Unexpected positive cultures of humeral head detected with Dithiothreitol in primary shoulder arthroplasty.

BACKGROUND: Unexpected positive cultures (UPCs) are frequently observed in primary shoulder arthroplasty and its clinical significance has not yet been well defined. The aim is to evaluate the UPCs in humeral head in primary shoulder replacement and to understand if UPCs increase in patients with risk factors for contamination (previous surgery or infiltrations). METHODS: Patients undergoing total shoulder replacement were enrolled in this prospective observational study. To reduce the risk of humeral head contamination, all known procedures to reduce C. acnes burden of the skin were implemented. Patients were divided into 2 groups, namely patients who had undergone previous rotator cuff repair or infiltration and patients with no risk factors for contamination. All the humeral heads harvested were treated with Dithiothreitol, in a specific device (MicroDTTect), to increase the sensitivity of the cultures for bacterial identification. The cultures were analyzed for aerobic and anaerobic bacteria for up to 14 days. RESULTS: The UPCs positivity rate of the 80 patients in the study was 19 % (15 patients). The positivity rates for UPCs in the group with and without risk factors were 30 % (12 patients) and 7.5% (3 patients), respectively. The rate of positive culture was higher in men (87%) than in women (13%). The observed positivity was due to Cutibacterium acnes and peptoniphilus asaccarolyticus, both slow-growing anaerobes. CONCLUSIONS: Patients with previous surgery or infiltrations had a 4-fold higher rate of positivity for UPCs compared with patients without previous risk factors. The higher percentage of positivity in patients with risk factors could be related to changes in the joint microenvironment after shoulder procedures. We do not know whether the presence of UPCs could be associated with the development of periprosthetic infections at longer follow-up.

Anatomical total shoulder arthroplasty revision to reverse shoulder arthroplasty using convertible glenoid: a systematic review of clinical and radiological outcomes.

PURPOSE: The aim of the present systematic review is to collect all the available evidence regarding the clinical and radiological results of revision to reverse shoulder arthroplasty (RSA) of modular anatomic shoulder prostheses (TSA) using a convertible metal-backed glenoid (MBG). METHODS: This study was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Studies investigating revision of TSA to RSA utilizing a convertible MBG and reporting clinical and radiological outcomes were identified. RESULTS: A total of five studies on the use of convertible modular glenoid component in the setting of TSA revision to RSA were finally included in the present systematic review. A total of 60 procedures were reported. Mean operative times was 65 min. Intraoperative complications included 3 cases of glenoid loosening. Only one case of dislocation was reported as postoperative complication. At mean follow-up of 32.3 months post-revision, no glenoid loosening was reported, VAS score decreased from 7.7 to 1.5, Constant Score increased from 24.8 to 57.6. CONCLUSIONS: Revision to RSA after failed TSA using a convertible modular glenoid component was associated with a low rate of intraoperative and postoperative complications, low surgical time and led to good results in term of pain relieve and functional outcomes. Given the complexity and risk associated with revision of anatomic shoulder prosthesis having a convertible glenoid may help to simplify the procedure and improve clinical results.

Vancomycin powder embedded in collagen sponge decreases the rate of prosthetic shoulder infection.

BACKGROUND: Shoulder arthroplasty is a successful procedure to treat degenerative and traumatic diseases of the glenohumeral joint. Periprosthetic infection represents an infrequent but dreaded complication (2%-4%). Application of intrawound vancomycin powder seems to reduce periprosthetic infections, but limited information is available on its efficiency in shoulder arthroplasty. The purpose of this study was to evaluate if the vancomycin powder embedded in a collagen sponge could decrease the rate of prosthetic shoulder infection. METHODS: A retrospective analysis of 827 patients undergoing total shoulder arthroplasty was performed. The study involved a control group of 405 patients and a group of 422 with the intraoperative insertion of intrawound vancomycin powder. Incidence of periprosthetic infection was evaluated comparing the 2 groups at a minimum follow-up of 12 months. Patient demographics, comorbidities, and perioperative information were compared between the 2 groups. RESULTS: No infection was observed in the group treated with intrawound vancomycin, and 13 cases of infection were observed in the control group (3.2%) (P value <.001) without subacromial vancomycin application. No wound complications requiring revision were observed as a result of intrawound vancomycin application. DISCUSSION AND CONCLUSION: Intrawound vancomycin powder significantly reduces the rate of periprosthetic shoulder infections without any increase in local and systemic aseptic complications at a minimum follow-up of 12 months. Our results support the use of intrawound local vancomycin for prophylaxis of shoulder periprosthetic infections.

