EMS & TPD 07
Research type
Research Study
Full title
Transient patella dislocation and mode of early mobilisation.
IRAS ID
234991
Contact name
Bamikole Ogunwale
Contact email
Sponsor organisation
Heart of England NHS Foundation Trust
Duration of Study in the UK
0 years, 5 months, 30 days
Research summary
Malformation of the grove within which the knee cap articulates is known as trochlea dysplasia. It is the most significant risk factor for dislocation of the knee cap, been present in >85% of patients with this. There remains no consensus on the cause.
In the hip, one of the risk factors for malformation of the socket with which the thigh bone articulates (developmental dysplasia of the hip) includes things that happen soon after birth such as how the baby is carried and whether or not this allows the thigh bone to adequately impress on the socket. As such, there is a greater likelihood of developing developmental dysplasia of the hip in babies carried with hips extended compared to hips astride.
It may be therefore that events soon after birth that affect whether or not the knee cap imprints on the trochlea also affect trochlea development.
Infants differ in their method of early mobilisation. They may crawl, which places direct pressure on the knee cap likely causing it to imprint the trochlea. They may however bottom shuffle or go straight to walking. These do not place direct pressure on the knee cap, and may therefore result in an increased risk of trochlea dysplasia, which would result in a greater chance of dislocating the knee cap in later life.
The aim is to find out if there is an increase in the likelihood of knee cap dislocation among people that were bottom shufflers and/or straight to walkers compared to those that crawled.
Walking also changes the dynamics operating between the knee cap and the trochlea. A secondary aim will be to find out if there is any relationship between age of onset of independent walking and knee cap dislocation in later life.REC name
East Midlands - Leicester South Research Ethics Committee
REC reference
17/EM/0445
Date of REC Opinion
2 Jan 2018
REC opinion
Further Information Favourable Opinion