Beom Koo Lee, M.D. Beom Koo Lee, M.D. Dept. of Orthopaedic Surgery Dept. of Orthopaedic Surgery Gil Medical Center, Gachon University Gil Medical Center, Gachon University Operation of Arthritic Operation of Arthritic Knee Knee - HTO vs UKA - - HTO vs UKA -
Operation of Arthritic Knee - HTO vs UKA -. Beom Koo Lee, M.D. Dept. of Orthopaedic Surgery Gil Medical Center, Gachon University. Surgical Options for Mono-compartmental OA. Arthroscopic Debridedment Cartilage Transplantation Osteotomy UKA TKA. - PowerPoint PPT Presentation
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Beom Koo Lee, M.D.Beom Koo Lee, M.D.
Dept. of Orthopaedic Surgery Dept. of Orthopaedic Surgery Gil Medical Center, Gachon UniversityGil Medical Center, Gachon University
Operation of Arthritic KneeOperation of Arthritic Knee- HTO vs UKA -- HTO vs UKA -
Weight bearing, Rehabilitation, General Complication Problem
Complication Cosmetics Technical Problem associated with TKA after Procedure
Trend
The early reported series of unicompartmental knee replacement done by experienced surgeons did not have encouraging results, with 70% survivorship reported at 5 to 7 years, and 65% and 53% survivorships reported at 11 and 12 years, respectively.
Callahan, CORR, 2005
Trend of UKA
• However, more recently the reports of unicompartmental knee replacement have been more encouraging with 94% survivorship at 10 years and 90% survivorship at 18 years.
Callahan, CORR, 2005
Trend of UKA, Recently
The UKA preserve Normal KinematicsPatil, JBJS(Am), 2005
corrected by Dual Osteotomy. Hanssen Insall 3rd edit
Range of Correction
T-F angle : Varus 14°
Mechanical Axis : Varus 20°
moderate to severe Lateral instability, and subluxation is contraindicated in HTO
(Insall 3rd edit) TKA is advisable in Great subluxation than UKA ( Insall 3rd edit) UKA is contraindicated for instability (ICL 2005)
Management in Mild Lateral Laxity in HTO
Slight Overcorrection Reefing of LCL 배대경 Spontaneous shortening 조세현
Lateral Instability
ACL Instability in UKA
• ACL insufficiency ; relative contraindication in UKA ICL 2005
HTO can be done in ACL DeficiencyNoyes, Am J Sports Med, 2000
UKA in Elderly
O’Rourke, CORR, 2005
UKA 는 HTO 에비해 비교적 Deformity 정도가 적어야하고 , Ligament 가 Stable 해야한다 .
UKA 에서 80 세 이상의 노인이나 , 40 대의 여성에서 유리하다 .
HTO 는 활동이 많은 젊은 나이에 유리하다 .
Summary of Indications
Survival
Survival of UKA
O’Rourke, CORR, 2005
Survival of UKA
Stukenborg, The Knee, 2001
Despite an accelerated recovery and decreased hospital stay in our MIS-UKA, the rate of Revision due to aseptic loosening and the overall Reoperation rate compare to unfavorably with those performed with an open technique.
Koshino-Joint space ;pre-op 1.1mm post-op 2.3mm-Pattern No reg;13/146 pink and yellow fibrillation 2/143 Partial coverage 50/143 Full coverrage 16/14313,86,47/146
UKA 가 HTO 에비해 Rehabilitation 이 쉽 고 ,, Peri- operative Complication 면에서 월등하다 .
Summary of early perioperative course
Cosmesis
HTO : Overcorrection
UKA : Undercorrection
Alignment
Subcondylar Osteotomy with Blade Plate
Tibia Vara with Mild OA
Preop. POD#5Y
Tibio-Femoral Angle : 13°
Defective Cosmesis Unbalance compared to Contralateral Side
UKA : One Stage
HTO : Two Stage
Staged Operation in Bilateral Case
UKA : Immediate
HTO : Delay 2-3 M
Weight Bearing
UKA 가 HTO 에비해 Weight Bearing, Cosmesis, 면에서 월등하다 .
Summary of Short Term Results
Long tern complication
Long term Cx after HTO
• Loss of correction
• Arthritis opposite compartment
• Decreased function over time.• pseudoarthrosis
Collapse after UKA
Engh, J Arthroplasty, 2006
Wear after UKA
Vince, J Arthroplasty, 2004
Dislocation after UKA
Fracture after UKA
Vince, J Arthroplasty, 2004
Technical Problems & Results of Revision
Difficult Exposure Bone Defect Difficult Ligament Balance Prolonged Operative Time Increased Blood Loss Offset Stem Sometimes But, No Problem after Open Wedge HTO (Kitson) Injury 2001;32
difficult exposure , mild decreased flexion but No difference (Haddad 2000 J arthroplasty)
(Windsor)
Results of TKA after HTOcompared with primary TKA
HTO 는 Approach 시 조심해야 하며 , UKA 는 Bone Defect 에 대비해야 한다 .
결과는 HTO 가 UKA 후 Revision 보다 좋다 .
Summary of Problems at Revision
We may rightfully expect Higher Failure Rates, perhaps Greater Damage in the Younger, More Active Patient. New, expanded Indications for UKA may lead to More Complications and perhaps More Severe Failures.
Vince, J Arthroplasty, 2004
Can We expand Indication
of UKA in Young Patients?
Summary
Faster Recovery Immediate Weight Bearing High Initial Success Rate Fewer Early Complications Simultaneous Bilateral Procedure Better Cosmesis Less Infection Less Blood Loss Less Function and Activity 80 세 이후의 노인에서 아주 좋은 결과를 얻을 수 있다 .
Callahan, CORR, 2005Gillquist, CORR, 1991
Insall
UKA
More Active Life Style Biologic Better Result at Revision than UKA 초기 문제가 많다 .
Although the unicompartmental prosthesis used in this series has not shown promising results and does not match the results of some other prosthesis, and the introduction of guide instruments for precise surgical techniques has currently improved the survival of UKAs to over 90% at 10 years. Therefore, we think that in patients over 60 years of age, unicompartmental osteoarthritis UKA offers Better Long-term Results than HTO.
Stukenborg, The Knee, 2001
Future of UKA
It is proposed that Future Biologic Resurfacing, together with Computer- and even Robotic-Methods, as well as other advances in Biology and Technology, will combine to resurrect the performance of knee osteotomies
Krackow, J Arthroplasty, 2004
Future of HTO
HTO 와 UKA 는 잘 선택될 때 좋은 결과를 얻을 수 있다 .
Indication, Cosmesis, Function, Biologic 면 에 서 완전히 다른 수술이다 .
HTO 는 초기에 문제가 많고 , UKA 는 후기에 문제가 있다 .
HTO 는 젊고 활동이 많은 환자에 유용하다 . UKA 는 활동이 적은 여성이나 , 80 대 이상에서 좋은