&lt;p&gt;A simple method to minimize leg length discrepancy in hip hemiarthroplasty&lt;/p&gt;

Wang, Guodong; Ai, Guo; Yu, Fei; Yang, Bo; Yu, Haomiao; Diao, Naicheng; Ma, Lifeng; Hua, Qiang; Zhao, Ermi

doi:10.2147/cia.s214935

Cited by 7 publications

(6 citation statements)

References 29 publications

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“…The reliability of the anatomical markers for the bilateral leg length discrepancy after hip arthroplasty for femoral neck fractures was compared. Wang et al ( 26 ) determined the osteotomy line and the depth of prosthesis implantation by measuring the diameter of the contralateral femoral head and the distance from the center of the femoral head to the apex of the lesser trochanter. A satisfactory bilateral lower extremity length was obtained after HA in 47 elderly patients.…”

Section: Discussionmentioning

confidence: 99%

“…It was combined with preoperative AIHIP planning ball-joint model number fitting for reduction to confirm the model number of the femoral head prosthesis. Wang et al ( 26 ) suggested that accurate osteotomy and measurement of the femoral side can reduce the bilateral leg length discrepancy after THA. In this study, the femoral “shoulder” was identified as the anatomical marker ( Figure 2B ), and the proximal end of the template was placed at the “shoulder” of the marked femur ( Figure 2D ), according to the osteotomy template, the osteotomy line was marked on the femoral neck, and then the osteotomy was performed accurately.…”

Section: Discussionmentioning

confidence: 99%

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A novel method of manual positioning based on anatomical mark (shoulder-to-shoulder) to prevent postoperative leg-length discrepancy for femoral neck fractures in hip arthroplasty

Zhang

Zheng²,

Liu³

et al. 2022

Front. Surg.

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ObjectiveTo determine whether the two lower extremities are of equal length after hip arthroplasty for femoral neck fractures, we developed a novel method of manual positioning based on anatomical mark (shoulder-to-shoulder) in hip arthroplasty.MethodsPatients with femoral neck fractures requiring hip arthroplasty from July 2020 to March 2022 in the orthopedic department of Jinjiang Municipal Hospital, Fujian Province, China were recruited. Hip arthroplasty was performed using the proposed “shoulder-to-shoulder” method of manual positioning based on anatomical mark in 52 patients with femoral neck fractures who met the inclusion criteria. “Shoulder-to-shoulder” was achieved by alignment of the marked femoral “shoulder” and the “shoulder” of prosthesis stem. There were 16 male and 36 female patients, with 27 undergoing total hip arthroplasty (THA) and 25 undergoing hip hemiarthroplasty (HA). The fractures were categorized according to the Garden classification: type II, type III, and type IV in 5, 11, and 36 patients, respectively. The vertical distance from the apex of the medial margin of the femoral trochanter to the tear drop line on both sides which was regarded as the length of both limbs were compared via postoperative imaging, and the apex–shoulder distance on the ipsilateral side measured via postoperative imaging was compared with those measured intraoperatively.ResultsAll patients completed the surgery successfully. The measurement results for the lower extremities after THA were as follows: contralateral group, 43.87 ± 5.59 mm; ipsilateral group, 44.64 ± 5.43 mm. The measurement results for the lower extremities after HA were as follows: contralateral group, 45.18 ± 7.82 mm; ipsilateral group, 45.16 ± 6.43 mm. The measurement results for the lower extremities after all arthroplasties were as follows: contralateral group, 44.50 ± 6.72 mm; ipsilateral group, 44.89 ± 5.90 mm. The results for the apex–shoulder distance were as follows: postoperative imaging, 19.44 ± 3.54 mm; intraoperative apex–shoulder distance, 27.28 ± 2.84 mm. Statistical analysis results indicated no statistically significant difference in the postoperative bilateral lower extremity length after hip arthroplasty (P = 0.75), while a statistically significant difference was found between the intraoperative and postoperative imaging measurements of the apex–shoulder distance (P < 0.01).ConclusionThe novel method of manual positioning based on anatomical mark (shoulder-to-shoulder) for femoral neck fractures in hip arthroplasty is simple and accurate, making it effective for preventing postoperative bilateral leg length discrepancy.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

A novel method of manual positioning based on anatomical mark (shoulder-to-shoulder) to prevent postoperative leg-length discrepancy for femoral neck fractures in hip arthroplasty

Zhang

Zheng²,

Liu³

et al. 2022

Front. Surg.

