Muscle-sparing Vertical Thoracotomy in Children and Adolescents.

BACKGROUND: Traditional posterolateral thoracotomy (PLT) is a painful and potentially morbid operation associated with an extensive recovery and a long, unsightly scar. In contrast, vertical thoracotomy (VT) is designed to spare muscles, avoid skin flaps, and minimize incision length, thereby limiting postoperative pain, hastening recovery, and improving scar cosmesis. METHODS: We reviewed children aged 1-21 that underwent PLT and VT at our institution from 1/1/2013-12/1/2023. We analyzed demographic data, operative details, and clinical outcomes with special attention paid to total oral morphine equivalents (OME), time to ambulation, and wound complications. RESULTS: We identified 105 patients who underwent PLT and 74 who underwent VT. Both groups were heterogeneous with a greater proportion of oncology patients that received wedge resection in the VT group and congenital lung lesions that received lobectomy in the PLT group. VT patients tended to be older and heavier than PLT patients. Patients who underwent VT demonstrated improved time to ambulation (1.4 ± 0.3 vs 3.0 ± 1.4 days, p = 0.037) and oral morphine equivalent requirements (1.4 ± 0.4mgOME/kg vs 3.5 ± 1.8mgOME/kg, p = 0.035) compared to those who underwent PLT. Additionally, no patients in the VT group required division of the serratus or latissimus, compared to 8 (8%) in the PLT group (p = 0.004). CONCLUSION: Muscle-sparing vertical thoracotomy provides excellent exposure for most intrathoracic pediatric operations, results in a cosmetically acceptable scar that is easily hidden by the upper arm, may reduce the frequency of division of the latissimus and serratus, and does not worsen time to ambulation or post-operative opioid requirements. LEVEL OF EVIDENCE: III.

Complications and Survivorship After Aseptic Revision Total Hip Arthroplasty: Is There a Difference by Surgical Approach?

BACKGROUND: Revision total hip arthroplasty (rTHA) has traditionally been performed through the posterolateral approach (PA). Anterior approaches (AA) for rTHA are increasingly being utilized. The purpose of this study was to compare complications and survivorship from re-revision and reoperation after aseptic rTHA performed using an AA versus a PA. METHODS: We retrospectively reviewed patients who underwent aseptic rTHA either through an AA (direct anterior approach [DAA], anterior-based muscle sparing [ABMS]) or PA from January 2017 to December 2021. There were 116 patients who underwent AA-rTHA (DAA 50, ABMS 66) or PA-rTHA (n = 105). Patient demographics, complications, and postoperative outcomes were collected. RESULTS: The most common indication in both groups was aseptic loosening (n = 26, 22.4% AA, n = 28, 26.7% PA). Acetabular revision alone was most common in the AA group (n = 33, 28.4%), while both components were most commonly revised in the PA groups (n = 47, 44.8%). In all the AA-rTHA group, the index total hip arthroplasty was performed through a PA in 51% of patients, while the PA-rTHA group had the index procedure performed via AA in 4.8%. There was no statistically significant difference in re-revision rate between the DAA, ABMS, or PA groups (9.55 versus 5.3% versus 11.4%, respectively, P = .11). The most common overall reason for re-revision was persistent instability, with no difference in incidence of postoperative hip dislocation (n = 4, 6.8% DAA, n = 3, 5.3%, n = 10, 9.5% PA; P = .31). CONCLUSIONS: This study demonstrates no difference in complication or re-revision survivorship after aseptic rTHA performed through a DAA, ABMS approach, or PA, nor between anterior or posterior-based approaches. LEVEL OF EVIDENCE: Level III.

Hardware Removal and Conversion Hip Arthroplasty via a Single Interval Anterior Approach: Surgical Technique.