Success of staged revision reverse total shoulder arthroplasty in eradication of periprosthetic joint infection.

INTRODUCTION: Management of periprosthetic joint infection (PJI) in shoulder arthroplasty remains a challenge, with no established gold standard treatment. This study presents the unique experience of a high-volume single-surgeon, single-institution approach on staged revision reverse total shoulder arthroplasty (RTSA) for infection. The authors theorize that staged revision RTSA is an effective treatment for PJI. MATERIALS AND METHODS: Between 2013 and 2018, 38 patients underwent a staged RTSA for treatment of PJI. Patient histories were collected and classified using Cierny-Mader classification. Infection workup for all patients included radiographs, laboratory indices, and computed tomographic aspiration arthrogram. PJI was identified based on high clinical and radiographic suspicion, elevated serologic markers, and/or aspirate culture results per 2018 International Consensus Meeting Shoulder guidelines on Orthopedic Infections. All patients underwent first stage with implant removal, irrigation and débridement, and antibiotic spacer placement. Next, intravenous antibiotics were administered by infectious disease consultants for a minimum of 6 weeks. Infection workup was then repeated and, if normalized, final-stage revision commenced with antibiotic spacer removal and revision to RTSA. If indices were persistently abnormal, an additional stage of débridement and spacer placement procedure was performed. Treatment failure was defined as recurrent periprosthetic infection after final prosthesis implantation or persistently elevated indices despite adequate débridement and spacer placement. RESULTS: Mean age of the cohort was 68 (standard deviation [SD] 8.9) years and mean follow-up was 33 (SD 14) months with 34 Cierny-Mader C hosts and 4 B hosts. Patients underwent a mean of 2 (SD 1.1) previous surgeries. The staged revision protocol was successful in 34 (89.5%) patients for management of PJI. Four patients (10.5%) were considered failures with recurrent infections at a mean of 13 months (range 2-26 months) after the final RTSA implantation and underwent repeat staged revisions. Of the 34 patients who had successful infection eradication, 31 had 2-stage treatment and 3 had to undergo 3 stages. There were no treatment-associated mortalities and 10 major complications (26%), including permanent neuropathy, instability, and periprosthetic fractures. The most common cultured microorganism was Cutibacterium acnes (18%), with no polymicrobial infections detected. DISCUSSION: Although there are multiple treatment options for PJI management, staged revision remains an effective means of treatment. Although there were several patients who required an additional stage of treatment, and a significant complication rate, staged revision RTSA proved successful in the ultimate eradication of the PJI.

Does arthroscopic superior capsule reconstruction using porcine dermal xenograft represent a viable option in case of massive irreparable posterosuperior rotator cuff tear?

