Effect of Femoral Offset on Pain and Function After Total Hip Arthroplasty

Kevin, C.; Noticewala, Manish S.; Macaulay, William; Lee, Jonathan H.; Geller, Jeffrey A.

doi:10.1016/j.arth.2012.05.001

Cited by 154 publications

(133 citation statements)

References 28 publications

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“…16,22 It is associated with better range of movement, functional outcome, stability, and less wear. 10,11,27 Therefore, an equal or slightly increased femoral offset is preferred. In our series, the femoral offset was augmented in 103 (69%) hips.…”

Section: Discussionmentioning

confidence: 99%

“…2,3,[6][7][8][9] Restoration of the hip anatomy (such as femoral offset and leg length) after THA leads to improved functional outcome. 10 Restoration of the femoral offset (the distance from the centre of the femoral head to the line bisecting the long axis of the femur) improves hip abductor strength11 and range of motion, 11,12 and decreases limping, 13 dislocation risk, 14 cup strain, and polyethylene wear. 15,16 Restoration of leg length improves patient satisfaction, gait, and back pain; leg length discrepancy (which can be as high as 27%) is the major cause of medical malpractice claims after THA.…”

Section: Introductionmentioning

confidence: 99%

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Total Hip Arthroplasty Using a Short-Stem Prosthesis: Restoration of Hip Anatomy

Amenábar

Marimuthu

Hawdon

et al. 2015

J Orthop Surg (Hong Kong)

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Purpose. To evaluate hip parameters such as vertical centre of rotation (VCR), horizontal centre of rotation (HCR), femoral offset, and leg length after total hip arthroplasty (THA) using the Nanos short-stem prosthesis. Methods. Medical records of 73 men and 74 women aged 25 to 92 (mean, 63) years who underwent THA using the Nanos short-stem prosthesis by a single surgeon were reviewed. Prior to the surgery, the optimal cup and stem size, head length, and level of the neck osteotomy were determined using radiographs. Intra-operatively, the leg length and femoral offset were checked, and the level of neck resection and head length were adjusted. VCR, HCR, femoral offset, and leg length of the operated and contralateral sides were compared. Functional outcomes were assessed using the Harris Hip Score (HHS). Results. Compared with the normal contralateral hips, the operated hips had a mean increase of 0.4Total hip arthroplasty using a short-stem prosthesis: restoration of hip anatomy mm in VCR (p=0.032), a mean decrease of 1.4 mm in HCR (p=0.027), a mean increase of 0.6 mm in femoral offset (p=0.043), and a mean increase of 0.36 mm in leg length (p=0.035). For these respective parameters, the difference between the normal contralateral side and the operated side was within 5 mm in 89%, 80%, 71%, and 96% of patients. The HHS improved from a mean of 53 to 91 at one year (p<0.001). Conclusion. THA using the Nanos short-stem prosthesis enabled restoration of hip anatomy (VCR, HCR, femoral offset, and leg length).

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Total Hip Arthroplasty Using a Short-Stem Prosthesis: Restoration of Hip Anatomy

Amenábar

Marimuthu

Hawdon

et al. 2015

J Orthop Surg (Hong Kong)

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“…A relocation of COR by less than 5 mm in any direction horizontally or vertically has been described as optional by Wegner et al [19]. The same boundaries of 5-mm shortening or lengthening of the femoral offset have been described as the border defining short, normal, or increased femoral offset postoperatively after hip prosthesis [20,21]. We found that radiographic hip measures of the adult hip show clinical utility when evaluated from the perspective of reliability.…”

Section: Discussionmentioning

confidence: 84%

Reliability of measures used in radiographic evaluation of the adult hip

2015

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“…Even with the new techniques and technology available, this still proves to be technically challenging (Herman et al, 2011). Some previous studies indicate that FO was correlated with hip stability, joint reaction forces, PE wear, postoperative pain and ROM (Bourne & Rorabeck, 2002;Matsushita et al, 2009;Little et al;Cassidy et al, 2012). Consequently, restoring native FO is an important determinant of the success of THA.…”

Section: Discussionmentioning

confidence: 99%

Femoral Offset and its Relationship to Femoral Neck-shaft Angle and Torsion Angle

2014

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SUMMARY:The aims to study the femoral offset and its relationship to femoral neck-shaft angle and torsion angle. One hundred paired (50 males and 50 females) Chinese femurs were used to measure the femoral offset, femoral neck-shaft angle and torsion angle. The data were analyzed by SPSS software. Femoral offsets were male right 44.40±4.56 mm, left 42.70±4.95 mm; female right 39.90±6.00 mm, left 38.90±6.18 mm. Femoral torsion angles were male right 6.02±10.85°, left 7.08±9.30°; female right 10.02±11.69, °l eft 6.02±10.85°. Neck-shaft angles were male right 131.80±4.36°, left 134.00±4.78°; female right 132.10±5.94°, left 132.80±4.93°. There were no sexual differences in the two femoral angles (P>0.05) while there was a significant sexual difference in the femoral offset (P<0.01). The differences between left and right femoral offset and neck-shaft angle were significant (P<0.01). Clinically, our results indicate that FO could be obtained using the regression equation when the torsion angle and/or neck-shaft angle is measured.

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Effect of Femoral Offset on Pain and Function After Total Hip Arthroplasty

Cited by 154 publications

References 28 publications

Total Hip Arthroplasty Using a Short-Stem Prosthesis: Restoration of Hip Anatomy

Total Hip Arthroplasty Using a Short-Stem Prosthesis: Restoration of Hip Anatomy

Reliability of measures used in radiographic evaluation of the adult hip

Femoral Offset and its Relationship to Femoral Neck-shaft Angle and Torsion Angle

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