The Hip - book

Kohler’s Disease I

– Discussion:     – self limiting avasulcar necrosis of the navicular;     – usually unilateral and affects children, most often boys;     – onset is at age 4 in boys and age 5 in girls;     – navicular is subjected to repetitive compressive forces during wt bearing which may be a … Read more

Kocher approach

– Discussion:     – allows access to midtarsal, subtalar, & ankle joints;     – disadvantages:           – skin may slough about  margins of the incision, especially if dislocation of ankle is a part of the case (as in talectomy);          – further the peroneal tendons must … Read more

Kniest Dysplasia

– See: Metatrophic Dysplasia: – Discussion:     – this disorder is frequently confused with metatrophic dysplasia;     – characterized by disproportionate short trunk dwarfism, kyphoscliosis, and joint stiffness, and contractures of the hands;     – assessment of atlantoaxial instability is essential;     – major orthopaedic deformity is limited joint motion and … Read more

Knee Joint Tumors:

– differential dx of popliteal masses – Tumors of the Distal Femur:      – Nonossifying fibroma – Osteosarcoma      – Giant Cell Tumor of Bone      – Ewing’s sarcoma – Osteochondroma      – Chondroblastoma      – Chondromyxoid fibroma      – Eosinophilic granuloma      – Aneurysmal bone cyst      – Giant cell sarcoma – Fibrous Histiocytoma      – Fibrosarcoma of bone      – Desmoplastic fibroma      – Gaucher’s … Read more

Knee Pain/Derangements in the Child

 – patellofemoral joint disese (young female)  – periarticular tumor:  – Lyme Disease  – Hemophilia  – Discoid Meniscus  – Osteochondritis Desicans  – Noncommunicating popliteal cyst

Knee Joint Menu

(see also: Physical Exam; Radiographs) ACL Anatomy of the Knee Anteromedial Rotatory Instability Anterolateral Rotatory Instability Arcuate Ligament Complex Arthrofibrosis Arthroscopy of the Knee Arthrodesis Articular Cartilage Baker’s Cyst Bipartite Patella Blood Supply Blount’s Disease Bursitis Capsule Chondral Injuries of the Knee Chondromalacia Diff Dx Discoid Meniscus Dislocations of the Knee Extensor Mechanism Injuries of … Read more

Knee Fusion using External Fixation

– See: Ilizarov Technique – Discussion:     – advantages:           – allows arthrodesis in presence of active infection;           – external fixation is adjustable;           – allows access to the soft tissues;           – leaves no longstanding foreign … Read more

Knee Fusion following TKR

– See: Arthrodesis Menu: / PreOp Planning – Discussion:    – arthrodesis remains a treatment option for patients who have recurrent infection, or who are poor candidates for reimplantation;     – problems inherent in the performance of knee arthrodesis following a total knee arthroplasty complicated by infection are bone loss,            shortening, gait disturbance, & … Read more