The supine 'off-table' anterior-based muscle-sparing (ABMS) approach is an established approach for primary total hip arthroplasty. The approach is performed with the patient positioned supine on a regular operating room table. It combines utilizing the Watson-Jones interval (without disrupting the abductor muscles) with principles of capsular management borrowed from the direct anterior approach. The approach may also be utilized for complex primary and revision hip arthroplasties. One clinical scenario the ABMS approach may be particularly well-suited to is conversion hip arthroplasty when retained hardware requires removal. The approach enables the surgeon to remove proximal femoral hardware and perform hip arthroplasty within the same muscle interval. This is in contrast to direct anterior approach, which entails separate windows being created on either side of the tensor fascia lata muscle to remove hardware and insert hip arthroplasty components, respectively. In this article, we describe our surgical technique for performing conversion total hip arthroplasty with hardware removal (sliding hip screw and plate in the discussed case) via a single interval with the supine off-table ABMS approach.

The Transaxillary Approach as a Direct Route in the Management of Upper Thoracic Spine Pathology: A Technical Note with Case Series.

This retrospective case series of prospective data aims to describe the transaxillary approach for the treatment of upper thoracic spine pathology. Various surgical techniques and approaches have been reported across the literature to address upper thoracic spine pathology, including the cervicothoracic approach, anterior transsternal approach, posterolateral approach, supraclavicular approach, and lateral parascapular approaches. These techniques are invasive. A minimally invasive, less morbid, and direct access approach to the pathology of the upper thoracic spine has not been reported in the literature. Patients with pathology affecting the first thoracic vertebra up to the sixth thoracic vertebra were classified into the upper thoracic spine group. Patients with pathology below the sixth thoracic vertebra were excluded. Patients not having a minimum follow-up of 12 months were also excluded. The study analyzed 18 patients. The mean preoperative modified Japanese Orthopedic Association score was 7.2±1.44, which improved to 10.16±1.2 (p<0.05). The majority (14/18) of the patients had an excellent outcome. Three patients had good outcomes, and one patient had a fair outcome. Five cases of intraoperative dural leak were recorded, and one patient had postoperative neurological deficit. The transaxillary approach is a safe, viable, muscle-sparing, and minimally invasive approach for ventral pathologies of the upper thoracic spine.

Trunk Muscle Function and Core Stability in Women Who Had Muscle-Sparing Pedicled Transverse Rectus Abdominis Myocutaneous Flap Breast Reconstruction.

OBJECTIVE: The long-term effects of the unilateral muscle-sparing pedicled transverse rectus abdominis myocutaneous (TRAMmsp) flap procedure on trunk muscle performances and core stability were investigated in women with breast cancer. METHODS: Forty women (mean age = 42.6 years) who had received breast reconstruction with the unilateral TRAMmsp flap procedure no less than 6 months earlier (mean = 10.3 [standard deviation, SD = 4.9] months) (TRAM group) participated, and 30 women who were healthy and matched for age (mean age = 41.2 years) served as controls (control group). Their abdominal and back muscle strength was assessed using the curl-up and prone extension tests, respectively, and their static abdominal muscle endurance and back extensor endurance were assessed using the sit-up endurance test in the crook-lying position and the Biering-Sørensen test, respectively. Core stability strength was assessed using a 4-level limb-lowering test (abdominal muscle test), and core stability endurance was assessed while lying supine with both flexed legs 1 inch off the mat while keeping the pelvis in a neutral position with a pressure biofeedback unit. RESULTS: Compared with the control group, trunk muscles of the TRAM group were weaker, showing less endurance, as were their core stability strength and endurance. Static trunk muscle endurances and trunk flexion strength were associated with core stability in both groups. CONCLUSIONS: Women exhibit trunk flexor and extensor weakness along with poor endurance and impaired core stability even after an average of 10 months from receiving the TRAMmsp flap procedure. Immobilization after surgery, with possible systemic inflammatory effects from surgery and chemotherapy, might have further contributed to the generalized weakness subsequent to the partial harvesting of the rectus abdominis. IMPACT: Women after breast reconstruction with the TRAMmsp flap procedure show long-lasting deficits of strength and endurance in abdominal muscles, back extensors, and core stability. Proactive measures including early detection and evaluation of impairments as well as timely intervention targeting these clients are important to minimize the dysfunction and support their return to community participation.

