LIVRE JDG 2010

For the femoral implant rotation, only Assor

al.

[3] analyzed the malpositioning on radio-

graphs and for the medial UKA. But he studied

the rotation in the frontal plane.

The femoral implant positioning is still a

demanding step of the UKA especially in the

lateral side because of the physiological femo-

ral valgus. Our work attempts to find a range

of values that we might use afterwards in the

navigation system as the “normal” values. It is

obvious we assumed most of the implants

were well positioned regarding to our previous

results [21] and the surgeon experience.

Our study presents the first 3D

in vivo

analysis

of UKA positioning for both compartments,

which remains a difficult surgical procedure.

With those preliminary results, we have tried

to define some threshold value for a proper

positioning in rotation of the UKA.

THREE-DIMENSIONAL ANALYSIS OF UNICOMPARTIMENTAL KNEE IMPLANT POSITIONING

177

REFERENCES

[1] AKAGI M, OH M, NONAKA T, TSUJIMOTO H,

ASANO T, HAMANISHI C (2004) An anteroposterior axis

of the tibia for total knee arthroplasty.

Clin Orthop 420:

213-9.

[2] ARGENSON JN, KOMISTEK RD, AUBANIAC JM,

DENNIS DA, NORTHCUT EJ, ANDERSON DT,

AGOSTINI S (2002) In vivo determination of knee kine-

matics for subjects implanted with a unicompartmental

arthroplasty.

J Arthroplasty 17: 1049-54.

[3] ASSOR M, AUBANIAC JM (2006) [Influence of rota-

tory malposition of femoral implant in failure of unicom-

partimental medial knee prosthesis].

Rev Chir Orthop

Reparatrice Appar Mot 92: 473-84.

[4] CAMPBELL DG, JOHNSON LJ, WEST SC (2006)

Multiparameter quantitative computer-assisted tomography

assessment of unicompartmental knee arthroplasties.

ANZ J

Surg 76 : 782-7.

[5] CARTIER P, SANOUILLER JL, GRELSAMER RP

(1996) Unicompartmental knee arthroplasty surgery. 10-

year minimum follow-up period.

J Arthroplasty 11: 782-8.

[6] DEJOUR H, BONNIN M (1994) Tibial translation after

anterior cruciate ligament rupture. Two radiological tests

compared.

J Bone Joint Surg 76B: 745-9.

[7] DENNIS D, KOMISTEK R, SCUDERI G,

ARGENSON JN, INSALL J, MAHFOUZ M, AUBANIAC

JM, HAAS B (2001) In vivo three-dimensional determina-

tion of kinematics for subjects with a normal knee or a uni-

compartmental or total knee replacement.

J Bone Joint Surg

83A (Supp 2): 104-15.

[8] FREEMANMA, PINSKEROVAV (2005) The movement

of the normal tibio-femoral joint.

J Biomech 38: 197-208.

[9] FUJISAWA Y, MASUHARA K, SHIOMI S (1997) The

effect of high tibial osteotomy on osteoarthritis of the knee.

Orthop Clin North America 10: 585-608.

[10] HERNIGOU P, DESCHAMPS G (2004) Posterior

slope of the tibial implant and the outcome of unicompart-

mental knee arthroplasty.

J Bone Joint Surg 86A : 506-11.

[11] IESAKAK, TSUMURAH, SONODAH, SAWATARI T,

TAKASITAM, TORISU T (2002) The effects of tibial com-

ponent inclination on bone stress after unicompartmental

knee arthroplasty.

J Biomech 35: 969-74.

[12] KANEKASU K, BANKS SA, HONJO S, NAKATAO,

KATO H (2004) Fluoroscopic analysis of knee arthroplasty

kinematics during deep flexion kneeling.

J Arthroplasty 19:

998-1003.

[13] MATSUDA S, MIURAH, NAGAMINE R, URABE K,

IKENOUE T, OKAZAKI K, IWAMOTO Y (1999)

Posterior tibial slope in the normal and varus knee.

Am J

Knee Surg 12: 165-8.

[14] MURPHY SB, SIMON SR, KIJEWSKI PK,

WILKINSON RH, GRISCOM NT (1987) Femoral antever-

sion.

J Bone Joint Surg 69A: 1169-76.

[15] PHILLIPS R, PETER V, FAURE GE, LI Q,

SHERMAN KP, VIANT WJ, BIELBY M, MOHSEN AM

(2002) A virtual fluoroscopy system and its use for image

guidance in unicompartmental knee surgery.

Stud Health

Technol Inform 85: 341-7.

[16] POILVACHE PL, INSALL JN, SCUDERI GR, FONT-

RODRIGUEZ DE (1996) Rotational landmarks and sizing

of the distal femur in total knee arthroplasty.

Clin Orthop

331: 35-46.

[17] PRICE AJ, REES JL, BEARD DJ, GILL RH, DODD

CA, MURRAY DM (2004) Sagittal plane kinematics of a

mobile-bearing unicompartmental knee arthroplasty at 10

years: a comparative in vivo fluoroscopic analysis.

Arthroplasty 19: 590-7.

[18] RIDGEWAY SR, MCAULEY SR, AMMEEN DJ,

ENGH GA (2002) The effect of alignment of the knee on

the outcome of unicompartmental knee replacement.

J Bone

Joint Surg 84B: 351-5.

[19] ROBINSON BJ, REES JL, PRICE AJ, BEARD DJ,

MURRAY DM (2002) A kinematic study of lateral unicom-

partmental arthroplasty.

Knee 9: 237-40.