The following section includes hip and knee cases performed by Dr. Darwin Chen.
These case studies are intended to provide information about the scope of Dr. Chen’s practice for both patients and referring providers. As you can see, our practice handles a wide variety of hip and knee disorders, ranging from routine arthritic joints to the most complex reconstructive problems.
Hip
Anterior Approach Hip Replacement
Complex Primary Hip Replacement
- Severe hip dysplasia (Crowe IV) – subtrochanteric shortening osteotomy
- Severe hip dysplasia (Crowe III) – acetabular augmentation
- Severe hip dysplasia (Crowe IV) – subtrochanteric shortening osteotomy and acetabular augmentation
- Complex THA for proximal femoral deformity
- Bilateral hip fusion conversion to THA
- Protrusio acetabuli
- THA for acute acetabular fracture
Minimally Invasive “Mini-Posterior” Hip Replacement
Revision Hip Replacement
- Pelvic discontinuity – cup/cage construct
- THA loosening with severe femoral and acetabular bone loss
- THA revision for a Paprosky 3B acetabular defect
- Revision of a Recalled Modular Neck THA
- Femoral revision for a loose cemented stem
- Bilateral THA revision for severe varus remodeling
- Revision THA for a severe periprosthetic hip fracture
Knee
Total Knee Replacement
Partial Knee Replacement
Revision Knee Replacement
Hip
Anterior Approach Hip Replacement
Complex Primary Hip Replacement
- Severe hip dysplasia (Crowe IV) – subtrochanteric shortening osteotomy
- Severe hip dysplasia (Crowe III) – acetabular augmentation
- Severe hip dysplasia (Crowe IV) – subtrochanteric shortening osteotomy and acetabular augmentation
- Complex THA for proximal femoral deformity
- Bilateral hip fusion conversion to THA
- Protrusio acetabuli
- THA for acute acetabular fracture
Minimally Invasive “Mini-Posterior” Hip Replacement
Revision Hip Replacement
- Pelvic discontinuity – cup/cage construct
- THA loosening with severe femoral and acetabular bone loss
- THA revision for a Paprosky 3B acetabular defect
- Revision of a Recalled Modular Neck THA
- Femoral revision for a loose cemented stem
- Bilateral THA revision for severe varus remodeling
- Revision THA for a severe periprosthetic hip fracture