Clinical orthopaedics and related research
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Clin. Orthop. Relat. Res. · Sep 2011
Multicenter StudyRelationships of the lateral femoral cutaneous nerve to bony landmarks.
The lateral femoral cutaneous nerve (LFCN) can be at risk during, for example, the insertion of pins in the anterior superior iliac spine (ASIS) during external fixation of the pelvis, total hip arthroplasty through a direct anterior approach, open surgery for impingement in the hip through an anterior approach, and periacetabular osteotomy. During surgery, the surgeon usually assumes the location of the LFCN by using the ASIS as a landmark. ⋯ The LFCN may emerge from the lateral border of the psoas major above or below the IC. The AC/AB ratio can help surgeons to find the LFCN in patients with different body types.
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Clin. Orthop. Relat. Res. · Sep 2011
Nerve monitoring during proximal humeral fracture fixation: what have we learned?
The incidence of neurologic injury after proximal humerus fractures is variable, ranging from 6.2% to as much as 67%. However, it is unclear what factors might contribute to these injuries or whether they can be prevented by intraoperative nerve monitoring. ⋯ Level III, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.
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Clin. Orthop. Relat. Res. · Sep 2011
Does reverse shoulder arthroplasty for tumors of the proximal humerus reduce impairment?
Normal function of the upper limb is seldom restored after limb-sparing surgery for tumors of the proximal humerus. The literature suggests superior shoulder function is achieved in the short term with reverse total shoulder arthroplasty compared to other techniques when performed for conditions with rotator cuff deficiency. It is unclear whether this superiority is maintained when reverse total shoulder arthroplasty is performed for tumors. ⋯ Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.
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Clin. Orthop. Relat. Res. · Sep 2011
Can reverse shoulder arthroplasty be used with few complications in rheumatoid arthritis?
Many patients with rheumatoid arthritis develop superior migration of the humeral head because of massive cuff tears, causing loss of active motion. Reverse shoulder arthroplasty could potentially restore biomechanical balance but a high incidence of glenoid failure has been reported. These studies do not, however, typically include many patients with rheumatoid arthritis (RA) and it is unclear whether the failure rates are similar. ⋯ Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.