and tetanus vaccination may be used if the bone breaks through the skin. Often, they are treated without surgery. In severe cases, surgery may be done.

In the horse it occurs at the horse's fetlock. The sesamoid bones lie behind the bones of the fetlock, at the back of the joint, and help to keep the tendons and ligaments that run between them correctly functioning.

Usually periostitis (new bone growth) occurs along with sesamoiditis, and the suspensory ligament may also be affected. Sesamoiditis results in inflammation, pain, and eventually bone growth.

Treatment options vary from very conservative to aggressive. Conservative options include rest, observation, pain control, diet changes, use of a nasopharyngeal tube or oropharyngeal tube, and antibiotic therapy. More aggressive options include surgical repair of the hyoid bone and/or tracheotomy. Surgical treatment was used in 10.9% of cases in a 2012 meta-analysis.

Children in general are at greater risk because of their high activity levels. Children that have risk-prone behaviors are at even greater risk.

Normally, asymptomatic cases are not treated. Non-steroidal anti inflammatory drugs and surgery are two typical options for the rest.

The amount of disability that results from avascular necrosis depends on what part of the bone is affected, how large an area is involved, and how effectively the bone rebuilds itself. The process of bone rebuilding takes place after an injury as well as during normal growth. Normally, bone continuously breaks down and rebuilds—old bone is resorbed and replaced with new bone. The process keeps the skeleton strong and helps it to maintain a balance of minerals. In the course of avascular necrosis, however, the healing process is usually ineffective and the bone tissues break down faster than the body can repair them. If left untreated, the disease progresses, the bone collapses, and the joint surface breaks down, leading to pain and arthritis.

Avascular necrosis usually affects people between 30 and 50 years of age; about 10,000 to 20,000 people develop avascular necrosis of the head of the femur in the US each year. When it occurs in children at the femoral head, it is known as Legg-Calvé-Perthes syndrome.

The arm must be supported by use of a splint or sling to keep the joint stable and decrease the risk of further damage. Usually, a figure-of-eight splint that wraps the shoulders to keep them forced back is used and the arm is placed in a clavicle strap for comfort.

Current practice is generally to provide a sling, and pain relief, and to allow the bone to heal itself, monitoring progress with X-rays every week or few weeks. Surgery is employed in 5–10% of cases. However, a recent study supports primary plate fixation of completely displaced midshaft clavicular fractures in active adult patients.

If the fracture is at the lateral end, the risk of nonunion is greater than if the fracture is of the shaft.

Evidence for bone spurs found in the fossil record is studied by paleopathologists, specialists in ancient disease and injury. Bone spurs have been reported in dinosaur fossils from several species, including "Allosaurus fragilis", "Neovenator salerii", and "Tyrannosaurus rex".

An accessory navicular bone is an accessory bone of the foot that occasionally develops abnormally in front of the ankle towards the inside of the foot. This bone may be present in approximately 2-21% of the general population and is usually asymptomatic. When it is symptomatic, surgery may be necessary.

Surgery can be performed at any age because it does not alter any other bones.

Symptoms of an accessory navicular bone may include plantar fasciitis, bunions and heel spurs.

Hyoid bones fractures represent 0.002% of all fractures; they are rare because the hyoid bone is well-protected by its location in the neck behind the mandible and in front of the cervical spine, as well as its mobility. 91.3% of hyoid bone fractures occur in men.

While bone resorption is commonly associated with many diseases or joint problems, the term "osteolysis" generally refers to a problem common to artificial joint replacements such as total hip replacements, total knee replacements and total shoulder replacements. Osteolysis can also be associated with the radiographic changes seen in those with bisphosphonate-related osteonecrosis of the jaw.

There are several biological mechanisms which may lead to osteolysis. In total hip replacement, the generally accepted explanation for osteolysis involves wear particles (worn off the contact surface of the artificial ball and socket joint). As the body attempts to clean up these wear particles (typically consisting of plastic or metal), it triggers an autoimmune reaction which causes resorption of living bone tissue. Osteolysis has been reported to occur as early as 12 months after implantation and is usually progressive. This may require a revision surgery (replacement of the prosthesis).

Although osteolysis itself is clinically asymptomatic, it can lead to implant loosening or bone breakage, which in turn causes serious medical problems.