Better Constant Scores and Active Forward Elevation Using Deltopectoral Versus Anterosuperior Approach for Reverse Shoulder Arthroplasty: Matched Cohort Study

Purpose

To determine, from a sizable cohort of reverse shoulder arthroplasty (RSA), whether the deltopectoral (DP) or anterosuperior (AS) approach grant better outcomes at a minimum follow-up of 24 months.

Methods

The authors reviewed 743 RSAs in patients with primary osteoarthritis (OA) with or without rotator cuff lesions and secondary OA due to rotator cuff tears. The DP approach was used in 540 and the AS approach in 203. Pre- and post-operative constant scores (CSs) and shoulder range of motion were recorded.

Results

Of the initial cohort of 743 shoulders, 193 (25.7%) were lost to follow-up, 16 (2.1%) died, and 33 (4.4%) were revised; 540 shoulders were operated using DP approach (73%), of which 22 were revised (4.1%), while 203 were operated using the AS approach (27%), of which 11 were revised (5.4%). Propensity score matching resulted in two groups: 172 shoulders operated by DP approach, and 88 shoulders operated by AS approach. Comparing outcomes of the matched groups at 2 or more years also revealed that, compared to the AS approach, the DP approach resulted in significantly better post-operative CSs (67.3 ± 14.0° vs 60.8 ± 18.3, P = 0.017), active forward elevation (137° ± 27.4° vs 129° ± 29.8; P = 0.031).

Conclusion

At 2 or more years following RSA, the DP approach granted significantly better CS (by 6.5 points) and active forward elevation (by 8°) compared to the AS approach. The differences observed are clinically relevant and must be considered to manage patient expectations following RSA and for selecting surgical approach depending on their functional needs.

Level of evidence

III, comparative study.

Innovative Approach to Lateral Tibial Plateau Fracture: A Case Study on Anterolateral Submeniscal Arthrotomy With Cement Augmentation and Screw Fixation

Lateral tibial plateau fractures are generally present as depressed fractures. The lateral tibial plateau is more common than the medial tibial plateau, often due to a bumper injury. If depressed fragments are more than 8-10 mm, then surgical management is usually needed. Anterolateral fixation is frequently used for unicondylar lateral tibial plateau fractures. Here, we present an articular depressed lateral tibia plateau fracture in a Schatzker type 3 case. The fracture was managed through an anterolateral approach with sub-meniscal arthrotomy, allowing for direct visualization and subsequent fixation using bone cement and a cannulated cancellous screw. Postoperative imaging confirmed proper reduction, and the patient had a satisfactory outcome..

Anterolateral upper cervical approach for ventral C1-C2 meningioma

The surgical management of ventral upper cervical meningiomas poses significant challenges due to their deep location and limited accessibility. These tumors have the potential to compress or involve nearby neurovascular structures, leading to various neurological complications including inferior cranial nerve palsy, motor deficits, and sensory disturbances such as hypoesthesia, paresthesia, and impaired coordination. To address this issue, surgical intervention through an anterolateral or far lateral approach has been recognized as the optimal treatment strategy. In this video, the authors present a detailed demonstration of the operative technique using an anterolateral upper cervical approach to safely resect a ventrally located C1-2 meningioma.

Anterolateral versus posterolateral decompression and spinal stabilization in thoracolumbar Potts spine: a comparative study

AIM

To assess and compare the clinical, radiological, and functional outcomes of anterolateral and posterolateral decompression and spinal stabilization in the thoracolumbar tuberculous spine.

MATERIAL AND METHODS

30 patients with thoracolumbar spinal tuberculosis were treated surgically between September 2014 and 2018. Fifteen patients underwent anterolateral decompression and spinal stabilization from September 2014 to September 2016. These patients were studied retrospectively (group A). Fifteen patients underwent posterolateral decompression by costotransversectomy and spinal stabilization from September 2016 to September 2017 were studied prospectively. Neurological recovery, correction of kyphotic deformity, pain (visual analog score) and ESR, and duration of stay were assessed. Neurological outcome was assessed using Frankel grading, and pain was assessed using visual analog scale.

RESULTS

The average follow-up period in both the groups is 12 months. There was a statistically significant difference in the kyphotic angle correction between anterolateral and posterolateral groups at the end of 12 months (follow up). No statistically significant difference was found between the two groups for ESR, visual analog scale for pain, and neurological recovery (Frankel's grading) at the end of 12 months.

CONCLUSION

Both anterolateral and posterolateral approaches are sufficient thoracic and thoracolumbar tuberculous spine but, the posterolateral approach allows a significant correction of kyphotic angle, better improvement of pain and lesser duration of stay.

A Contemporary Clinico-Anatomical Guide to Craniovertebral Junction Surgery

Background  Surgical treatment of ventral and ventrolateral lesions of the craniocervical junction are among the most challenging neurosurgical pathologies to treat. Three surgical techniques, the far lateral approach (and its variations), the anterolateral approach, and the endoscopic far medial approach can be used to approach and resect lesions in this area. Objective  The aim of the study is to examine the surgical anatomy of three skull base approaches to the craniocervical junction and review surgical cases to better understand the indications and possible complications for each of these approaches. Methods  Cadaveric dissections with standard microsurgical and endoscopic instruments were performed for each of the three surgical approaches, and key steps and surgically relevant anatomy were documented. Six patients with appropriate pre-, post-, and intraoperative imaging and video documentation are presented and discussed accordingly. Results  Based on our institutional experience, all three approaches can be utilized to safely and effectively approach a wide variety of neoplastic and vascular pathology. Unique anatomical characteristics, lesion morphology and size, and tumor biology should all be considered when determining the optimal approach. Conclusion  Preoperative assessment of surgical corridors with 3D illustrations helps to define the best surgical corridor. 360 degree knowledge of the anatomy of craniovertebral junction allows safe surgical approach and treatment of ventral and ventrolateral located lesions using one of the three approaches.