Bilateral Total Hip Arthroplasty: Outcomes of Staged Versus Simultaneous Procedures Performed Using an Anterior-Based Muscle-Sparing Approach.

BACKGROUND: The incidence of total hip arthroplasty (THA) in the United States continues to increase due to its ability to markedly improve patients' quality of life. This study investigated and compared the perioperative and postoperative outcomes of simultaneous (SI-THA) and staged (ST-THA) bilateral THA procedures using an anterior-based muscle-sparing (ABMS) approach. METHODS: This retrospective case control study evaluated perioperative and postoperative outcomes from primary bilateral SI-THA or ST-THA (within 365 days) performed with the ABMS approach by 3 surgeons at a single institution between January 2013 and August 2020. A total of 226 patients (113 in each cohort) were matched based on age, sex, body mass index, and comorbidity score. RESULTS: Compared to the ST-THA group, the SI-THA had shorter anesthesia duration (P < .001) and shorter length of stay (P < .001), but longer length of surgery (P = .002). There was no statistical significance between groups in blood transfusion rates, discharge dispositions, emergency department visits, hospital readmissions, or postoperative complications within one year. CONCLUSIONS: The results of this study demonstrate that SI-THA and ST-THA yield comparable results using the ABMS approach. Our perioperative and postoperative results suggest low rates of complications, emergency department visits, readmissions, and high rates of patient satisfaction scores. Therefore, both SI-THA and ST-THA can be considered by experienced surgeons as treatment for advanced bilateral hip arthritis.

Immediate post-mastectomy prepectoral breast reconstruction with animal derived acellular dermal matrices: A systematic review.

BACKGROUND: Animal-derived acellular dermal matrices (ADMs) are increasingly being used in prepectoral direct-to-implant (DTI) breast reconstruction. However, the indications and complication profile associated with this type of reconstruction remain unclear. This study aimed to perform a systematic review of the available literature on the use of animal-derived ADM in prepectoral DTI breast reconstruction. METHODS: Three different literature databases, namely, PubMed, Web of Sciences, and Embase were screened using the following keywords: "immediate" AND "pre-pectoral" OR "prepectoral" AND "ADM breast reconstruction." Animal-derived ADM used (porcine - Braxon® and non-Braxon® - and bovine - Surgimend®) anthropometric information, clinical data, and complications profile were considered. RESULTS: A total of 340 articles were initially identified, of which only 45 articles (5089 patients and 6598 reconstructed breasts) satisfied our inclusion criteria. The most widely used ADM was Braxon® in the context of conservative mastectomies. In most studies, a subcutaneous layer > 1 cm and lack of previous radiotherapy were considered prerequisites for this type of reconstruction. An increased risk of complications was found in smokers, patients who underwent radiation treatment, patients with high breast volumes, and patients with cancers requiring axillary dissection. Data related to the role of diabetes, high body mass index, and breast implant size on surgical outcomes were instead inconcludent. Age was not directly proportional to the complications. CONCLUSION: The complications associated with different animal-derived ADMs are generally comparable. The profile of patients required for eligibility for this type of reconstruction appears to have been identified and is in line with current recommendations.

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.

Outcomes of leaflet-shaped acellular dermal matrix with a thickness-gradient for abdominal fascial defect repair in muscle-sparing TRAM flap-based breast reconstruction.

BACKGROUND: Numerous fascial closure techniques have been used to reduce donor site morbidities after transverse rectus abdominis myocutaneous (TRAM) flap harvest. A leaflet-shaped acellular dermal matrix (ADM) with a thickness gradient was designed to cover the defect effectively and to withstand the pressure applied to the lower portion of the defect. The complication and functional recovery rates of the donor site of the custom ADM were compared with those of previous methods of fascial closure (primary closure and polypropylene mesh assisted closure). MATERIALS AND METHODS: A retrospective review of patients undergoing immediate or delayed breast reconstruction using muscle-sparing TRAM flaps was performed. Abdominal bulging, hernia, wound dehiscence, infection, seroma, and hematoma rates were compared. The Back Performance Scale measured four months postoperatively was compared to evaluate the donor site's recovery rate. RESULTS: A total of 173 patients were analyzed. The three groups did not differ in hernia, wound dehiscence, infection, and hematoma rates. However, the abdominal bulging rate was lower in the primary closure group, while the seroma rate was higher in the mesh group. Functional recovery was the fastest in the custom ADM group. CONCLUSION: A thickness-gradient, leaflet-shaped ADM can be effectively used as an onlay graft to cover the abdominal fascial defect, with similar complication rates, while providing a faster recovery of abdominal function.