INTRODUCTION: The aim of the present study was to evaluate clinical and structural outcomes of patients with a massive irreparable rotator cuff tear treated with arthroscopic superior capsule reconstruction using an acellular porcine dermal xenograft. We hypothesized that this procedure would lead to improvement in clinical and functional results and that structural failure would not influence the final clinical results. MATERIALS AND METHODS: A retrospective analysis on arthroscopic superior capsule reconstruction performed from October 2016 to January 2019 was conducted. The procedure was performed in patients with a massive irreparable posterosuperior rotator cuff tear without a severe glenohumeral arthropathy (Hamada I and II) and complaining a painful pseudoparalysis. Clinical evaluation and MRI study were performed before surgery and after at least 14 months. RESULTS: A comprehensive group of 21 patients with 11 females and 10 males and a mean age of 57 ± 8.5 years underwent arthroscopic superior capsule reconstruction. The graft had a thickness of 1.5 mm in the first 9 cases (43%) since it was used in a single layer. The graft was thereafter doubled for technique evolution in the following 12 cases (57%) achieving a graft thickness of 3 mm. Active ROM significantly improved with a mean increase of active forward flexion from 72.8° ± 7.5° to 120.6° ± 4.5°, active abduction from 68.3° ± 10.2° to 140.2° ± 8.8° and external rotation from 38.2° ± 11.2° to 56.7° ± 6.8° at the last follow-up. The mean Constant score significantly improved from 40.4 ± 6.7 to 73.3 ± 8.2. A graft tear revealed in 52% (11/21) of overall patients was significantly more frequent in single layer graft when compared to double layer (77% vs 33%, p < 0.05). Location and type of graft tear significantly influenced final outcomes. Patients with a healed (graft continuity with bone at medial and lateral insertion) or medial graft tear showed statistically significant better outcomes when compared with patients in which the graft was completely reabsorbed or torn on humeral side (p < 0.05). CONCLUSION: Arthroscopic superior capsule reconstruction using an acellular porcine dermal xenograft may be a viable alternative to treat massive posterosuperior rotator cuff tear in patients with a painful pseudoparalysis without anterosuperior escape. Structural failure may strongly influence final outcomes with significant role played by tear location.

Rotator cuff repair protected with subacromial balloon spacer shows a low rate of non-healing.

PURPOSE: The purpose of this study was to evaluate clinical outcomes and tendon integrity on magnetic resonance imaging (MRI) of chronic posterosuperior rotator cuff tears treated with single-row tensionless repair and subacromial balloon spacer as protection with a minimum follow-up of 2 years. The hypothesis of this study was that this procedure would have acceptable clinical outcomes and tendon-healing rate without increased complications. METHODS: This is a retrospective study of patients with chronic posterosuperior rotator cuff tears repaired with a single-row technique protected with a subacromial balloon device. Patients were followed up for a minimum of 2 years. Clinical outcomes were evaluated with American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) and Numerical Rating Scale (NRS) for pain. MRI study was obtained likewise after at least 2 years to assess tendon-healing rate. Statistical comparison was performed between pre-operative and at least 2-year clinical and imaging follow-up. RESULTS: Thirty-two patients were included in the study with a mean follow-up of 27 ± 7 (range 24-48). The mean age of this cohort was 58 ± 6 (range 41-66) including 15 males and 17 females. The tear size was on average 2.3 cm (range 2-4) and a mean of 2.1 triple-loaded anchors were used (range 2-3). The ASES score significantly increased from a mean of 39 ± 12 points to a mean of 89 ± 12 at the final follow-up (P < 0.001). Similarly, pain significantly reduced from a mean pre-operative NRS of 6.8 ± 1.4 to 0.8 ± 1.5 at the final follow-up (P < 0.001). MRI scans showed that repair occurred in 26 patients (81.3%). Significant higher ASES score was reached at final follow-up in patients with a "healed" (Sugaya I-III) tendon when compared to patients with an evidence of tendon discontinuity on MRI study (Sugaya IV-V), 93 ± 9 and 74 ± 13, respectively (P < 0.001). CONCLUSIONS: Arthroscopic repair of chronic posterosuperior rotator cuff tears using a single-row tensionless repair and subacromial spacer as protection resulted in an 81.3% of tendon integrity at a mean follow-up of 27 months. Clinical outcomes and pain scores significantly improved without severe complications reported after a minimum follow-up of 2 years. LEVEL OF EVIDENCE: III.

Editorial Commentary: Acute Repair of the Acromioclavicular Joint Capsule and Ligaments and Deltotrapezial Fascia Could Allow Biological Healing of High-Grade Acromioclavicular Separation-Coracoclavicular Ligament Graft Augmentation Could Be Indicated if Time to Surgery Is Greater Than 3 Weeks.