Comparing the Anterior-Based Muscle-Sparing Approach with the Direct Anterior Approach in Hip Arthroplasty: A Systematic Review and Pairwise Meta-Analysis

Background and Objectives: The anterior-based muscle-sparing (ABMS) approach, which utilizes the interval between the tensor fasciae latae posteriorly, offers several advantages, such as the reduced risk of nerve injury and the freedom to choose various implants. Herein, we aimed to compare the outcome of ABMS to the direct anterior (DA) approach using pairwise meta-analysis techniques. Materials and Methods: A systematic search of the MEDLINE (PUBMED), Embase, and Cochrane Library databases was performed for studies published up to 7 June 2023, which compared the ABMS approach with the DA approach for hip arthroplasty. We compared (1) perioperative outcomes (operation time, visual analog scale (VAS) score, total opioid consumption, length of hospital stay (LOS), and the number of patients discharged to their homes); (2) postoperative complications (neuropraxia/nerve injury, dislocation, surgical site infection, intraoperative fracture, and reoperation rate); and (3) implant position (cup inclination, cup anteversion, and stem alignment). Results: Ten studies were eligible for meta-analysis, including 1737 patients who underwent hip arthroplasty with the ABMS approach and 1979 with the DA approach. The pooled analysis showed no differences in all outcome variables, including perioperative outcomes, postoperative complications, and the implant position between the two surgical approaches. Conclusions: In current meta-analysis, the ABMS approach demonstrated comparable results to the conventional DA approach in terms of both clinical and radiologic outcomes as well as postoperative complications. Furthermore, the ABMS approach has the advantage of a broader indication and fewer limitations in terms of the surgical position compared to the DA approach. Therefore, the ABMS approach can be even more beneficial as an option within MSA, surpassing the utility of the DA approach.

Comparison of Posterior and Anterolateral Surgical Approaches in Treating Adult Humeral Shaft Fractures

AIM

The purpose of this study is to compare the outcomes and complications of two different surgical approaches, the anterolateral and posterior approaches, for treating humeral shaft fractures.

MATERIALS AND METHODS

 Between January 2015 and May 2021, 51 patients with humeral shaft fractures were treated with anterolateral and posterior approaches. Twenty-nine patients were operated with the posterior approach (group 1) and 22 with the anterolateral approach (group 2). Statistical analyses were performed between the two groups regarding age, gender distribution, fractured side, body mass index (BMI), type of trauma, Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association (AO/OTA) classification, and follow-up time. Complications such as operative time, amount of bleeding, incision length and implant fracture, radial nerve palsy, wound infection, and nonunion were compared between the two groups. Functional results of the elbow joint were evaluated with the Mayo Elbow Performance Score.

RESULTS

 The mean follow-up period was 49.10±21.15 months (12-75 months) in group 1 and 50.00±23.71 months (range: 15-70 months) in group 2. There was no statistical difference between the groups in terms of age, gender distribution, fractured side, BMI, trauma type, AO/OTA classification, and follow-up time (p>0.05). There was no significant difference between the two groups in terms of operation time, intraoperative bleeding, and incision length (p>0.05). The mean Mayo Elbow Performance Score was 77.24±20.03 (range: 70-100 points) in group 1 and 81.36±8.34 (range: 70-100 points) in group 2, and no significant difference was found (p>0.05). When evaluated in terms of complications, there was no significant difference between the groups (p>0.05). While there was no significant difference between the two groups regarding elbow joint range of motion, the limitation was observed in more patients in group 1.

CONCLUSION

 Similar satisfactory treatment results were obtained in patients who underwent anterolateral and posterior approaches in treating humeral shaft fractures. Furthermore, no difference was found between the two approaches regarding complication rates.

Learning Curve for Short-Stem Total HIP Arthroplasty through an Anterolateral Approach

Background and Objectives: Short-stem total hip arthroplasty has become increasingly popular in recent years. While many studies have shown excellent clinical and radiological results, very little is known about the learning curve for short-stem total hip arthroplasty through an anterolateral approach. Therefore, the aim of this study was to determine the learning curve for short-stem total hip arthroplasty among five residents in training. Materials and Methods: We performed retrospective data analysis of the first 30 cases of five randomly selected residents (n = 150 cases) with no experience before the index surgery. All patients were comparable, and several surgical parameters and radiological outcomes were analyzed. Results: The only surgical parameter with a significant improvement was the surgical time (p = 0.025). The changes in other surgical parameters and radiological outcomes showed no significant changes; only trends can be derived. As a result, the correlation between surgical time, blood loss, length of stay, and incision/suture time can also be seen. Only two of the five residents showed significant improvements in all examined surgical parameters. Conclusions: There are individual differences among the first 30 cases of the five residents. Some improved their surgical skills faster than others. It could be assumed that they assimilated their surgical skills after more surgeries. A further study with more than 30 cases of the five surgeons could provide more information on that assumption.

Approaches for Total Hip Arthroplasty: A Systematic Review

These surgical procedures have their own challenges, limitations, and success rate. The choice of surgical approach will depend on many factors including the surgeon's choice, type of pathology, bone stock, age of the patient, and experience of the surgeon. Whichever approach is used for total hip arthroplasty (THA), the primary goals of the surgery would be pain relief and enhancement in the quality of the patient's life suffering from hip pathologies. To further understand the advantages and potential pitfalls associated with different surgical approaches, we conducted a review study comparing different surgical approaches for THA in terms of their clinical and functional outcomes. All the studies done on surgical approaches used in THA published articles in the English language and from 2015 onward were included in the review. The databases searched were COCHRANE, MEDLINE, PEDRO, CINHAL, etc. Search engines that were searched were Google Scholar, Pub Med, and Science Direct. As per the inclusion criteria, out of 50 studies, 26 studies were included in the study which underwent critical analysis. Considering all the factors reviewed from the literature, the posterior approach or posterolateral approach is optimally beneficial.

Abductor muscle function after anterolateral approach in patients with unilateral end-stage hip osteoarthritis undergoing total hip arthroplasty: A prospective study

Background

Total hip arthroplasty (THA) is a successful procedure for treating end-stage hip osteoarthritis (OA). Regarding the surgical approach for THA, the anterolateral (AL) approach, which requires anterior hemimyotomy of the gluteus medius muscle, has shown a long-term favorable outcome. However, to date, complete information related to hip abductor muscle outcomes after the AL approach is unavailable. This study therefore aimed to evaluate the postoperative outcome of patients who undergo THA using the AL approach in terms of hip abductor muscle recovery, pain, function, and muscle healing status.