Fascia turnover procedure at breast reconstruction using free TRAM flap for decreasing umbilical migration.

BACKGROUND: The ideal umbilical position is midway between the two iliac crests. Some patients complained that the umbilicus position shifted from the midline after the breast reconstruction with a free muscle-sparing transverse rectus abdominis musculocutaneous (MS-TRAM) flap. We considered that the fascia of the external oblique muscle could be applied to the rectus abdominis fascia defect. This study aimed to introduce this "fascia turnover procedure" and compare the umbilical position in this procedure with that in primary fascial closure for the MS-TRAM flap of breast reconstruction. METHODS: A total of 152 patients were enrolled (80 patients with fascia turnover (+) vs. 72 patients (-)). The patients' demographics were compared. Horizontal distances (right side: a; left side: b) were measured bilaterally from the lateral abdominal wall to the center of the umbilicus. Frontal abdominal photographs were taken preoperatively (a1, b1) and postoperatively (a2, b2). The rate of umbilical migration (= | (a1 - b1) / (a1 + b1) - (a2 - b2) / (a2 + b2) | × 100%) was calculated. Because the aponeurosis of the external oblique muscle is confirmed in front of the lateral side of the anterior rectus sheath, this procedure could be performed in cases with a medial defect. RESULTS: No significant differences in the patients' demographics, including abdominal bulging rates and abdominal wall defect widths were observed between the two groups. The rate of umbilical migration showed a significant difference (median 1.78% vs. 3.70%, P < 0.001). CONCLUSIONS: This procedure could decrease the rate of umbilical migration.

A new minimal-invasive approach for total hip replacement in sheep.

BACKGROUND: Over the last 50 years arthroplasty became the gold-standard treatment for disabling conditions of the coxofemoral joint. Variations of anterior, lateral, and dorsal incision have been applied, but as each approach requires the incision and reflection of various muscles to gain adequate exposure of the joint results are still controversial. OBJECTIVE: The purpose of this study was to develop a minimal-invasive, tissue-sparing approach in sheep with reduced risks in animal testing. METHODS: 12 mature sheep underwent hip surgery as part of a study to evaluate a hip resurfacing system. In line with the preliminary cadaveric tests a modified, minimal-invasive, musclepreserving surgical approach was sought after. RESULTS: We developed a surgical approach to the coxofemoral joint in sheep using only blunt tissue dissection after skin incision without any limitations in joint exposure or increased blood loss/duration of surgery. CONCLUSION: Even though limitations occur and femoral orientation in sheep differs from man, joint forces have similar relative directions to the bone with similar bony and vascular anatomy. Therefore, this minimal-invasive muscle preserving approach might be a safe and comparable alternative in still inevitable animal testing.

Outcomes of the Anterior-Based Muscle-Sparing Approach in Elective Total Hip Arthroplasty in Nonagenarians.