Surgical management of chronic acromioclavicular joint (ACJ) dislocations is a matter of controversy. In the acute setting of high-grade acromioclavicular separation, if a surgical repair of the ACJ capsule and ligaments and deltotrapezial fascia could allow biological healing of the ligaments themselves, this could be enough to restore the functional biomechanics of the joint; unfortunately, this is not true for chronic cases. In the latter situation, a surgical technique using biological augmentation such as autograft or allograft should be preferred. Time is very important for this injury, and a chronic lesion should be considered when treatment is being performed 3 weeks after trauma. The graft should be passed around the base of the coracoid or through a tunnel at the base of the coracoid itself and then at the level of the clavicle as anatomically possible to reproduce the function of the native ligaments. However, some studies have shown that passing the graft at the base of the coracoid and wrapping it around the clavicle could also achieve satisfactory outcomes. An arthroscopic technique, when used in combination, could be great to treat the associated lesions, which have a reported percentage between 30% and 49%. Finally, to restore the biomechanics of the ACJ, however, reconstruction of the acromioclavicular superior and posterior capsules together with the deltotrapezial fascia seems to be very important.

Elite professional goalkeepers report high rate of sport resumption after shoulder surgery.

PURPOSE: The aim of this study is to evaluate the return to sport after surgical treatment of shoulder injuries in professional goalkeepers in relationship with the mechanism of injury and the pattern of related shoulder lesions. METHODS: Twenty-six shoulders in nineteen elite male professional soccer goalkeepers were retrospectively analyzed considering multiple diseases (instability, rotator cuff, biceps or other tendon injuries). Data was collected for injury modality and context, pathological findings, surgical procedures, time, level of return to sport, and complications. RESULTS: The mechanism of injury was "mild trauma without contact" in 46% of the cases and 54% of injuries happened during training. 11 patients (42%) reported multiple pattern lesions and 9 patients (35%) classic anterior instability lesions. The mean time for return to differentiated training and unrestricted sport activity was 14 and 20.2 weeks, respectively. 15 athletes (62.5%) reported 100% return to sport, 4 (16.7%) to 90%, 1 (4.2%) to 85%, 3 (12.5%) to 80% and 1 athlete to 50%, stopping professional activity. 21% of the cases reported the persistence of some shoulder symptoms. 3 cases experienced a new injury. Patients with classic anterior instability had significantly lower age (30.7 vs 19.8 years, P = 0.001), experienced injury in different context and reported symptoms more frequently compared to multiple lesion patients (4/8 vs 0/10, P = 0.011). CONCLUSION: Professional elite goalkeepers which required shoulder surgery for different causes demonstrated high-rate level of return to play despite the persistence of mild symptoms. The high frequency of multiple lesions, patients' characteristics, injury context and mechanism, increase the concern for injuries in overstressed shoulder for this category of sport. LEVEL OF EVIDENCE: IV.

Pulsed electromagnetic fields after intramedullary nailing of tibial fractures: a case control study.

PURPOSE: To compare clinical and functional outcomes of two groups of patients undergoing reduction and nailing fixation for diaphyseal fractures of the tibia with (PEMF group) and without (control group) post-operative pulsed electromagnetic field (PEMF) application. METHODS: This is a retrospective study on 50 patients (mean age 43.3 years, 28 males and 22 females) with diaphyseal tibial fractures managed between 2017 and 2019. Twenty-five patients underwent reduction, nailing fixation, and PEMF application post-operatively (PEMF group) and 25 patients underwent nailing fixation. Radiographic imaging assessment was performed every month until fracture healing had been evident. Use of analgesics, fracture healing time, post-operative lower limb alignment, and post-operative complications were recorded. Patients were asked about return to preinjury activity. All patients were assessed at 3 months and at an average follow-up of 13 months. The VAS scale and Johner-Wruhs criteria were used for pain assessment and functional recovery, respectively. RESULTS: Comparing groups, VAS values were significantly lower in the PEMF group at three months and comparable at one year. The patients in the PEMF group took an average of 4.1 months to resume their preinjury activities, and control patients took an average of 5.3 months (P < 0.0001). According to the Johner-Wruhs score, the effective rate was 100% (25/25) in the PEMF group and 92% (23/25) in the control group (P = 0.14). CONCLUSIONS: PEMF application after intramedullary nailing is safe and reduces post-operative pain, use of analgesics, and the time of healing fracture. At one year, there is no difference in outcome measures, regardless of PEMF application.