Methods

Twenty patients diagnosed with unilateral end-stage hip OA underwent cementless THA with the AL approach. All patient procedures were performed by a single surgeon. Preoperative and postoperative data were collected at 2-week, 6-week, 3-month, and 6-month follow-up periods. Hip abductor muscle power was measured via handheld dynamometer. The healing of the musculotendinous repair was evaluated with magnetic resonance imaging at 9 months.

Results

After THA, hip abductor muscle power in the operated hip significantly increased as early as 3 months post-procedure when compared with the preoperative value (p < 0.05). The other parameters-including pain score, Harris hip score, and WOMAC score-significantly improved as early as 2 weeks post-operation (p < 0.05). In all patients, MRI scans showed good healing of the muscle repair site without a gap in the gluteus medius muscle. However, three patients (15%) had some fibrosis and tendon swelling at the repair site.

Conclusion

This study demonstrated that patients with end-stage hip OA could experience significantly improved hip abductor motor function as early as 3 months after undergoing THA with the AL approach. Moreover, despite patients experiencing anterior hemimyotomy of the gluteus medius muscle, no significant complications emerged at the muscle repair site in the AL approach.

Contributions of the ischiofemoral ligament, iliofemoral ligament, and conjoined tendon to hip stability after total hip arthroplasty: A cadaveric study

An adequate soft tissue balance is important in total hip arthroplasty (THA). This study assessed the contribution of the iliofemoral ligament, ischiofemoral ligament, and conjoined tendon to the range of hip rotation after THA and hip stability in response to axial traction. THA was performed in eight fresh-frozen cadaveric specimens via an anterolateral approach using a navigation system. The ischiofemoral ligament, the medial arm of the iliofemoral ligament, and the conjoined tendon were resected in that order. The ranges of external and internal rotation and the amount of movement of the femoral head in response to axial traction were measured with the hip in 10° of extension, the neutral position, and in 10°, 30°, and 60° of flexion. Resection of the medial arm of the iliofemoral ligament significantly increased the range of external rotation in 10° of extension, the neutral position, and in 10°, 30°, and 60° of flexion. The conjoined tendon was the most important inhibitor of internal rotation from 10° of extension to 30° of flexion. Although each single element had a minor role in stabilizing the hip when axial traction was applied, resection of two or more elements significantly affected joint stability. The iliofemoral ligament and conjoined tendon are the main inhibitors of external rotation and internal rotation, respectively, when THA is performed using an anterior or anterolateral approach. Resection of two or more elements could greatly affect hip stability when axial traction is applied.

Anterolateral approach may be superior to posterolateral approach in controlling postoperative lower limb discrepancy in primary total hip arthroplasty: A single-center, retrospective cohort study

OBJECTIVES

This study aims to investigate the possible association and comparison between anterolateral approach (ALA) and posterolateral approach (PLA) and postoperative lower limb discrepancy (LLD) in selective total hip arthroplasty (THA).

PATIENTS AND METHODS

April 2021 and July 2021, a total of 266 consecutive patients (126 males, 140 females; mean age: 46.7±13.6 years; range, 22 to 60 years) who underwent unilateral primary THA via the ALA or the PLA were retrospectively analyzed. The operations were performed by a single surgical team. All patients were divided into two groups according to the approach: ALA group (n=66) and PLA group (n=200). Relevant data were recorded. Diagnosis including hip osteoarthritis, developmental dysplasia of the hip (DDH), aseptic avascular necrosis (AVN), and inflammatory arthritis were noted. Perioperative follow-up radiographs were evaluated and measured to compare the postoperative LLD and offset. The association between two approaches and postoperative LLD and offset was analyzed using the univariate and multivariate linear regression analysis.

RESULTS

The mean follow-up was 20±3.7 (range, 16 to 25) months. Univariate analysis revealed that the postoperative LLD, the postoperative acetabular offset, and hospital costs were lower in the ALA group than the PLA group (p<0.01). However, the offset and length of stay were comparable between the two groups (p>0.05). Multivariate analysis revealed that the PLA (β=4.71; 95% confidence interval [CI]: 1.78 to 7.64), preoperative LLD (β=0.29; 95% CI: 0.21 to 0.37), DDH (β=5.01; 95% CI: 1.47 to 8.55), and AVN (β=3.81; 95% CI: 0.50 to 7.12) were the main contributors to the postoperative LLD.

CONCLUSION

Our study results suggest that the ALA may be superior to the PLA in controlling the postoperative LLD among some of the selective unilateral primary THA patients. Both the ALA and the PLA were comparable in terms of the restoration of offset.

Increased risk of high-grade heterotopic ossification using direct lateral approach versus a muscle-sparing anterolateral approach to the hip: radiological results from a randomised trial in patients with a femoral neck fracture treated with hemiarthroplasty

BACKGROUND AND PURPOSE

Hemiarthroplasty is a common treatment in patients with displaced femoral neck fracture. Due to positive claims of less pain, earlier mobilisation and favourable functional outcome, the anterior approaches to the joint are gaining in popularity. This randomised controlled trial investigated if component placement and heterotopic ossification differed between a muscle sparing anterior approach and a direct lateral approach.

PATIENTS AND METHODS

150 patients operated with an uncemented hemiarthroplasty, were randomised to anterolateral or direct lateral approach and assessed postoperatively radiologically. Measurements included leg-length discrepancy, femoral offset, femoral stem position, canal fill ratio and the presence of heterotopic ossification after 12 months.

RESULTS

There was an increased risk of high-grade heterotopic ossification in the direct lateral approach (p < 0.05). We found no statistically significant differences in leg-length discrepancy, femoral stem position or femoral offset.

CONCLUSIONS

Hemiarthroplasty performed in the direct lateral approach resulted in a higher incidence of Brooker grade 3 heterotopic ossification. Our results support equal geometrical restoration and similar component placement with both approaches.

CLINICAL TRIAL REGISTRY

ClinicalTrials.gov Identifier: NCT03974698Uncemented Hemiarthroplasty, Radiological Features Comparing Lateral Versus Anterolateral Approach https://www.clinicaltrials.gov/ct2/show/NCT03974698?term=raymond+tellefsen…draw=2…rank=1.