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“…In our previous study (13), we measured the contralateral side femoral head diameter (non-fracture side) and the distance from the femoral head center to the lesser trochanter in antero-posterior pelvic X-ray film before hip hemiarthroplasty for a patient with femoral neck fracture, and calculated the ratio of this distance to the diameter. During surgery, after measuring the femoral head diameter (fracture side) with a vernier caliper.…”

Section: Discussionmentioning

confidence: 99%

“…X-ray cannot accurately show the thickness of cartilage. Different from the best fit circle method (12), and same as our previous research (13), the circle measuring the femoral head diameter was drawn through the midline of the gap between the superior surface of the femoral head and the acetabulum. Previous study showed that the femoral head cartilage thickness was 1.76±0.30 mm and the acetabular cartilage thickness was 1.59±0.31 mm in this area, with an average difference of 0.17 mm between them (20).…”

Section: Discussionmentioning

confidence: 99%

Measurement of the relative position of the femoral head center, greater trochanter, and lesser trochanter

Wang¹,

Ai²,

Zhang³

et al. 2021

Ann Palliat Med

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“…With the progressive aging of the population, the incidence of hip fractures is increasing worldwide [ 1 ]. Hip arthroplasty is an effective therapy for treating femoral neck fractures, which can rapidly reconstruct hip function and avoid a series of complications such as infection and thrombosis caused by long-term bed rest, and can effectively reduce the morbidity and mortality rate while improving patients' quality of life [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

A simple method for restoring the femoral head center in hip arthroplasty: a 3-dimensional analysis in the Chinese population

Tian

Mao

Gao

et al. 2022

BMC Musculoskelet Disord

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Background Various authors have successfully demonstrated that the distance from the greater trochanter to the femoral head center (GTFHC) and the distance from the lesser trochanter to the femoral head center (LTFHC) can be used as parameters to determine the recovery of the femoral head center (FHC) during hip arthroplasty. It is necessary to undertake an anatomical study concerning the correlations between the greater trochanter (GT), the lesser trochanter (LT), and the FHC using data obtained from the 3D-CT reconstruction method. Methods The study comprised 293 patients (151 males and 142 females), with an average age of 65.06 years. The femoral head diameter(FHD), the linear distance from FHC to GT (GTFHC), and the linear distance from FHC to LT(LTFHC) were all measured and recorded data. The correlation between FHD with LTFHC and GTFHC was assessed using Pearson correlation coefficients, and the ratio of LTFHC and GTFHC to FHD was calculated from this ratio. All measured parameters were compared between the left and right sides and the sexes of the participants. Results The average ratios of GTFHC/FHD and LTFHC/FHD were 0.99 and 0.95, respectively .96% of the LTFHC had absolute lateral differences of < 4 mm . 92% of the GTFHC had absolute lateral differences of < 4 mm. Conclusion LTFHC and GTFHC are reliable reference parameters for preoperative planning and reconstruction of FHC of hip arthroplasty. The ratio displayed in this research may yield insight into a practical and straightforward method for orthopedic surgeons to perform hip arthroplasty in patients with femoral neck fractures. Ratios from studies based on the same race may be desirable for future work.

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<p>A simple method to minimize leg length discrepancy in hip hemiarthroplasty</p>

Cited by 7 publications

References 29 publications

A novel method of manual positioning based on anatomical mark (shoulder-to-shoulder) to prevent postoperative leg-length discrepancy for femoral neck fractures in hip arthroplasty

A novel method of manual positioning based on anatomical mark (shoulder-to-shoulder) to prevent postoperative leg-length discrepancy for femoral neck fractures in hip arthroplasty

Measurement of the relative position of the femoral head center, greater trochanter, and lesser trochanter

A simple method for restoring the femoral head center in hip arthroplasty: a 3-dimensional analysis in the Chinese population

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