Comparative cost-effectiveness analysis of the subacromial spacer for irreparable and massive rotator cuff tears.

PURPOSE: There is ongoing debate regarding the optimal surgical treatment of irreparable rotator cuff tears (IRCT). This study aimed to assess within the Italian health care system the cost-effectiveness of subacromial spacer as a treatment modality for patients with IRCT. METHODS: An expected-value decision analysis was created comparing costs and outcomes of patients undergoing arthroscopic subacromial spacer implantation, rotator cuff repair (RCR), total shoulder arthroplasty, and conservative treatment for IRCTs. A broad literature search provided input data to extrapolate and inform treatment success and failure rates, costs, and health utility states for these outcomes. The primary outcome assessed was an incremental cost-effectiveness ratio (ICER) of subacromial spacer implantation versus shoulder arthroplasty, RCR, and conservative treatment. RESULTS: Subacromial spacer is favorable over both arthroscopic partial repair and shoulder arthroplasty since it costs less than both options and increases effectiveness by 0.06 and 0.10 quality-adjusted life years (QALYs), respectively. While conservative treatment is the least costly management strategy, subacromial spacer results in a gain of 0.05 QALYs for the additional cost of 522 €, resulting in an ICER of 10,440 €/QALY gain, which is below the standard willingness to pay ratio of $50,000 USD. Strategies with an ICER of less than 50,000 USD are considered to be cost-effective. CONCLUSIONS: Based on the available evidence and reasonably conservative assumptions, subacromial spacer is likely to provide a safe, effective, and cost-effective option for patients with massive IRCTs. Furthermore, this cost-effectiveness analysis may ultimately serve as a guide for development of health care system and insurer policy as well as clinical practice.

Is there a difference in clinical outcomes and repair integrity between arthroscopic single-row versus transosseous (anchorless) fixation? A retrospective comparative study.

BACKGROUND: Few studies have investigated clinical and structural outcomes after transosseous (TO) repair. The purpose of this study was to compare structural and clinical outcomes of rotator cuff tear, repaired arthroscopically, with a single row (SR) or transossoeus (TO) anchorless technique. METHODS: 96 patients who underwent an arthroscopic repair for superior or posterosuperior rotator cuff tear using TO (n:54) or a SR (n:42) were retrospectively enrolled in this study after evaluation of clinical and surgical notes. Functional evaluation was performed with the adjusted Constant score, and American Shoulder and Elbow Surgeons (ASES) score. Postoperative cuff integrity was determined through MRI study. RESULTS: Patients were recalled after a minimum follow-up of two years. All the patients were available for the study. In the SR group the Constant rating system showed a significant improvement from a preoperative average rating of 44.8 to an average of 85.7. In the group of TO repair the Constant rating system showed a significant improvement from a preoperative average of 46.1 to an average of 87.6 postoperatively. According to ASES index scores, the average total score improved from 42.8 to 92.0 in the anchor group and from 40.4 to 94.6 in the TO group. There was no statistical difference between the two groups about clinical outcomes. Postoperative MRI revealed no differences in term of complete re-tears between the two techniques. In the SR group at MRI we observe significant more cases of rotator cuff with a Sugaya type III healing. CONCLUSIONS: Arthroscopic rotator cuff repair yielded successful clinical outcomes using SR and TO technique. However using the TO technique we saw less type 3 Sugaya readings on MRI suggesting a possible benefit with TO repair. LEVEL OF EVIDENCE II: Retrospective study.

