The minimally invasive anterolateral approach combined with hip onlay resurfacing. Gerdesmeyer, L., Gollwitzer, H., Diehl, P., Buttgereit, B., & Rudert, M. Operative Orthopadie und Traumatologie, March, 2009.
doi  abstract   bibtex   
OBJECTIVE: Minimally invasive anterolateral approach in hip resurfacing with complete preservation of muscular integrity. INDICATIONS: Primary or secondary osteoarthritis of the hip. CONTRAINDICATIONS: APPROACH: None. Onlay implant: Females\textgreater55 years with osteoporosis. Males\textgreater60 years with osteoporosis. Severe varus deformity (CCD [collodiaphyseal] angle\textless100 degrees). History of metal allergy. Clinically relevant renal insufficiency. Radiologic appearance of avascular necrosis stage 3 and 4 according to Ficat. Femoral head cysts\textgreater1 cm in diameter. SURGICAL TECHNIQUE: Supine position with possible overextension of the hip, longitudinal incision along the intermuscular septum and blunt intermuscular dissection between gluteus medius and tensor fasciae latae, partial resection of the anterior capsule and anterior dislocation of the hip with complete proximal release of the capsule. Dislocation of the femoral head and dorsal positioning, reaming of the acetabulum to implant the cementless acetabular component, exposition and reaming of the femoral head in extension/adduction and external rotation, implantation of the cemented onlay endoprosthesis. POSTOPERATIVE MANAGEMENT: Prophylaxis of thromboembolism and periarticular ossification. Rehabilitation with weight bearing as tolerated starting on the day of surgery, ergometer training from day 4 after surgery. RESULTS: 31 patients with osteoarthritis underwent onlay resurfacing via a minimally invasive approach. The Harris Hip Score improved from 43.9 to 97.1 at 12 months after surgery. Adverse events such as fracture, dislocation, nerve or muscle lesions did not occur, and clinically significant thromboembolism or infection was not observed.
@article{gerdesmeyer_minimally_2009,
	title = {The minimally invasive anterolateral approach combined with hip onlay resurfacing.},
	volume = {21},
	doi = {10.1007/s00064-009-1606-x},
	abstract = {OBJECTIVE: Minimally invasive anterolateral approach in hip resurfacing with complete preservation of muscular integrity. INDICATIONS: Primary or secondary osteoarthritis of the hip. CONTRAINDICATIONS: APPROACH: None. Onlay implant: Females{\textgreater}55 years with osteoporosis. Males{\textgreater}60 years with osteoporosis. Severe varus deformity (CCD [collodiaphyseal] angle{\textless}100 degrees). History of metal allergy. Clinically relevant renal insufficiency. Radiologic appearance of avascular necrosis stage 3 and 4 according to Ficat. Femoral head cysts{\textgreater}1 cm in diameter. SURGICAL TECHNIQUE: Supine position with possible overextension of the  hip, longitudinal incision along the intermuscular septum and blunt intermuscular dissection between gluteus medius and tensor fasciae latae, partial resection of  the anterior capsule and anterior dislocation of the hip with complete proximal release of the capsule. Dislocation of the femoral head and dorsal positioning, reaming of the acetabulum to implant the cementless acetabular component, exposition and reaming of the femoral head in extension/adduction and external rotation, implantation of the cemented onlay endoprosthesis. POSTOPERATIVE MANAGEMENT: Prophylaxis of thromboembolism and periarticular ossification. Rehabilitation with weight bearing as tolerated starting on the day of surgery, ergometer training from day 4 after surgery. RESULTS: 31 patients with osteoarthritis underwent onlay resurfacing via a minimally invasive approach. The Harris Hip Score improved from 43.9 to 97.1 at 12 months after surgery. Adverse events such as fracture, dislocation, nerve or muscle lesions did not occur, and  clinically significant thromboembolism or infection was not observed.},
	language = {eng},
	number = {1},
	journal = {Operative Orthopadie und Traumatologie},
	author = {Gerdesmeyer, Ludger and Gollwitzer, Hans and Diehl, Peter and Buttgereit, Bjorn and Rudert, Maximilian},
	month = mar,
	year = {2009},
	pmid = {19326068},
	keywords = {*Hip Prosthesis, Adult, Aged, Arthroplasty, Replacement, Hip/instrumentation/*methods, Female, Follow-Up Studies, Humans, Male, Middle Aged, Minimally Invasive Surgical Procedures, Osteoarthritis/*surgery, Postoperative Care, Preoperative Care, Prosthesis Design, Risk Factors, Time Factors, Treatment Outcome},
}

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