tibia operation, desperately need help

Hello everybody,

i desperately need help with this operation:

Operation Name: RT. PROXIMAL TIBIAL TUMOUR RESECTION AND RECONSTRUCTION

Procedures: UNDER GA SUPINE POSITION SCRABBING AND DRABBING OF THE RT. LOWER
LIMB.
SKIN MARKING.
SKIN INCISION ANTERIOR TIBIAL WITH PROXIMAMAL MEDIAL PARAPATELLAR APPROACH.
MAKING OF MEDIAL FLAP WITH DISSECTIONN DOWN TO THE POSTERIOR ASPECT AND
EXPLORATION OF POPLITEAL VESSELS AND TIBIAL NERVE.
IDENTIFICATION OF POPLITEAL ARTERY BUFURCATION EITH LIGATION OF ANTERIOR
TIBIAL ARTERY.
THEN COMPLETION OF THE DISECTION DOWN POSTERIOR AND DISTAL.
. ANTEROLATERAL DISSECTION WITH REMOVAL OF FIBULAR HEAD.
BONE CUT ABOUT 12.5 CM PROM KNEE JOINT.
REMOVAL OF SPICEMEN ENBLOCK.
DISTAL MEDUULAY CNAL MARGIN TAKENAS FROZEN SECTION WAS NEGATIVE.
THE REAMIND AND PREPARATION OF THE TIBIA UP TJ 15.5 MM.
DISTAL FEMUR CUT AND REAMING UP TO 18 MM.
WAHING IRRIGATION . TRIAL DONE . THEN PLACEMENT OF DEFINTIIVE PROSTHEIS WITH
BONE CEMENT.
CHEKING BLOOD VESLES PASTERIOT TIBIAL ARTERY WHICH AUIDABLE AT 30 DEGREE
FLEXION.
THEN RECONSTRUCTION BY USING MEDIAL GASTROCNEMIUS MUSCLE AND SUTURRING OF
THE PATELLAR TENDON.
DRAIN .
CLOSURE IN LAYER AND SKIN.
DRESSING BACK SLAB AT 30 DEGREE FLEXION.
POSTEROR TIBIAL ARTERY AUIDABLE.
AND NO RT FOOT DORSI FLEXION OR PLANTAR FLEXION..

the doctor said these codes will fit:
27645
27665
27690

but we still need a code for:
Reconstruction of right proximal tibia by endoprosthesis..

Any suggestion?

tibia operation, desperately need help