Open capsular and ligament reconstruction with semitendinosus hamstring autograft successfully controls superior and posterior translation for type V acromioclavicular joint dislocation.

PURPOSE: Appropriate surgical management for type V complete acromioclavicular (AC) joint dislocation remains controversial. The purpose of this paper is to retrospectively report the clinical and radiographic outcomes of an open surgical technique consisting for AC joint ligamentous and capsular reconstruction using autologous hamstring tendon grafts and semi-permanent sutures. METHODS: Between January 2005 and December 2011, 32 consecutive patients with symptomatic type V complete AC joint dislocation underwent surgical treatment using the same technique. The median time from injury to surgery was 45 days (range 24-90). The average median postoperative clinical and radiographic follow-up time was 30 months (range 24-33). Clinical outcomes measures included the ASES score, the visual analog score (VAS), and subjective patient satisfaction score. Minimum follow-up was 2 years. RESULTS: ASES score increased from a median of 38.2 ± 6.2 preoperative to 92.1 ± 4.7 postoperatively (p ≤ 0.05). The median VAS score improved from 62 mm (range 45-100 mm) preoperatively to 8 mm (range 0-20 mm) at final follow-up (p ≤ 0.05). No patient experienced pain or discomfort with either direct palpation of the AC joint or with cross-body adduction. Final radiographs demonstrated symmetric AC joint contour in 25/32 (78%) patients. Seven patients (22%) radiographically demonstrated superior translation of the distal clavicle relative to the superior margin of the acromion but less than 50% of the clavicular width. 30/32 patients (93%) were able to return to their pre-injury level of work and sports activities. CONCLUSIONS: This novel surgical technique using a free graft and braided suture for simultaneous coracoclavicular ligament and AC joint capsular reconstruction successfully controls superior and posterior translations after type V AC joint dislocation and minimizes the incidence of persistent postoperative AC joint subluxation. LEVEL OF EVIDENCE: Retrospective case series, Level IV.

Arthroscopic Bankart repair: Have we finally reached a gold standard?

Traditionally, surgical stabilization of the unstable shoulder has been performed through an open incision. Arthroscopic Bankart repair with suture anchors is now widely considered the treatment of choice for anterior shoulder instability in patients who have failed conservative management. Many different factors have now been elucidated for adequate treatment of glenohumeral instability. Because of technical advances in instability repair combined with an increased understanding of factors that lead to recurrent instability, the outcomes following arthroscopic Bankart repair have significantly improved and approach those of open techniques.

A new anatomic technique for type II SLAP lesions repair.

PURPOSE: A new and more anatomical technique for SLAP II lesions repair is described. It consists in the reattachment of the medial aspect of the biceps anchor to the superior glenoid neck with a mattress stitch posterior and medial to the biceps anchor and a simple stitch placed anteriorly to the biceps. METHODS: From 2011 to 2012, 14 patients matching the inclusion criteria were selected for the study. A visual analogic scale, ROWE, UCLA, ASES and Constant scores were used to make evaluation. The passive ROM before surgery, at final follow-up, and the resumption of sports activities were analysed. RESULTS: The Constant, ASES, UCLA and ROWE scores passed from 64.6 (SD 13.9), 76.9 (SD 22.4), 28.4 (SD 23.8) and 53.6 (SD 20.6) to, respectively, 92.6 (SD 11.8), 108.3 (SD 8.5), 33.6 (SD 2.7) and 96.5 (SD 7.2) at final follow-up. Of the four patients who had participated in agonistic overhead athletics preoperatively, all of them were able to return to their preinjury level. No complications were observed in the present study. CONCLUSION: In our technique, the anatomy is respected leaving the articular aspect of the superior labrum loose and reinforcing the medial side. The clinical relevance of this work is that probably this technique could improve clinical results, giving a better mobility of the shoulder and a return to the same preoperative level in overhead athletes.

Massive irreparable rotator cuff tear and associated deltoid tear. Does the reverse shoulder arthroplasty and deltoid repair be a possible option of treatment?

