Open Fractures of Humeral Shaft

An open fracture is one that has an associated wound over it and that wound communicates with fracture hematoma. Open fractures are always a special situation because they demand prompt and aggressive approach.

Presentation

The presentation is with pain, swelling and an associated bleeding wound. In severe cases the fracture fragments may be jutting out. Because, often the skin has been breached, there are higher chances of neurovascular injuries. Therefore all the nerves and vessels should be carefully examined.

The patient should be thoroughly examined to find and rule out other possible injuries. This is especially true for high velocity traumas.

The wound should be inspected for severity and any bleeding vessel should be ligated. The fracture should be splinted in a coaptation splint or U splint after wound has been cleaned and dressed.

The extent of injury determines the number of investigations. A plain anteroposterior and lateral radiograph would serve the purpose in most of the cases.

If there is associated injury in any part of the body, it should be xrayed.

If there is an arterial injury, a doppler ultrasound would be required to confirm and know the level of injury.

The fracture Treatment

The surgeon must perform a thorough debridement of the bone and soft tissues on an emergent basis to decrease the risk of deep infection. Prophylactic antibiotics should be administered.

If the wound is small and clean the fracture can be managed with closed fracture treatment after debridement.

However moderate clean wounds would require fixation external or internal, depending on the condition of wound after debridement.

External fixation usually is reserved for fractures with such severe injury to the soft tissues and profound contamination that complete debridement is not achieved at the initial procedure. Wound care after the initial debridement of any open fracture consists of additional debridements or healing by secondary intention as dictated by the severity of soft tissue damage.

Gunshot fractures

Gunshot fractures constitute a unique type of open fracture. The injuries vary considerably depending on the type of firearm involved. These fractures, especially if caused by high-velocity bullets, result in more frequent and more severe nerve and vessel injury and a more comminuted fracture.

For wounds from low-velocity missiles,  minimal debridement of the wound, to include excision of skin edges and removal of superficial fragments of clothing and debris, followed by superficial irrigation, is sufficient to prevent most infections and can be considered for closed fracture treatment or internal fixation.

Shotgun injuries and high-velocity missile wounds, usually result in severe damage to the soft tissue and formal debridement in the operating room followed by fixation, often with an external fixator, is necessary.

Fracture of Shaft of Humerus- When To Operate?

Non operative treatment of fracture of humerus produces very good results but not a feasible choice in many situations.

In following situations, an operative intervention needs to be considered.

Inability to maintain fracture alignment with functional bracing

In many cases, it is not possible to maintain alignment with closed methods. Poor soft tissue strength,  comminuted fractures, obesity percluding molding of the cast are some situations. Sometimes the patient refuse to accept closed treatment because of the discomfort attached.

If there is an angulation of 15 degrees in any plane, surgical treatment may be considered. [Read more...]

Non Operative Treatment of Fractures of Humerus

Modern closed treatment methods rely substantially on the effect of gravity to achieve proper position of the fracture.

Hanging Cast

With the elbow bent at 90 degrees, a long arm cast is placed and upper part of the cast is molded carefully to align the humeral fracture. The cast must be lightweight or distraction may occur at the fracture site that may interfere with union of the fracture site.   A  series of loops are incorporated into the cast at the junction of the middle and distal thirds of the forearm.

After application, the cast is then suspended by a strap around the neck connected to the loops on the cast.

By changing the position at which the strap connects to the loops, the alignment of the fracture can be adjusted.

  • Proximal and distal adjustments change anterior and posterior angulation,
  • Volar and dorsal adjustments change varus and valgus alignment.

The arm must remain dependent at all times all the times. The patient should be sleeping in Fowler’s semireclining position, and while sitting, the patient should avoid support under the elbow. Distraction and poor healing is a complication with this technique.

One of the better methods is functional bracing.

U-splinting

This method can be used for temporary or definitive treatment. It involves placement of a well molded plaster slab from the axilla, around the elbow, and over the deltoid with the elbow flexed to 90 degrees. A collar-and-cuff suspension sling supports the forearm. This method has less tendency for distraction as compared to hanging cast.

For definitive treatment it is effective,  functional bracing method perform better.

Humeral fracture orthosis

Humeral fracture orthosis is the preferred method of non operative treatment of fracture humer. A rigid, light-weight plastic brace composed of an anterior and posterior shell joined by Velcro straps. A flare extending over the deltoid with an additional strap meant to extend around the thorax may prevent the brace from slipping distally.

A coaptation splint may be applied initially, with placement of the orthosis delayed for 7 to 14 days.

When fitted properly, the splint extends from the axilla medially to a position as far distal as possible without limiting motion of the elbow joint.

Straps help to adjust he brace and prevent from slipping.

In earlsy period of treatment, a collar-and-cuff type of suspension strap connected to the wrist.

The patient should be sleeping in Fowler’s semireclining position, and while sitting, the patient should avoid support under the elbow

As healing progresses, the patient is encouraged  to do active range-of-motion exercises of the elbow joint as well as pendulum and circumduction exercises of the shoulder  as pain allows.

The position of the fracture fragments must be verified  at 1 week and again at 2 weeks after fracture. Radiographs should be checked every 3 to 4 weeks during healing until the fracture is clinically and radiographically united. Bracing should be continued for at least 8 weeks to prevent refracture.

Oral Bisphosphonates May Cause Esophageal Cancer

N Engl J Med. 2009;1360:89-90

There have been reports of esophageal cancer in patients who had been taking oral bisphosphonate drugs for osteoporosis. This has been reported by an official from the Food and Drug Administration (FDA) in the January 1 issue of the New England Journal of Medicine.

Twenty-three cases including 8 fatal reported in the United States, between October 1995 May 2008, all of them in association with alendronate. Fosamax, a popular band from Merck contains alendronate. [Read more...]

Bad Posture As A Cause Of Chronic Back Pain And Measures To Correct

Beginning today we would also cover preventive aspects of musculoskeletal problems. This is first article in the categoty

Habitual poor posture or bad posture lead chronic aches and pains. If this goes uncorrected for a length of time, it perpetuates into a chronic pain syndrome.

Many backpain, neckpain, headache result from a bad or poor posture. Sometimes what may happen is that we adopt a posture to keep the pain away but continued bad posture results in other kinds of pains.h

Over a course of time uncorrected and habitual poor posture causes structural changes in the joints and wear and tear. [Read more...]