Background: As the population ages, total hip arthroplasty has become more common in elderly patients including patients over the age of 90 years. Efficacy in this age group has been established, though literature regarding safety of total hip arthroplasty in nonagenarians is mixed. The anterior-based muscle-sparing (ABMS) approach, which exploits the intermuscular plane between the tensor fasciae latae and the gluteus medius, has proposed benefits of fast recovery, excellent stability, and reduced bleeding and may be adventitious among elderly, more fragile patients. Methods: A total of 38 consecutive nonagenarians undergoing elective, primary total hip arthroplasty via the ABMS approach for any indication from 2013 to 2020 were identified, and information regarding operative outcomes and patient-reported outcomes was gathered from review of medical records and our institutional joint replacement outcomes database. Results: Included patients ranged from 90 to 97 years of age with the majority classified as American Society of Anesthesiologists score 2 (50%) or American Society of Anesthesiologists 3 (47.4%). The mean operative time was 74.6 minutes ± 13.6 minutes. Of all patients, 5 required a transfusion, 2 patients were readmitted within 90 days, and there were no major complications. The mean hospital length of stay was 2.8 days ± 0.8 days with 22 patients (57.9%) discharged to a skilled nursing facility. Limited patient-reported outcomes data showed statistically significant improvements in most outcomes scores at 6 months to 1 year postoperatively compared to preoperative scores. Conclusions: The ABMS approach is safe and effective in nonagenarians who may benefit from decreased amounts of bleeding and recovery times associated with the ABMS approach, which is evident from the low complication rates, relatively short hospital lengths of stay, and acceptable transfusion rates compared to previous studies.

Acetabular cup placement and offset control in robotic total hip arthroplasty performed through the modified anterolateral approach.

PURPOSE: The modified anterolateral approach (Röttinger) for total hip arthroplasty (THA) offers great advantages over conventional approaches, especially concerning early postoperative symptoms, which are mild and well tolerated by patients. Robotic-assisted implantation might facilitate rapid adoption of the modified anterolateral approach without exposing surgeons to risks encountered during the learning curve. This study posits that the use of robotic assistance in conjunction with the modified anterolateral approach for total hip arthroplasty (THA) can provide a substantial enhancement in the accuracy of cup placement in comparison to manual surgery. METHODS: Thirty-two robotic-assisted THAs met the inclusion criteria and were matched to 32 conventional cases. Acetabular cup inclination, anteversion, limb-length discrepancy, and acetabular offset were assessed using certified planning software by two independent observers using pre- and postoperative anterior-posterior radiographs. Data was analyzed for normal distribution. Chi2 test was used to determine whether implanted acetabular cups that were within Lewinnek's safe zones were influenced by type of implantation. Effect size estimates and statistical power analysis were also performed to appreciate the appropriateness of the chosen sample size. RESULTS: Robotic-assisted implantation was found to significantly improve acetabular cup placement in terms of inclination (p < 0.001) but not anteversion (p = 0.783). Although mean postoperative limb-length discrepancy and mean acetabular offset did not differ between groups, a significantly smaller variance was found in the robotic-assisted group (p < 0.001) and (p = 0.04), respectively. There were no significant differences between the two groups in terms of consistently implanting the acetabular cup within the Lewinnek safe zones p = 0.641 for anteversion and p = 0.230 for inclination, respectively. CONCLUSIONS: Our results show that although robotic-assisted acetabular cup implantation performed through the modified anterolateral approach did not significantly differ from conventional implantation, it did offer increased accuracy in cup positioning, acetabular bone preservation, and limb-length restoration.

Functional Outcomes of Anterior-Based Muscle Sparing Approach Compared to Direct Lateral Approach for Total HIP Arthroplasty Following Acute Femoral Neck Fractures.

Introduction: Total hip arthroplasty (THA) performed for femoral neck fractures (FNFs) is becoming a more frequent treatment in the active elderly population. Since there is limited research available presenting clinical outcomes after THA using the anterior-based muscle sparing (ABMS) approach, the aim of this study was to compare this surgical approach to the direct lateral (DL) approach in patients treated by THA for FNFs. Materials and Methods: We retrospectively reviewed the data prospectively collected as a part of our "Hip Fracture Unit" and included 163 patients who underwent THA from January 2016 to January 2019 for acute displaced FNFs. Results: A total of 132 patients who completed a minimum 2-years follow up (69 in the ABMS group and 63 in DL group) were included. The ABMS group demonstrated significantly shorter time to reach milestone for hospital discharge (1.5 Days vs 2.1 days, P = .018), while no statistically significant differences were detected in peri-operative complications. At 3 months, the timed up and go test, the Harris Hip Score (HHS) and the Oxford ip Score (OHS) were significantly better (P = .024, .032 and .034, respectively) in the ABMS group compared to the DL group. No differences were found in functional outcomes (HHS and OHS) nor in complication rate at 6, 12 and 24 months. Discussion: This is one of the first studies to analyze functional results of THA performed for FNFs through an ABMS approach. Results are in line with those already present in the Literature. Conclusion: ABMS approach allows earlier mobilization and better early functional outcomes, compared to DL approach, in patients undergoing THA for acute displaced FNF. No differences are found after 6 months in functional results and complications rate.