BACKGROUND AND PURPOSE: Rupture of the anterior and middle deltoid muscle associated with rotator cuff tear arthropathy (RCA) could result in a definitive loss of shoulder function. The purpose of this study was to evaluate clinical outcomes after a concomitant reverse shoulder arthroplasty (RSA) and deltoid repair under these circumstances. MATERIALS AND METHODS: Between 2006 and 2012, 18 consecutive patients with a mean age of 69.7 years, affected by massive irreparable rotator cuff tear and associated dehiscence or rupture of anterior and middle deltoid muscle underwent this operation through a modified anterosuperior approach. Four patients referred a previous shoulder surgery and deltoid tear was iatrogenic. The other 14 cases had an attritional deltoid tears. The average follow-up was 64 months (range 25-121 months). RESULTS: The mean active anterior elevation passed from a preoperative mean of 53 ± 9.1 (range 45-70) to 132.7 ± 11.6° (85-155°), active external rotation passed from a preoperative mean value of 22.4 ± 3.6° (range 18-26) to an average of 33.7 ± 4.7° (range 30-40°). Mean Constant score increased from 42 ± 6.1 (range 31-51) pre-operatively to 72.3 ± 8.2 (range 57-82) post-operatively. At final review, deltoid contour subjectively was satisfactory to all patients with no palpable defects. CONCLUSION: RSA associated with a repair of deltoid tear could be a viable surgical option in cases of tear involving the anterior and middle deltoid associated with a RCA. Patient with a preoperative chronic axillary nerve neuropathy associated with a deltoid muscle tear should be cautioned about the possibility of lower functional outcomes.

Deep partial rotator cuff tear: transtendon repair or tear completion and repair? A randomized clinical trial.

PURPOSE: The purpose of this study is to compare the clinical and subjective difference between transtendon repair or complete/repair in two homogeneous groups of patients affected by deep partial articular supraspinatus tear. METHODS: Seventy-four patients were randomized in two groups of 37 patients each. The first group (A) was treated with arthroscopic transtendon repair while the second group (B) was treated with an arthroscopic completion of the tear and formal repair. All the patients were revaluated at a minimum 2 years of follow-up with Constant score and Visual Analogic Scale (VAS). RESULTS: Constant score improved by a mean value of 25 (95 % CI 21-28) (p < 0.0001) and of 29 (95 % CI 26-31) (p < 0.0001), respectively; VAS score decreased by a mean value of 3.4 (95 % CI 2.9-3.9) (p < 0.0001) and of 3.6 (95 % CI 3.3-4.0) (p < 0.0001), respectively. The improvement was higher in both groups for the ADL, and in Group B, the improvement in strength was higher than in Group A. There were no statistical differences between the two different techniques. CONCLUSION: Both repairing techniques of deep partial supraspinatus tear provide good results in terms of function and pain. There were no statistically significant differences between the two techniques. LEVEL OF EVIDENCE: Prospective comparative study, Level II.

The internal joint stabilizer for elbow instability: current concepts.

The management of residual elbow instability is challenging in both acute and chronic injuries. Among the available devices, the hinged external fixator provides an additional joint stabilization while allowing an early motion, but it is clumsy and associated to high rate of pin track complications. To address these issues, an internal joint stabilizer (IJS) has been recently developed. An easier recreation of the axis of rotation coupled to the reduced lever arm of the hinge is the root of the consistent and satisfactory results thus far observed. In addition, the device is more comfortable for the patients being an internal stabilizer. Nonetheless, a second surgery for the device removal is necessary, of which the timing is still not standardized. This current concepts paper describes literature regarding outcomes of the IJS focusing on the rate of maintained radiographic joint reduction, the resultant range of motion, and the associated complication profile.

Malunion of distal humeral fractures: Current concepts.