Differences in Infection Rates by Surgical Approach in Total Hip Arthroplasty and Patient Sex: A Systematic Review

Background

There exists conflicting data that patient sex may influence complication and revision rates when undergoing total hip arthroplasty (THA), specifically when comparing different surgical approaches. Differences in body fat or muscular distribution are proposed mechanisms, but these are poorly understood and not well described in current literature.

Methods

A systematic review of the literature was conducted from PubMed, Embase, and Web of Science from inception of the database through September 15, 2020. Studies were included if they included patients undergoing primary elective unilateral THA, delineated infections by surgical approach, and delineated infections by patient sex. Basic science, cadaveric, and animal studies were excluded as were case reports. Two authors screened abstracts and then extracted data from the full text article.

Results

Three studies, including 1,694 patients undergoing 1,811 THA were included. 80 infections were included. No study reported a statistically significant difference in infection risk by patient sex or surgical approach, though there was substantial heterogeneity in study design, approach, and analysis.

Conclusion

Limited data suggests no relationship between sexes across surgical approaches for infection rates. However, poor reporting and small sample sizes preclude definitive conclusions from being drawn. Future studies should emphasize reporting differences in outcomes by patient sex to better elucidate differences, if any, in adverse outcomes between sexes following THA across surgical approaches. Level of Evidence: IV.

Comparing Postoperative Leg Length Discrepancy and Femoral Offset Using Two Different Surgical Approaches for Hemiarthroplasty of the Hip

INTRODUCTION

The direct anterior approach (DAA) and anterolateral approach (ALA) may be used for hip hemiarthroplasty (HHA) as a treatment for femoral neck fractures. The DAA often utilizes intraoperative fluoroscopy to determine leg length and offset, while the ALA traditionally utilizes an intraoperative clinical exam to determine offset and leg length. This study will evaluate two techniques: the "grid fluoroscopy [GF] technique" and the "intraoperative exam [IE] technique," each performed by one of two separate surgeons, and compare each technique's accuracy to restore leg length and femoral offset in a patient population that underwent HHA.

METHODS

Two investigators retrospectively reviewed charts of 208 randomly selected patients who had an HHA from either a DAA or ALA performed by two different surgeons for the treatment of femoral neck fractures. Postoperative AP pelvis radiographs were measured to determine offset and leg length compared with the non-operative extremity. Non-normal continuous variables were provided by median and interquartile range. Data were analyzed with the Mann-Whitney U test and Student's t-test.

RESULTS

After inclusion and exclusion criteria, data were reviewed on 173 hemiarthroplasties. The mean age was 80.3 years (± 11.2 years). Of the surgical patients, 65.9% were female, and 70.9% identified their ethnicity as white. The DAA was used in 93 patients and ALA in 80 patients. Analysis comparing the two techniques demonstrated no statistically significant differences in median leg length between GF technique (1.02 IQR -0.1, 2.0 mm) and IE technique (1.25 IQR -2.4, 1.3 mm,) (p=0.67). There was also no statistically significant difference in offset between GF technique (1.3 IQR 0.2, 2.1 mm) and IE technique (0.6 IQR -2.7 mm, 3.2 mm) (p=0.13). However, a difference was found in mean length of surgery that was statistically significant. We found that the mean length of surgery for the IE technique was 74.8 ± 24.7 minutes versus the GF technique, which was 95.1 ± 23.0 minutes, (p<0.0001).

DISCUSSION

There was no significant difference between leg length and offset with the use of intraoperative fluoroscopy with DAA compared to no intraoperative imaging with ALA. Our study suggests that DAA and ALA are equally effective approaches for re-establishing symmetric leg length and offset in HHA for femoral neck fractures. In this study, the ALA had a shorter surgical time compared to DAA, potentially due to the utilization of intraoperative fluoroscopy for this particular technique during the DAA.

Anteromedial Surface Plating for Midshaft Fracture Humerus Through an Anterolateral Approach - A Better Option than Anterolateral Plating

Introduction

Osteosynthesis by plate fixation of humeral shaft fractures as a gold standard for fracture fixation has been proven beyond doubt. However, during conventional anterolateral plating Radial nerve injury may occur which can be avoided by applying plate on the medial flat surface. The aim of this study was to evaluate the results of application of plate on the flat medial surface of humerus rather than the conventional anterolateral surface.

Materials and Methods

This study was conducted between Oct 2010 to Dec 2015. One-hundred-fifty fracture shafts of the humerus were treated with the anteromedial plating through the anterolateral approach.

Results

One-hundred-fifty patients with a fracture shaft of the humerus were treated with anteromedial plating. Twenty were female (mean ±SD,28 years±4.5) and 130 were male (mean ± SD, 38 years±5.6). One hundred and forty-eight out of 150 (98.6%) patients achieved union at 12 months. Two of three patients developed a superficial infection, both of which were treated successfully by antibiotics and one developed a deep infection, which was treated by wound debridement, prolonged antibiotics with the removal of the plate and subsequently by delayed plating and bone grafting.

Conclusion

In the present study, we applied plate on the anteromedial flat surface of humerus using the anterolateral approach. It is an easier and quicker fixation as compared to anterolateral plating because later involved much more dissection than a medial application of the plate and this application of plate on a medial flat surface, does not required Radial nerve exposure and palsy post-operatively. The significant improvement in elbow flexion without brachialis dissection is also a potential benefit of this approach. Based on our results, we recommend the application of an anteromedial plate for treatment of midshaft fractures humerus.

No Differences in Midterm Sports Participation or Functional Scores After Total Hip Arthroplasty by Posterolateral Vs Anterolateral Approach

BACKGROUND

Patients undergoing total hip arthroplasty (THA) frequently question surgeons on return to sports. We compared midterm sports participation and functional scores after THA by posterolateral approach (PLA) vs anterolateral approach (ALA).

METHODS

Of 1381 patients who underwent uncemented ceramic-on-ceramic THA for primary osteoarthritis, 503 were excluded because of preoperative or postoperative lower limb surgery, leaving 594 operated by PLA and 284 by ALA. Forgotten Joint Score (FJS), Oxford Hip Score (OHS), satisfaction, as well as motivation, participation, and discomfort regarding 22 sports were collected. A 1:1 matching was performed to obtain 2 groups of PLA and ALA patients with similar age, gender, body mass index, and sports motivation.

