Introduction High tibial osteotomy (HTO) predominately done for varus deformities less common for valgus deformities Angular deformity in the knee leads to abnormal distribution of weight bearing stresses can accelerate wear in medial or lateral compartments of the knee and lead to degeneration HTO is commonly combined with cartilage restoration procedures to provide better mechanical environment for biologic repair Prognosis varus-producing high tibial osteotomy success rate is 87% in 10 years valgus-producing high tibial osteotomy success rate is 50-85% in 10 years Indications Indications young, active patient (<50 years) in whom an arthroplasty would fail due to excessive wear healthy patient with good vascular status non-obese patients pain and disability interfering with daily life only one knee compartment is affected compliant patient that will be able to follow postop protocol General contraindications inflammatory arthritis obese patient BMI>35 flexion contracture >15 degrees knee flexion <90 degrees procedure will need >20 degrees of correction patellofemoral arthritis ligament instability varus thrust during gait Anatomy Mechanical axis of lower extremity can be assessed by drawing straight line from center of femoral head to the center of the ankle joint line axis should pass just medial to the medial tibial spine Presentation Symptoms pain on medial or lateral side of knee Exam knee malalignment Imaging Radiographs show knee malalignment using mechanical axis line Varus-producing tibial osteotomy Surgical goals unload the involved joint compartment by correcting tibial malalignment maintain the joint line perpendicular to mechanical axis of the leg Indications can be done for valgus knee with lateral compartment degeneration deformity should be <12 degrees or else the joint line will become oblique specific contraindications medial compartment arthritis loss of medial meniscus distal femoral osteotomy better if lateral femoral condyle hypoplasia present Valgus-producing tibial osteotomy Goals unload the involved joint compartment by correcting tibial malalignment A medial unloader brace can be used for therapeutic and diagnostic purposes. If a patient benefits from the brace, they are likely to benefit from surgery. maintain the joint line perpendicular to mechanical axis of the leg Indications can be done for varus knee with medial compartment degeneration (more common) best results achieved by overcorrection of the anatomical axis to 8-10 degrees of valgus specific contraindications narrow lateral compartment cartilage space with stress radiographs loss of lateral meniscus lateral tibial subluxation >1cm medial compartment bone loss >2-3mm varus deformity >10 degrees Technique lateral closing wedge technique most common technique wedge of bone removed with tibia via an anterolateral approach ORIF of wedge has advantages more inherent stability allows for faster rehab and weight bearing no required bone grafting medial opening wedge technique transverse bone cut made in proximal tibia, and wedged open on medial side ORIF of wedge has advantages of maintaining posterior slope avoids proximal tibiofibular joint avoids peroneal nerve in anterior compartment focal dome osteotomy (concavity proximal) the center of the dome is located at the center of rotation of angulation (CORA) has advantages corrects limb alignment with the least translation of bone ends least translation of anatomical axis minimal shortening Complications Recurrence of deformity 60% failure rate after 3 years when failure to overcorrect patients are overweight Loss of posterior slope Patella baja refers to a shortened patellar tendon which decreases the distance of the patellar tendon from the inferior joint line can be caused by raising tibiofemoral joint line in opening wedge osteotomies can be caused by retropatellar scarring and tendon contracture can cause bony impingement of patella on tibia Compartment syndrome Peroneal nerve palsy more common in lateral opening wedge osteotomy and lateral closing wedge osteotomy minimal risk in medial opening wedge osteotomy Malunion or nonunion
