Limb Lengthening Surgery

Overview of Limb Lengthening Surgery in India

In Limb Lengthening operation the patient undergoes surgery, having his arm or leg length longer than it was before. It is applied on patients with inequity on both legs or arms. Where a person possesses a longer leg than the other, there arise certain complexities such as walking disorders, standing longer, feeling of fatigue and pain in the muscles. To avoid these, limb lengthening surgery is carried out to maintain legs of both sides in an equal length. The upper arm, forearm, thigh and lower leg are possible limbs to be operated in the limb lengthening surgery procedure. 

Some of the diseases such as skeletal dysplasia which cause deformity in the normal growth of bones may be treated by limb lengthening surgery. Some of the risks that are related in the limb lengthening surgery are also present. On some patients, it may cause pain even after the surgical process which can be alleviated by taking some drugs. The method of recovery may take different time depending on the state of the patient and their complications.

However, the recuperation may require 5 to 6 months in most of the cases. Limbs lengthening surgery also requires rehabilitation among the patients who undergo such surgery. During the initial stage it is considered to indulge into light activity, and with a gradual grip increase would help in increasing the level of exercise. It enables the patient to develop each of their limbs to the fullest.

Limb lengthening is a surgery that in turn can make the arm or the leg bone longer. Surgeons can carry out limb lengthening operation on the:

• Humerus (arm bone).
• Radius/ulna (arm forearm).
• Thigh bone (Femur).
• Tibia (tibia bone).

Types of Limb Lengthening Surgery:

Ilizarov Method

The Ilizarov Method is a frequently used technique employing an external fixator device. The Ilizarov fixator is used to gradually lengthen the bone by making minor adjustments.

LON (Lengthening Over Nails) Method

In the LON Technique, a metal nail or rod is inserted within the bone where lengthening is conducted by gradually separating the bone segments using an external frame. 

Taylor Spatial Frame (TSF)

The TSF is an external fixator that has ample flexibility to making corrective adjustments of the bone in six planes above and beyond a single lengthening adjustment.  The TSF is a more powerful way to make more accurate, and more precise, transformations of the deformity and lengthening process.

Magnetic Intramedullary Nail

The Magnetic Intramedullary Nail method uses a magnetically controlled intramedullary nail that can be adjusted without the use of fixators or wires with each adjustment of the intramedullary nail lengthening the length of the bone.

Bone transport

This technique is most frequently used in cases of larger bone defects. The method involves progressively moving a portion of the bone from one area to another. The gap is filled as the segment moves away from the original bone.

Callotasis

Callotasis is a method of osteogenesis where a small gap is created in the bone, and as the bone regenerates, it fills in the gap, achieving effective lengthening of the limb.

External fixators with ring systems

There are many external fixator systems available for limb lengthening surgery, including circular ring fixators, which provide more stability and control than traditional external fixators.

Procedure:

The following is a general description of the surgical procedure of limb lengthening: 

Anesthesia: The anesthetic agent is given to the patient before the surgery and serves to decrease the sensation of pain and discomfort.

Incision: A surgical incision is made at the planned lengthening site. The location and size of the incision is based on the procedure and the surgeon's preference.

Bone Osteotomy: In limb lengthening surgery, an osteotomy, or controlled cut through the bone, is made. This means that depending on the technique, the bone might be cut into two segments or it may involve multiple cuts to gain the length or correction desired. 

Implantation: Depending on the type of technique, the surgeon inserts external fixators, such as the Ilizarov device, or an internal device, like intramedullary nails or rods, to keep and support the segments of bone in place.

Lengthening Phase: If an external fixator was used, the lengthening phase begins almost immediately after surgery. Adjustments are made to the fixator on a routine basis, generally every day, to open the bone segments and to promote new bone growth continually. 

Radiological Monitoring: Throughout the entire lengthening phase, X-rays are taken to monitor the healing of the bone and ensure it is properly aligned.

Rehabilitation: Physical therapy and rehabilitation exercises are crucial components of the recovery process. Rehabilitation helps maintain regular ranges of motion in joints, aids in regaining muscle strength, and improves overall limb function.

Removal of External Fixators or Devices: If the lengthening or correction has been achieved, the external fixators or the internal device can be surgically removed.