RESULTS

Matching yielded 2 equal groups of 259 patients. There were no significant differences in FJS (P = .057), OHS (P = .685), satisfaction (P = .369), or rates of participation in light (P = .999), moderate (P = .632), or strenuous sports (P = .284). Participation in strenuous sports was reported by 50 PLA (19%) and 61 ALA (24%) patients, with differences for downhill skiing (22 vs 39), running (10 vs 19), and cross-country skiing (18 vs 10). More than 50% of motivated patients practiced most of their sports. Severe discomfort was reported similarly in PLA and ALA patients, mainly during running (13 vs 11), team ball games (9 vs 7), and downhill skiing (7 vs 8).

CONCLUSION

There were no significant differences between PLA and ALA patients in terms of OHS, FJS, satisfaction, or sports participation rates. There is little or no evidence to promote an approach based on sports participation or functional improvement.

LEVEL OF EVIDENCE

Level III, comparative study.

Endoscopic bimanual sharp dissection technique for gross-total resection of colloid cysts: technical note

Neuroendoscopic resection of colloid cysts has gained tremendous popularity over the last 2 decades because of good clinical outcomes and a low complication profile. However, in comparison to microsurgical resections, endoscopic resection has a lower rate of gross-total resection, which leaves the patient at risk for cyst recurrence. At present, there is still ongoing debate as to the best surgical approach for colloid cysts. Endoscopic resection as a technique has to compete with the good outcomes of microsurgical resections with respect to a long-term recurrence-free outcome. It is the authors' belief that gross-total resection should be the aim of endoscopic cyst resection. In this technical note, they describe their surgical technique for achieving safe gross-total resection of colloid cysts by using a ventriculoscopic system. The surgical technique includes a far anterolateral entry point, navigational guidance, bimanual sharp dissection, use of the endoscopic sheath as a retractor, the small-chamber irrigation technique, and the dry-field technique for hemostasis.

Total hip arthroplasty and lumbar spine disorders: Plain co-existence or mutual influence?

Lumbar spine disorders (LSD) might influence the outcome after total hip arthroplasty (THA). Despite a known common prevalence of LSD and degenerative hip disorders, this study investigates their mutual influence in case of co-existence with the purpose to advance surgeons planning and patient’s prognosis. Patients with and without LSD were compared before and at the one-year postoperative examination. For clinical evaluation the WOMAC was assessed. The radiological analysis focused on cup anteversion and inclination. The total group included 203 consecutive patients. The overall incidence of LSD was 51.0%. Patients with LSD were on average 4.3 years older and had a 1.8 higher BMI than non-LSD patients (P<0.05). The cup positioning and the clinical results were comparable between both groups before and at the last time of follow up (P>0.05). No hip dislocations nor clinical signs of impingement were seen.We can conclude that there is a high degree of co-existence of LSD and hip disorders. However, a strong negative impact of LSD to clinical or radiologic results could not be confirmed in our study.

Effects of surgical approaches and morphological characteristics on the follow up outcomes of patients with posterolateral tibial plateau fractures

This study aimed to study the effects of surgical approaches and identify the morphological characteristics associated with the 1-year follow-up outcome of patients with posterolateral tibial plateau fractures after successful surgery.We followed 200 postoperative patients for 1 year. The modified Hospital for Special Knee Surgery score (HSS score) was used to evaluate the functional recovery of the knee. We supposed 4 morphological characteristics in CT images acting as possible risk factors, including the anteroposterior diameters of posterolateral broken bone fragments (fragment-diameter), the damage to the posterolateral cortex of the tibial head (cortex-damage), the combinational fracture of the proximal fibula (fibula-fracture) or fracture of the medial tibial condyle (medial-condyle-fracture). Multivariate regression models were used to analyze the effect of these factors on the HSS score after adjusting the 2 surgical approaches and other confounders.The average HSS score was 85.1 ± 5.8 for all the patients. We treated 155 patients with the anterolateral approach and 45 patients with the posterolateral approach. The surgical approach, fragment-diameter, fibula-fracture, and medial-condyle-fracture were correlated with the HSS scores (P < .05). After adjusting for the above factors, the Schatzker type, age and gender, compared with anterolateral approach, the posterolateral approach could improve the HSS scores by an average of 3.7 points. The fragment-diameter <20 mm and posterolateral approach interacted on the HSS scores. Comparing posterolateral and anterolateral approaches, we found that the HSS scores of patients with fragment-diameter <20 mm increased by 6.1 points (95% CI: 4.1-8.2) in the posterolateral approach, while those with fragment-diameter ≥20 mm did not significantly improve the HSS scores.The surgical approach, fragment-diameter, fibula-fracture, and medial-condyle-fracture were independent risk factors associated with the follow-up outcome of patients with posterolateral tibial plateau fractures after successful surgery. The posterolateral approach could significantly improve the HSS score in the studied hospital.

The Ultimate Skull Base Maneuver Does Not Involve Removing Bone: Quantifying the Benefits of the Interfascial Dissection

Introduction  Several adjunctive osteal skull base maneuvers have been proposed to increase surgical exposure of the anterolateral approach. However, one of the easiest methods does not involve bone: the interfascial temporalis muscle dissection. Methods  Sequential dissections were performed bilaterally on five fixed silicone-injected cadaver heads. The amount of sphenoid drilling, scalp retraction, and brain retraction was standardized in all specimens. For each approach, surgical angles were measured for four deep targets: the tip of the anterior clinoid process, the internal carotid artery terminus, the origin of the posterior communicating artery, and the anterior communicating artery. Five surgical angles were measured for each target. Results  There were increases on the order of 20% in the anteroposterior (AP)-mid, AP-lateral, and mediolateral-anterior angles for all deep targets with interfascial approach versus a myocutaneous flap. An orbitozygomatic osteotomy additionally increased almost all the angles, but incrementally less so. Conclusion  An interfascial dissection increases the surgical exposure to a larger degree than additional osteotomies for several surgically relevant working angles. The addition of an orbitozygomatic osteotomy affords a particular benefit for the suprachiasmatic region. Increased adoption of interfascial mobilization or the temporalis muscle-an easily performed and low-risk maneuver-during anterolateral craniotomies may obviate the need for more involved skull base drilling.