[Morbidity and quality of life following breast reconstruction by autologous latissimus dorsi, muscle sparing and perforator flaps]. / Morbidité et qualité de vie après reconstruction mammaire par lambeau de grand dorsal autologue, à épargne musculaire et perforant.

INTRODUCTION: Morbidity following autologous latissimus dorsi flap (ALD), muscle sparing latissimus dorsi flap (MSLD) and thoracodorsal artery perforator flap (TAP) is controversial. The purpose of this study was to measure morbity using Quick Dash at 1 month and 1 year following breast reconstruction with one of these three flaps. The second objective was the evaluation of quality of life using Breast-Q. PATIENTS AND METHOD: Thirty four consecutive patients who had undergone breast reconstruction were included in this monocentric and prospective study: 10 patients in the ALD group, 12 patients in the MSLD group and 12 patients in the TAP group. RESULTS: At 1 month and 1 year following surgery, the variation of Quick Dash was 13,63 and 2,38 in the ALD group, 3,41 and -1,13 in the MSLD group and 5,69 and 0 in the TAP group. Satisfaction whith breasts, psychosocial, sexual and chest well-being were higher in the ALD group. Satisfaction with back was higher in the MSLD and TAP groups. Back and shoulder well-being was comparable regardless of the flap. Seroma occurrence was very rare in case of TAP, rare and not abundant in case of MSLD and frequent in case of ALD. CONCLUSION: This study appears to confirm that immediate morbidity is less important with MSLD or TAP than ALD. Hoewever at one year following surgery, morbity seems to be comparable with the 3 flaps. Patients satisfaction seems to be higher with ALD except for the aspect of the back.

The Partial Removal of Rectus Abdominis Muscle Inserting into Ribs in Ipsilateral Pedicled TRAM Flap for Breast Reconstruction.

BACKGROUND: The purpose of this study was to introduce a new surgical technique for pedicled TRAM flap that removes a part of the rectus abdominis muscle inserting into ribs, and to analyze this technique in comparison with classical pedicled TRAM flap. METHODS: A retrospective review of patient charts from May 2006 to February 2016 was performed. The patient group that underwent the removal of the part of the rectus abdominis that inserts into the thorax (partial muscle resection; PMR group) was compared with the group that did not undergo this muscle resection (Classical group). The complications and aesthetic effects of surgery between the two groups were analyzed. RESULTS: There were 34 patients in the classical group and 28 in the PMR group. There were no significant differences in postoperative complications between these two groups. The rates of fat necrosis were 32.1% in the PMR group and 36.1% in the classical group. The postoperative aesthetic outcome of the inframammary fold showed no significant differences in outcome between the classical and PMR groups. However, all items received higher scores in the PMR group. CONCLUSIONS: The authors' new surgical method was associated with a positive cosmetic effect of improving inframammary fold aesthetics and could thus represent a new option for pTRAM breast reconstruction.

Thoracodorsal artery perforator flap, muscle-sparing latissimus dorsi, and descending branch latissimus dorsi: A multicenter retrospective study on early complications and meta-analysis of the literature.