Technique Guide Technique guide are not considered high yield topics for orthopaedic standardized exams including the ABOS, EBOT and RC. TKA Revision Orthobullets Team Recon - TKA Instability Technique Guide Technique guide are not considered high yield topics for orthopaedic standardized exams including the ABOS, EBOT and RC. TKA - Parapatellar Approach Derek Bernstein Stephen Incavo Recon - TKA Metal Hypersensitivity Technique Guide Technique guide are not considered high yield topics for orthopaedic standardized exams including the ABOS, EBOT and RC. High Tibial Osteotomy Orthobullets Team Recon - Knee Osteoarthritis
QUESTIONS 1 of 8 1 2 3 4 5 6 7 8 Previous Next Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK You have 100% on this question. Just skip this one for now. Take This Question Anyway (OBQ11.105) Patella baja is most likely to occur after which of the following procedures? Review Topic | Tested Concept QID: 3528 Type & Select Correct Answer 1 Arthroscopic ACL reconstruction with cadaver allograft 1% (59/5446) 2 PCL reconstruction using tibial inlay technique 1% (43/5446) 3 High tibial osteotomy 85% (4613/5446) 4 MPFL reconstruction with semitendinosus autograft 2% (98/5446) 5 Total knee arthroplasty (TKA) 11% (622/5446) L 1 Question Complexity B Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 3 Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK You have 100% on this question. Just skip this one for now. Take This Question Anyway This is an AAOS Self Assessment Exam (SAE) question. Orthobullets was not involved in the editorial process and does not have the ability to alter the question. If you prefer to hide SAE questions, simply turn them off in your Learning Goals. (SAE07HK.76) A 37-year-old man who works in a factory has isolated, lateral unicompartmental pain about his knee with activities. Nonsurgical management has failed to provide relief. The radiograph shown in Figure 45 reveals a tibiofemoral angle of approximately 15 degrees which is clinically correctable to neutral. What is the best surgical option in this patient? Review Topic | Tested Concept QID: 6036 FIGURES: A Type & Select Correct Answer 1 Unicompartmental arthroplasty 15% (20/134) 2 Total knee arthroplasty 16% (21/134) 3 Lateral closing wedge proximal tibial osteotomy 17% (23/134) 4 Medial opening wedge proximal tibial osteotomy 14% (19/134) 5 Medial closing wedge supracondylar femoral osteotomy 36% (48/134) N/A Question Complexity E Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 5 You have 100% on this question. Just skip this one for now. Take This Question Anyway This is an AAOS Self Assessment Exam (SAE) question. Orthobullets was not involved in the editorial process and does not have the ability to alter the question. If you prefer to hide SAE questions, simply turn them off in your Learning Goals. (SAE07HK.37) A 38-year-old man who is an avid tennis player has had persistent pain over the medial aspect of his knee for the past 6 years. He notes that the pain occurs on a daily basis with any significant activity. Nonsteroidal anti-inflammatory drugs have failed to provide relief. Radiographs are shown in Figures 22a and 22b. What is the best course of action? Review Topic | Tested Concept QID: 5997 FIGURES: A B Type & Select Correct Answer 1 Total knee arthroplasty 0% (2/410) 2 Unicompartmental arthroplasty 18% (72/410) 3 Insertion of a unispacer 0% (0/410) 4 Tibial osteotomy 78% (319/410) 5 Knee arthroscopy 3% (14/410) L 2 Question Complexity E Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 4
All Videos (19) Podcasts (0) Login to View Community Videos Login to View Community Videos 2018 Orthopaedic Summit Evolving Techniques The Distal Femoral Osteotomy In A 31-Year-Old Female Runner - Seth Lawrence Sherman, MD (OSET 2018) Seth Sherman Recon - High Tibial Osteotomy 7/25/2019 228 views Login to View Community Videos Login to View Community Videos 2018 Orthopaedic Summit Evolving Techniques Evolving Technique Update: 5 Tips In 5 Minutes,My Technique For An HTO - Thomas M. DeBerardino, MD, FAOA (OSET 2018) Thomas DeBerardino Recon - High Tibial Osteotomy 7/25/2019 275 views Login to View Community Videos Login to View Community Videos 2018 Orthopaedic Summit Evolving Techniques How To Avoid Complications With HTO: Not So Hard - Anil Ranawat, MD (OSET 2018) Recon - High Tibial Osteotomy 7/25/2019 262 views See More See Less
Chicago Sports Medicine Symposium (2016) Varus Knee with Cartilage and Meniscal Damage in 32 Year Old (C2647) Andrew Dold Recon - High Tibial Osteotomy 8/4/2016 7197 73 5