Functional Outcome of a Coronal Shear Fracture of the Capitellum Managed by Herbert Screw Fixation Using the Anterolateral Surgical Approach

Fractures of the capitellum, particularly coronal shear fractures, are difficult to manage. The challenges are adequate surgical exposure, proper anatomic reduction, and stable fixation of these fractures. Our study included 10 patients with a coronal shear fracture of the capitellum without any involvement of the posterior condyle. All patients underwent open reduction and Herbert screw fixation using the anterolateral approach, with good functional outcome. In our opinion, this is a good option for the treatment of coronal shear fractures of the capitellum.

Anterolateral Approach with Endoscopic Assistance for Resection of a Craniovertebral Junction Chordoma

Craniovertebral junction chordomas can represent a surgical challenge, especially when intradural extension and contact with neurovascular structures is involved. To date, there is still controversy on the choice of optimal surgical corridor for such lesions, with endoscopic endonasal, far lateral and anterolateral corridors being those most commonly used. In this operative video, we present a case of craniovertebral junction chordoma with significant bone destruction and intradural extension ( Fig. 1 ). The tumor was safely removed using an anterolateral approach with transposition of the vertebral artery to gain access to the lateral craniovertebral junction. The endoscope is demonstrated to help with intradural tumor removal, providing a wide angle of view through a relatively narrow dural opening ( Fig. 2 ). In this video, nuances of the anterolateral approach, chordoma removal strategies and closure technique are presented in detail. A gross total resection was achieved, and the postoperative course was uneventful. In summary, the anterolateral approach with endoscopic assistance can offer a safe and effective corridor for the surgical management of craniovertebral junction chordomas.

The link to the video can be found at: https://youtu.be/pC0YxKgNoMY .

Effect of articular capsule repair on postoperative dislocation after primary total hip replacement by the anterolateral approach

Objective

Artificial hip dislocation is one of the most serious complications following total hip replacement. This study was performed to assess articular capsule repair in primary total hip replacement with the anterolateral approach (Watson-Jones incision) and its effect on postoperative dislocation.

Methods

Patients who underwent primary total hip replacement by the anterolateral approach in Tongren Hospital of Shanghai Jiao Tong University School of Medicine from June 2007 to June 2014 were retrospectively analyzed. The patients were divided into the repair and dissection groups based on the articular capsule repair status during surgery. Postoperative dislocation rates were compared between the two groups using the chi-squared test.

Results

The repair and dissection groups comprised 137 and 248 patients, respectively. All patients were followed up for 6 months to 5 years (average, 3.75 years). The mean age, sex, disease composition, and follow-up time were not significantly different between the two groups. Early postoperative dislocation occurred in 1 hip (0.7%) in the repair group and 13 hips (5.2%) in the dissection group.

Conclusions

During the anterolateral approach for primary total hip replacement, articular capsule repair may reduce the occurrence of early postoperative dislocation of the hip joint.

[Early functional recovery of direct anterior approach versus anterolateral approach for total hip arthroplasty]

OBJECTIVE

To evaluate the early clinical effects of direct anterior approach (DAA) versus anterolateral approach (ALA) on safety and functional recovery following total hip arthroplasty (THA).

METHODS

Between January 2015 and May 2016, a randomized clinical trial was performed at Guizhou Provincial People's Hospital. A total of 50 patients who underwent THA were allocated for either the DAA (n=25) or ALA (n=25). DDA group had 25 patients (25 hips), including 16 males and 9 females, with the mean age of (62±2) years, BMI of (23.26 ±4.95) kg/m²(range: 19.6 to 29.5), and preoperative Harris score of (33.4 ±15.5) (range: 17.9 to 48.9). Eleven cases were diagnosed as primarily hip osteoarthritis, 4 were developmental dysplasia of the hip (DDH, Crowe 2) and 10 were hip avascular necrosis (AVN, Stages 3 to 4). ALA group had 25 patients (25 hips), including 18 males and 7 females, with the mean age of (59±3) years, BMI of (25.35 ±5.8) kg/m²(range: 18.2 to 29.8), and preoperative Harris score of (38.6 ± 16.7) (range: 23.1 to 56.5). Ten cases were diagnosed as primarily hip osteoarthritis, 3 were developmental dysplasia of the hip (DDH, Crowe 2) and 12 were hip avascular necrosis (AVN, Stages 3 to 4). Operation time, incision length, intra-operative blood loss and functional recovery of hip postoperatively were compared between the two groups.

RESULTS

The surgical incision of both groups were stage I healing. The mean follow-up was 6 months. There was no significant difference regarding operation time, incision length, and intra-operative blood loss between the two groups. However, we also found that there was no significant difference in the Harris score 3 months and 6 months postoperatively. In addition, two patients in ALA group suffered claudication (physical examination: abduction dysfunction of hip). We also found that DAA group resulted in better recovery of abductor strength and gait than ALA group during early follow-up.

CONCLUSION

Both DAA and ALA could obtain good results of early curative effect following THA. Moreover, DAA resulted in better gait than ALA during early follow-up.

Anterolateral approach for lateral humeral condylar fractures in children: Clinical results

To evaluate the clinical outcomes of an anterolateral approach for lateral humeral condylar fractures in children. The patients aged < 15 years undergoing surgery with an anterolateral approach for humeral lateral condylar fractures between April 2005 and March 2014 were investigated. Medical records and radiographs from 15 patients were reviewed. Average patient age at surgery was 6.0 years (range, 3-10 years). Based on Jakob's classification, 12 patients had type II fractures, and 3 patients had type III fractures. Based on Milch classification, 1 elbow was type I, and 14 elbows were type II. The average postoperative follow-up duration was 16.4 months (range, 6-58 months). Postoperative complications, and radiographic and clinical findings, including range of motion and Flynn criteria were evaluated. To evaluate humeral deformity, Baumann angle (BA) and the carrying angle (CA) were calculated on anteroposterior radiographs. There were no postoperative complications, including secondary displacement, deep infection, nonunion, avascular necrosis, or cubitus varus or valgus deformity. In the injured elbow, follow-up radiographs revealed an average BA of 69.1° (range, 57-84°), versus 70.9° (range, 61-83°) on the contralateral side. The average CA on the injured side was 10.3° (range, 4-20°) versus 12.3° (range, 6-24°) on the contralateral side. BA gain and CA loss (affected- compared with contralateral sides) averaged -1.4° (range, -17° to 9°) and 2.3° (range, -2° to 6°), respectively. The mean range of motion in the affected elbow averaged 4.7° (range, 0-15°) in extension and 139.7° (range, 135-140°) in flexion. Over 5° loss of range of motion in the affected elbow compared with the contralateral side was not observed. However, 2 patients experienced over 5° loss of CA in the affected elbow versus the contralateral side. Based on Flynn criteria, clinical results for both cosmetics and function were excellent in 13 patients, and good in 2. The advantages of the anterolateral approach are combining an optimal view of the anterior articular surface of the trochlea and capitellum and a limited risk of devascularization injury. We strongly recommend an anterolateral approach for these fractures in children to prevent postoperative deformity and to achieve anatomical reduction and reliable fixation.

