Use of autologous bone marrow stem cell implantation for osteonecrosis of the knee in sickle cell disease: a preliminary report

Table 2 Patient Demographic Characteristics at Baseline

Parameter	Value
N^o of patients studies	33
Age (years), mean §	28.4 (18–42)
Men, n (%)	39.4
Hematocrit (%) ± SD	21.9
Total hemoglobin (g/l)	6.9
Genotype (N^o)
HbSS	16
HbSC	17
N^o of patients with bilateral involvement	36.4% (12/33)
N^o of knees enrolled	45
Staging
Stage 1	48.5% (21/45)
Stage 2	51.5% (24/45)
Localization
Medial femoral condyle	42.3% (19/45)
Lateral femoral condyle	24.4% (11/45)
Medial tibial plateau	20.0% (9/45)
Lateral tibial plateau	13.3% (6/45)

Abbreviation: N^o, number; SD, standard deviation
§ Range is shown in parenthesis
Clinical and laboratory results obtained when patients were at steady state, without evidence of acute infection or pain crisis

ISSN: 1471-2474