In the activation phase distraction of the callus induces bony ingrowth which can last up to 15 days depending on the required distraction. Once the required bone length is reached, the distraction device is left to remain in situ as it acts as a rigid skeletal fixation device until the new bone has matured (known as the consolidation period). Speech
Velopharyngeal insufficiency (VPI) can occur as a result of an unrepaired or repaired cleft lip and palate. VPI is the inability of the soft palate to close tightly against the back of the throat during speech, resulting in incomplete velopharyngeal closure. In turn, this results in speech abnormalities. Velopharyngeal closure is necessary during speech because it forms a seal between the nose and mouth, allowing the production of normal speech sounds. VPI can cause hypernasality (excessive nasal resonance), hyponasality (reduced nasal resonance), or a mixed nasal resonance, which is when hypernasality and hyponasality occur simultaneously. In addition, CLP may cause abnormal positioning of individual teeth, which can in turn affect the patients ability to make certain sounds when speaking such as the "f" or "v" sound and can also result in a lisp. The changes in speech may also be a manifestation on CLPs effects on the patients occlusion. Hearing
Children with cleft palate have a very high risk of developing a middle ear infection, specifically otitis media. This is due to the immature development of the different bones and muscles in the ear.
Pelvic girdle pain (abbreviated PGP) can be described as a pregnancy discomfort for some women and a severe disability for others. PGP can cause pain, instability and limitation of mobility and functioning in any of the three pelvic joints. PGP has a long history of recognition, mentioned by Hippocrates and later described in medical literature by Snelling. The affection appears to consist of relaxation of the pelvic articulations, becoming apparent suddenly after parturition or gradually during pregnancy and permitting a degree of mobility of the pelvic bones which effectively hinders locomotion and gives rise to the most peculiar and alarming sensations. Classification
Prior to the 20th century, specialists of pregnancy-related PGP used varying terminologies. It is now referred to as Pregnancy Related Pelvic Girdle Pain that may incorporate the following conditions:

Diastasis of the symphysis pubis (DSP)
Symphysis pubis dysfunction (SPD)
Pelvic Joint Syndrome
Physiological Pelvic Girdle Relaxation
Symptom Giving Pelvic Girdle Relaxation
Posterior Pelvic Pain
Pelvic Arthropathy
Inferior Pubic Shear/ Superior Pubic Shear /Symphyseal Shear
Symphysiolysis
Osteitis pubis (usually postpartum)
Sacroiliitis
One-sided Sacroiliac Syndrome /Double Sided Sacroiliac Syndrome
Hypermobility"The classification between hormonal and mechanical pelvic girdle instability is no longer used. For treatment and/or prognosis it makes no difference whether the complaints started during pregnancy or after childbirth." Mens (2005)

Signs and symptoms
A combination of postural changes, baby, unstable pelvic joints under the influence of pregnancy hormones, and changes in the centre of gravity can all add to the varying degrees of pain or discomfort.