Treatment of AO/OTA Type C Pilon Fractures Through the Anterolateral Approach Combined With the Medial MIPO Technique

BACKGROUND

The purpose of this study was to evaluate the clinical and radiographic results of the treatment of AO/OTA type C pilon fracture via the anterolateral approach using a low-profile plate combined with medial minimally invasive plate osteosynthesis (MIPO).

METHODS

We retrospectively reviewed 28 ankles with AO/OTA type C pilon fractures that were treated using the anterolateral approach combined with medial MIPO. Mean age was 46 years (range, 19 to 75), and the mean follow-up period was 25 months (range, 14 to 50). Clinical results were assessed using the visual analogue scale (VAS) and the American Orthopaedic Foot & Ankle Society (AOFAS) Ankle-Hindfoot Scale. Range of motion (ROM) of the ankle joint was measured, and postoperative complications were investigated via chart review.

RESULTS

The VAS and AOFAS Ankle-Hindfoot Scale were 2 and 89, respectively, at the last follow-up. Ankle ROM at the last follow-up was 13 degrees (range, 5 to 20) in dorsiflexion and 38 degrees (range, 35 to 40) in plantarflexion. All the fractures united without additional surgery. One patient (3.6%) had a deep infection at the fibular fracture site, and 1 patient (3.6%) had partial skin necrosis.

CONCLUSION

This combined technique for AO/OTA type C pilon fracture resulted in good ROM of the ankle joint with reasonable function with a fairly low wound complication rate. However, further research on defined indications with a comparison group from multiple centers is necessary to determine if this technique is better than alternative surgical approaches.

LEVEL OF EVIDENCE

Level IV, case series.

Validation of patient-specific surgical guides for femoral neck cutting in total hip arthroplasty through the anterolateral approach

BACKGROUND

The aim of this study was to validate the effectiveness of neck-cut patient-specific surgical guides (PSGs) for femoral component implantation in total hip arthroplasty (THA) through the anterolateral approach compared with that without PSG.

METHODS

A total of 32 fresh cadaveric hips were included. Anatomical stem implantation with wide-base-contact PSG (AWP group) and without PSG (control group) were compared. The absolute errors between preoperative planning and PSG setting (E1), as well as those between preoperative planning and postoperative component implantation (E2) were evaluated using CT.

RESULTS

The E1/E2 values of AWP were 0.9±0.3°/0.6±0.6° in the coronal plane, and 1.7±0.8°/1.0±0.9° in the sagittal plane, and 1.0±0.6 mm/1.0±1.1 mm for the medial height. The E2 value in the sagittal plane (P=0.037) and the medial height (P=0.011) of AWP were significantly smaller than those of control group.

CONCLUSIONS

The neck-cut PSG through the anterolateral approach is effective for femoral component implantation.

The Direct Anterior Approach is Associated With Early Revision Total Hip Arthroplasty

BACKGROUND

The direct anterior approach for total hip arthroplasty (THA) has generated increased interest recently. The purpose of this study was to compare the duration to failure and reasons for revision of primary THA performed elsewhere and subsequently revised at our institution after the direct anterior vs other nonanterior surgical approaches to the hip.

METHODS

All primary THAs performed elsewhere and referred to our institution for revision were divided into the direct anterior approach (30 cases) or nonanterior approach groups (100 cases, randomly selected from 453 cases) based on the original surgical approach. Because all primary direct anterior THAs were originally performed after 2004 to eliminate temporal bias, we identified a subset of the nonanterior group in which the primary THA was performed after 2004 (known as the recent nonanterior group, 100 cases, randomly selected from 169 available cases).

RESULTS

The mean duration from primary to revision THA was 3.0 ± 2.7 years (direct anterior approach), 12.0 ± 8.8 years (nonanterior approach), and 3.6 ± 2.8 years (recent nonanterior), respectively. There was a significant difference in time to revision between the direct anterior and nonanterior approach groups (P < .001). Aseptic loosening of the stem was significantly more frequent with the direct anterior approach group (9/30, 30.0%) when compared with the nonanterior group (8/100, 8.0%, P = .007) and the recent nonanterior group (7/100, 7.0%, P = .002).

CONCLUSION

Revision of the femoral component for aseptic loosening is more commonly associated with the direct anterior approach in our referral practice.

[Imaging and biomechanics researches of reconstructing lumbosacral stability after L 5 vertebrectomy via anterolateral approach]

Objective

To investigate the feasibility of anterolateral approach for L 5 vertebral resection, bone grafting, and screw rod fixation by imaging and biomechanics researches.

Methods

Twenty formalized adult cadavers (12 males and 8 females) were randomly divided into 2 groups; L 5 vertebral resection, bone graft, and screw rod fixation was performed on 10 specimens by using anterolateral approach (experimental group), and on the other 10 specimens by combined anterior and posterior approach. CT scanning and three-dimensional reconstruction were performed in the experimental group; preoperative maximal safe entry angle and depth of screws and intraoperative actual entry angle and depth of screws were measured; the sacral screw position was observed after operation. The biomechanical test was done in 2 groups.