The incidence of complex articular fractures of the distal humeral in adults has increased and will be growing in the future due to the greater incidence of high-energy trauma and to the higher percentage of the elderly population. Successful treatment is challenging for the needed balance between the stability of often comminuted fractures and early motion. Malunion is a common complication after distal humerus fractures that is influenced by a variety of factors, such as biology, particularly the blood supply of the metaphysis, the nonanatomical reduction of the fracture, the methods of fixation, and mechanical failure. These can involve the intra-articular or extra-articular areas. The clinical presentation may be mainly with pain and instability as for the cubitus varus, or with disfunction and stiffness as for an intra-articular malunion. However, the symptoms will depend on the degree of articular surfaces damage and the degree of deformities in specific planes. The surgical treatment can be challenging, varying from supracondylar osteotomies and re-contouring arthroplasty for extra-articular deformities to interposition arthroplasty, and elbow replacement for intra-articular deformities.

Reverse Total Shoulder Arthroplasty with a Cementless and Metaphyseal Stem Fixation Is a Viable Option for the Treatment of Proximal Humeral Fractures with Calcar Involvement.

BACKGROUND: The purpose of the study was to evaluate the suitability of reverse total shoulder arthroplasty (RTSA) with a cementless and metaphyseal stem fixation as a treatment for complex proximal humeral fractures (PHFs) with a calcar fragment when this may be fixed with a steel wire cerclage. Clinical and radiographic outcomes were compared with the same RTSA for PHFs without a calcar fragment at a minimum of five-year follow-up. METHODS: A retrospective analysis was performed on acute PHFs "with a medial calcar fragment" (group A) and "without a calcar fragment" (group B) treated with a RTSA and cementless metaphyseal stem fixation. RESULTS: At an average follow-up of 6.7 years (5-7.8 years), no statistical difference was observed comparing group A (18 patients) to group B (50 patients) for active anterior elevation (141 ± 15° vs. 145 ± 10°, p = 0.67), active external rotation ER1 (49 ± 15° vs. 53 ± 13°, p = 0.55), and active internal rotation (5 ± 2 vs. 6 ± 2, p = 0.97). Similarly, a comparison of ASES score (89.2 ± 10 vs. 91.6 ± 9, p = 0.23) and Simple Shoulder Test score (91.1 ± 11 vs. 90.4 ± 10, p = 0.49) revealed no significant difference. CONCLUSION: RTSA with a cementless and metaphyseal stem fixation represents a safe and feasible treatment for complex PHFs with a medial calcar fragment when this may be fixed with a steel wire cerclage.

Can We Completely Trust in Automated Software for Preoperative Planning of Shoulder Arthroplasty? Software Update May Modify Glenoid Version, Glenoid Inclination and Humeral Head Subluxation Values.

BACKGROUND: The purpose of this study was to evaluate the impact of software updating on measurements of the glenoid inclination and version, along with humeral head subluxation performed by an automated 3D planning program. The hypothesis was that the software update could significantly modify the values of the glenoid inclination and version, as well as of the humeral head subluxation. METHODS: A comprehensive pool of 76 shoulder computed tomography (CT) scans of patients who underwent total shoulder arthroplasty (TSA) or reverse total shoulder arthroplasty (RTSA) were analyzed with the automated program Blueprint in 2018 and again in 2020 after a software update. RESULTS: A statistically significant difference of 8.1 ± 8.2 and 5.4 ± 7.8 (mean difference of -2.8 ± 5.0, p < 0.001) was indeed reached when comparing the mean glenoid inclination achieved with Blueprint 2018 and Blueprint 2020, respectively. The glenoid version, as well as the humeral head subluxation evaluations, were not significantly different between the two software versions, with mean values being -9.4 ± 8.9 and -9.0 ± 7.4 and 60.1 ± 12.6 and 61.8 ± 12.0, respectively (p = 0.708 and p = 0.115, respectively). In 22% of CT scans, the software update determined a variation of the glenoid inclination of more than 5° or 10°. CONCLUSION: The present study shows the software update of an automated preoperative planning program may significantly modify the values of glenoid inclination. Even though without a significant difference, variations were also found for the glenoid version and humeral head subluxation. Accordingly, these results should further advise surgeons to carefully and critically evaluate data acquired with automated software.