الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Knee flexion deformity is a major problem in children with spastic cerebral palsy. It is considered one of the most challenging issues facing orthopedic surgeons; as the aim is not only to correct the deformity, but also achieving a stable range of motion and improving the function of the limb. A flexion deformity of the knee and a flexed knee gait are common in children with spastic cerebral palsy and may contribute to pain in the knee and difficulty in walking. A flexion deformity may result from spastic muscle imbalance around the knee, but limited walking ability and time spent sitting with the knees flexed also contribute.(63)
A lot of techniques has been used, but the most common technique now is hamstrings lengthening either alone or as a part of SEMLS.
The technique of hamstring lengthening was first described by Green and McDermott in 1942 and still used by most surgeons. (64)
This study is to evaluate the effectiveness of the hamstrings lengthening operation depending on a static parameter; the popliteal angle and a functional parameter; the FMS.
The study was carried out in Orthopaedic department Minya University Hospital in the period from March 2015 to September 2016.
It included 20 patients
(12 males and 8 females) 13 cases ambulatory and 7 cases non-ambulatory presented with knee flexion deformity in CP. With age range of minimum 4 years and maximum 16 years. Follow up by popliteal angle and functional mobility scale with maximum follow up of 12 months and maximum follow up of 18 months.