Results

Twenty specimens smoothly underwent L 5 excision and reconstruction. CT scan showed that there was no significant difference in maximal safe entry angle and depth of screws between males and females in experimental group before operation ( P>0.05); the maximal safe entry angle and depth were 51.93° and 47.88 mm for anterior screw, and were 37.04° and 46.28 mm for posterior screw. After operation, depth of the sacral anterior and posterior screws were appropriate, which did not pierce into the spinal canal. The biomechanical test results indicated that the flexion, extension, and lateral flexion displacements, and vertical compression stiffness showed no significant difference between 2 groups ( P>0.05).

Conclusion

For L 5 lesions not invading posterior column, to use L 5 vertebral resection, bone graft, and screw rod fixation by anterolateral approach is a safe and feasible method to reconstruct lumbosacral stability, with the advantages of no changing posture, less operation time and incision, and prevention of bone graft shift, but effectiveness need further be identified.

Comparison of Gait Motion Including Postoperative Trunk Deflection Between Direct Lateral and Anterolateral Approaches in Supine Total Hip Arthroplasty

BACKGROUND

A prospective study was conducted to compare the effect of an anterolateral approach in the supine position (ALS) with that of a direct lateral (DL) approach on gait motion, including trunk deflection, in walking after total hip arthroplasty. We hypothesized that trunk deflection in walking after ALS would be significantly improved in comparison with use of the DL approach.

METHODS

The subjects were 15 patients, with 7 in the ALS group and 8 in the DL group. Walking before and 9 and 28 weeks after surgery was analyzed using 3-dimensional motion analysis.

RESULTS

Walking velocity, stride length, hip joint range of motion in the sagittal plane in walking, and locomotion range of trunk inclination were significantly improved 28 weeks after surgery in both groups. In gait analysis, there were no significant differences between the 2 groups.

CONCLUSION

This study was conducted to compare the effect of ALS with that of a DL approach on locomotion in walking after total hip arthroplasty. Hip pain at 9 weeks after surgery was significantly improved using ALS compared to the DL approach, but there were no significant differences in gait function at 28 weeks after surgery using ALS or DL approach. Further long-term studies are required to examine differences between these procedures.

Open reduction and internal fixation of capitellar fracture through anterolateral approach with headless double-threaded compression screws: a series of 16 patients

BACKGROUND

Fracture of the capitellum is an often missed or inadequately treated serious elbow injury. Anatomic reduction and proper stabilization are essential to obtain articular congruity so that late-onset arthritis can be avoided. The main areas of interest in this intriguing fracture are the choice of implant and the surgical approach. We describe the use of anterolateral approach and headless double-threaded compression screws for the fixation of this fracture.

MATERIALS AND METHODS

This prospective study included 16 capitellar fractures. A computed tomography scan was done for delineating the fracture line and planning the fixation technique. All fractures were treated with headless double-threaded compression screws using an anterolateral approach, over a period of 3 years, with a mean follow-up of 2.3 years (range, 1.5-4 years).

RESULTS

The average time to bony union was 3.5 months (range, 2.5-5 months) with no malunion or nonunion. The mean range of flexion was 132° (range, 125°-135°). The average extensor lag was 10° (range, 0°-25°), but the range of motion remained functional in all patients. On the final follow-up, no evidence of osteonecrosis, post-traumatic osteoarthritis, or heterotrophic ossification was seen. The outcome was excellent in 10 patients, and 6 patients had a good result.

CONCLUSIONS

The success of management of a capitellar fracture depends on an early diagnosis by keeping a high index of suspicion and timely management. Adequate exposure of the fracture is of paramount importance to achieve accurate reduction. This can be satisfactorily achieved by an anterolateral approach to the elbow. An adequate fixation of the fractured fragments can be achieved by the use of headless double-threaded compression screws.

Propionibacterium acnes in shoulder surgery: true infection, contamination, or commensal of the deep tissue?

BACKGROUND

Propionibacterium acnes has been linked to chronic infections in shoulder surgery. Whether the bacterium is a contaminant or commensal of the deep tissue is unclear. We aimed to assess P. acnes in intraoperative samples of different tissue layers in patients undergoing first-time shoulder surgery.

METHODS

In 118 consecutive patients (mean age, 59.2 years; 75 men, 43 women), intraoperative samples were correlated to preoperative subacromial injection, the type of surgical approach, and gender. One skin, one superficial, one deep tissue, and one test sample were cultured for each patient.

RESULTS

The cultures were positive for P. acnes in 36.4% (n = 43) of cases. Subacromial injection was not associated with bacterial growth rates (P = .88 for P. acnes; P = .20 for bacteria other than P. acnes; P = .85 for the anterolateral approach; P = .92 for the deltopectoral approach; P = .56 for men; P = .51 for women). Skin samples were positive for P. acnes in 8.5% (n = 10), superficial samples were positive in 7.6% (n = 9), deep samples were positive in 13.6% (n = 16), and both samples (superficial and deep) were positive in 15.3% (n = 18) of cases (P < .0001). P. acnes was detected in the anterolateral approach in 27.1% (n = 32) of cases and in the deltopectoral approach in 9.3% (n = 11) of cases (P = .01; relative risk, 1.93; 95% confidence interval, 1.08-3.43). Thirty-five of the P. acnes-positive patients were men (81.4%), and 8 patients were women (18.6%; P = .001; relative risk, 2.51; 95% confidence interval, 1.28-4.90).

DISCUSSION

P. acnes was detected in more than one third of patients undergoing first-time shoulder surgery. Preoperative subacromial injection was not associated with bacterial growth. P. acnes was observed more frequently in the deep tissues than in the superficial tissues. The relative risk for obtaining a positive P. acnes culture was 2-fold greater for the anterolateral approach than for the deltopectoral approach, and the risk was 2.5-fold greater for men.

Anterolateral approach for an unusual pediatric capitellar fracture: a case report and review of the literature

A 9-year-old boy sustained a previously unreported salter-Harris III coronal plane fracture of the anterior capitellum after a 20-foot fall from a tree. the fracture was diagnosed on x-ray and an MrI confirmed the fracture pattern. During surgical treatment, an anterolateral approach to the elbow allowed direct visualization of the fracture fragment, anatomic reduction, and fixation with a bioabsorbable pin. At one year follow-up the patient's range of motion and function was symmetric to the contralateral extremity. this paper reviews the literature regarding the epidemiology, classification, and management of the rare pediatric capitellar fracture.