when patient 72198 first received a ot cerv fusion post/post procedure during this year?
select procedures_icd.charttime from procedures_icd where procedures_icd.icd9_code = ( select d_icd_procedures.icd9_code from d_icd_procedures where d_icd_procedures.short_title = 'ot cerv fusion post/post' ) and procedures_icd.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 72198 ) and datetime(procedures_icd.charttime,'start of year') = datetime(current_time,'start of year','-0 year') order by procedures_icd.charttime asc limit 1