Hemiepiphysiodesis Tunisia
What is Hemiepiphysiodesis?
Hemiepiphysiodesis is a pediatric orthopedic surgical procedure that allows for the gradual correction of angular deformities of the lower limbs in children and adolescents who are still growing. The principle consists of selectively slowing growth on one side of the growth plate (epiphysis) of the distal femur or proximal tibia. Thus, the opposite side continues to grow normally, which naturally straightens the limb axis over time. This technique is particularly indicated for genu valgum (knock-knees) and genu varum (bowlegs) when they are pathological or excessive.
What causes angular knee deformities?
Angular deformities in genu valgum or genu varum can have several origins: physiological (a slight deviation is normal at certain ages: genu varum until 2 years, then genu valgum until 7 years), genetic and familial (hereditary predisposition), metabolic diseases (vitamin D deficiency rickets, Blount's disease or tibia vara), traumatic sequelae (knee fracture or growth plate injury), general bone diseases (skeletal dysplasia, osteochondrodysplasia), and childhood obesity (can accentuate pathological genu valgum).
What are the symptoms of an angular deformity?
Warning signs of excessive angular knee deformity are: abnormal aesthetic appearance (knees touching while ankles are apart - genu valgum, or bowed legs - genu varum), knee, hip or ankle pain during exertion, abnormal muscle fatigue and limping, asymmetric shoe wear, functional discomfort during running or sports, and in severe forms, inability to bring ankles or knees together.
How is angular limb deformity diagnosed?
Diagnosis is based on clinical examination (measurement of joint angles, intercondylar or intermalleolar distance, search for associated ligament laxity), X-rays (weight-bearing lower limb views - standing - with measurement of the femorotibial angle and mechanical axis, as well as teleoroentgenogram to assess overall axis), bone age (left hand X-ray to assess remaining growth potential), and biological tests (if rickets or metabolic disorder is suspected: calcemia, phosphoremia, vitamin D).
What are the non-surgical treatments?
Before considering hemiepiphysiodesis, depending on the case, one can propose: regular clinical and radiological monitoring if the deformity is moderate and the child is young, treatment of the cause (vitamin D and calcium supplementation in case of rickets), or orthopedic insoles or night splints (of limited effectiveness). These measures are sometimes insufficient, hence the recourse to surgery.
Is hemiepiphysiodesis an effective option?
Yes, hemiepiphysiodesis is the reference technique for correcting angular deformities in growing children. It is particularly indicated for children over 8-10 years of age presenting a deformity considered pathological (functionally or aesthetically bothersome) and with sufficient growth potential to allow correction. The technique using tension-band plates (8-plate) is reversible, precise, and minimally invasive.
How is hemiepiphysiodesis surgery performed in Tunisia?
The procedure takes place under general or locoregional anesthesia. The surgeon makes one or two mini-incisions (2 cm) at the knee, on the side where growth needs to be slowed. He places one or two small metal plates (8-plates) or staples crossing the growth plate, fixed with screws. The operation lasts 30 to 45 minutes. The patient can generally return home the next day. No plaster immobilization is necessary.
What are the advantages of 8-plate hemiepiphysiodesis?
8-plates (or growth tension bands) have several advantages: minimally invasive (very small scars), precision (correction is progressive and radiologically controllable), reversibility (if correction is too fast or insufficient, plates can be removed to restart growth), fast recovery (immediate weight-bearing allowed with crutches for a few weeks), excellent functional and aesthetic result.
What is the post-operative recovery like?
Recovery is simple: hospitalization of 1 to 2 days, moderate pain (simple analgesics), walking with two crutches for 2 to 4 weeks then gradual resumption of weight-bearing, return to sports (excluding impact sports) around 2 to 3 months, X-ray control every 4 to 6 months to monitor correction. Once normal alignment is achieved, plates can be removed during a short procedure (1 night).
How long does it take to achieve correction?
The speed of correction depends on the child's age and remaining growth potential. On average, a correction of 1 to 2 degrees per month is obtained. For a deformity of 10 to 15 degrees, 8 to 18 months of modulation are needed. The surgeon calculates the ideal date for plate removal to achieve perfect alignment at the end of growth.
Is it a painful procedure?
Postoperative pain is mild to moderate, well controlled by oral analgesics (paracetamol, ibuprofen). Children tolerate it very well. The absence of a cast and the mini-incision reduce discomfort.
What are the possible risks and complications?
Like any surgery, hemiepiphysiodesis can present rare risks: superficial infection (<1%), displacement or breakage of hardware, insufficient or over-correction, iatrogenic damage to the growth plate, leg length discrepancy in case of bilateral procedure.
What is the price of hemiepiphysiodesis in Tunisia?
The cost of hemiepiphysiodesis in Tunisia is very competitive. The average price ranges from 1800 to 4000 euros all-inclusive (surgeon's fees, anesthesiologist, clinic, implants, hospitalization). This rate is about 2 to 3 times lower than prices in Europe. Tunisie Esthetic provides you with a personalized and free quote after reviewing your medical file.
Why choose Tunisia for hemiepiphysiodesis?
Tunisia has orthopedic surgeons specialized in pediatrics, trained in France or Belgium. Private clinics are equipped with modern equipment (image intensifiers, latest generation 8-plates). Waiting times are short (a few weeks), and a reception service for foreign patients facilitates the stay (transfers, accommodation, interpreter). Finally, Tunisia offers a pleasant setting for convalescence.
Conclusion
In conclusion, hemiepiphysiodesis is an elegant, minimally invasive and effective surgical technique to correct knock-knees or bowlegs in children and adolescents. In Tunisia, this procedure is performed at an affordable price without compromising quality of care. If your child has an excessive axial deviation of the knees, consult a specialist quickly. Tunisie Esthetic accompanies you at every step, from teleconsultation to postoperative follow-up.