The thoracodorsal (TD) vessels represent a complex vascular system that offers a variety of pedicled and free flaps. Variations of the classical latissimus dorsi (LD) flap have been developed to overcome its major drawbacks. The thoracodorsal artery perforator (TDAP) flap described by Angrigiani represents one of these options. Other techniques have been defined as "muscle-sparing" latissimus dorsi (MSLD) due to the preservation of the LD muscle and the TD nerve, in whole or in part. Nevertheless, the term "muscle sparing" has also been applied to the descending branch LD (DB-LD) flap which requires the denervation of the LD muscle. According to our knowledge, there are no articles in the literature reviewing and comparing the reconstructive options based on the TD vessels. We performed a systematic search in PubMed, Web of Science, and Cochrane databases to perform a literature review and meta-analysis about the reconstructive options based on the TD vessels. The primary outcome of interest was the percentage of flaps developing a specific early complication, i.e., hematoma of the donor site, seroma of the donor site, partial flap loss, total flap loss, wound dehiscence, and wound infection. Moreover, we analyzed the outcomes and complications of our cases, comparing the MSLD flaps, the DB-LD flaps, and the TDAP flaps. According to both our casuistry and the literature, the three techniques can be considered safe in terms of early donor site complications. According to the literature, MSLD has been shown to develop partial flap necrosis more frequently than the TDAP flap.

Muscle-Sparing Skin Crease Incision Posterolateral Thoracotomies in Pediatric Patients: Our Experience.

Context: Standard posterolateral muscle cutting thoracotomies in pediatric patients are associated with morbidities in terms of poor motor and esthetic outcomes and also more postoperative analgesia requirement, when compared with muscle-sparing technique. Aims: The aim of this study is to evaluate the outcomes of muscle-sparing skin crease incision posterolateral thoracotomies in pediatric patients in terms of abovementioned variables. Settings and Design: This prospective observational study was conducted over a period from January 2016 to July 2020 in a tertiary care teaching institute. Materials and Methods: All patients of stage 3 empyema and pulmonary hydatidosis were included in the study. Results: Thirty-nine patients fulfilled the inclusion criteria. There were 38 children with organized (Stage 3) empyema and one patient with bilateral lung hydatid. There were 24 males and 15 females; age ranging from 6 months to 15 years. Right thoracotomy was performed in 28, left in 10, and bilateral in one patient with lung hydatid. Adequate exposure was achieved in all cases. Decortication with complete excision of thickened parietal pleura with stripping of the visceral peel and release of the entrapped lung was performed in all 38 patients. In 5 children along with decortication, repair of bronchopleural fistula due to necrotizing pneumonia was performed. Bilateral thoracotomies with pericystectomies were performed with a gap of 3 weeks for lung hydatid. Lung expansion assessment at 3 months was satisfactory. Ultrasound assessment of the latissimus dorsi muscle and serratus anterior muscle at 4 weeks revealed complete integrity in all the cases. Most of the patients achieved satisfactory motor and esthetic outcomes. Conclusions: Muscle-sparing skin crease incision posterolateral thoracotomy is a viable alternative to standard posterolateral muscle cutting thoracotomy, especially in a resource-challenged setting. The technique is easy to perform with satisfactory exposure.

[Minimally invasive periacetabular osteotomy for adult hip dysplasia]. / Minimal-invasive periazetabuläre Osteotomie zur Therapie der Hüftdysplasie des Erwachsenen.

OBJECTIVE: Performance of a periacetabular osteotomy (PAO) using a minimally invasive approach for three-dimensional correction of the acetabular position. INDICATIONS: Symptomatic developmental dysplasia of the hip in adolescents and adults. CONTRAINDICATIONS: Advanced osteoarthritis of the hip, incongruence of the hip joint surfaces. SURGICAL TECHNIQUE: A periacetabular osteotomy is performed via a minimally invasive approach. RESULTS: In total, 39 patients were followed up for 3.5 (3-4.5) years. The lateral center-edge angle of Wiberg increased significantly from 16.1° (7-24°) to 30.5° (25-37°) (p < 0.0001), the acetabular index changed from 13.2° (2-25.3°) to 2.8° (-3-13°; p < 0.0001). Mean duration of surgery was 88 (57-142) minutes. No major complications occurred.