"Champagne Fracture": A Superior Fracture-Dislocation of the Proximal Humerus: A Case Report.

A 79-year-old right-handed woman presented with an indirect trauma to her left shoulder after a fall down the stairs. X-rays and computed tomography showed a four-part glenohumeral fracture-dislocation with a subcutaneous ectopic location of the humeral head in the retroclavicular space. A reverse total shoulder arthroplasty was performed using a deltopectoral approach with direct superior extraction of the humeral head. The result at 2 years was a subjective shoulder value of 80%, an absolute Constant score of 59, and a relative Constant score of 92/100. To the best of our knowledge, this is the first description in the literature of such a lesion of superior glenohumeral fracture-dislocation and its treatment.

Long-term survival analysis of 191 MAÏA® prostheses for trapeziometacarpal arthritis.

Surgery for trapeziometacarpal osteoarthritis after failure of medical treatment remains controversial. The aim of this study was to determine the long-term results of the MAÏA® trapeziometacarpal prosthesis (Lépine, Genay, France). This was a retrospective clinical and radiographic study of 191 MAÏA® trapeziometacarpal prostheses implanted between 2001 and 2016 from a single centre. The survival rate of the implants at the final follow-up of 12 years (range 17 days to 140 months) was 88%. Median pain score was 1/10. The median Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) score was 20. The rate of major complications was 9% (5% dislocations and 4% loosening) with all dislocations needing revision surgery. The risk of prosthetic dislocation was highest during the first 3 years, most often related to malposition of the trapezium implant. The MAÏA trapeziometacarpal prosthesis represents a long-term solution for surgical treatment of thumb rhizarthrosis. Level of evidence: IV.

The IBTIS score; a new prognostic score for arthroscopic biceps tenotomies.

INTRODUCTION: Shoulder pain associated with tendinopathy of the long head of biceps (LHB) is common. Surgical treatment with arthroscopic tenotomy of the LHB has been shown to be effective. However, it's efficacy is inconsistent. The objective of this study was to assess the pre-operative clinical and radiological prognostic factors of arthroscopic tenotomy of the long head of biceps, and to establish a predictive score for good responses to treatment; the IBTIS score (Isolated Biceps Tenotomy Index Score). HYPOTHESIS: Prognostic factors representing a good response to treatment of LHB tendinopathy by arthroscopic tenotomy exist. MATERIALS AND METHODS: We conducted a retrospective monocentric study including 64 patients who underwent surgery of the LHB by arthroscopic tenotomy (with or without tenodesis) between January 2018 and March 2020. We identified 2 patient groups (good responder group and poor responder group) from a 3-month post-operative clinical assessment, which included a subjective assessment comprising Single Shoulder Value (SSV), Constant score, C-Test, and pain level. Prognostic factors of a good response were then sought from the 2 groups using interviews, clinical examinations and pre-operative imaging. Based on these findings, a predictive score for a good response was established. RESULTS: All evaluation criteria demonstrated post-operative improvement: mean SSV (72.2 vs 50.7; p<0.001), relative constant (78.2 vs 64.3; p<0.001), pain level (3.2 vs 7; p<0.001) and C-Test (94.1 vs 85.6; p=0.07). 34 patients (58.6%) were considered good responders, while 24 patients (41.38%) were considered poor responders. There was a trend towards a favourable result for: age>65 years (p=0.01), rotator cuff rupture on preoperative imaging (p=0.01), Cross Arm Test (p=0.02), nocturnal pain (p=0.08), Yergason's test (p=0.16) and Speed's Test (p=0.22). Manual labour appeared to be an unfavourable factor (p=0.07). These factors were incorporated into the 10-point IBTIS score. A score greater than 5 was associated with a favourable result in more than 80% of patients (p<0.001). DISCUSSION: Our score consists of 7 items. We identified 7 pre-operative prognostic factors for a good result after LHB tenotomy. Over 65 years of age was found to be statistically significant in univariate analysis, as was visualization of rotator cuff rupture on pre-operative imaging. The Cross Arm Test was included given its high statistical significance. The Speed's Test and Yergason's Test are ubiquitous in the literature. Nocturnal pain was found in more than 80% of patients. Undertaking manual labour represented an unfavourable prognostic factor after arthroscopic surgery of the LHB. CONCLUSION: The IBTIS score (Isolated Biceps Tenotomy Index Score) is a pre-operative clinico-radiological score for the surgical treatment of arthroscopic tenotomy of the long head of biceps. Further studies are required to validate its prognostic accuracy. LEVEL OF EVIDENCE: III; case-control.

Arthroplasty for weight-bearing shoulders.

INTRODUCTION: Repeated transfers and wheelchair propulsion in patients with a neurological deficit of the lower limbs overloads the upper limbs mechanically, particularly the shoulders, which become weight-bearing. Under these conditions, arthroplasty implants are subjected to large stresses, even though this indication is controversial in such a context. We hypothesized that joint replacement in weight-bearing shoulders will relieve pain and improve range of motion, with a positive impact on function and autonomy, without increasing the complication rate relative to the able-bodied population. MATERIALS AND METHODS: This retrospective study involved 13 implants in 11 patients (4 total shoulder arthroplasty, 4 hemi-arthroplasty and 3 reverse shoulder arthroplasty) who had a mean follow-up of 33.7 ± 27 months (12-85 months). The clinical assessment included active and passive range of motion, pain, Constant score, and the Wheelchair User's Shoulder Pain Index (WUSPI). Radiographs were evaluated to look for signs of loosening and scapular notching. The patients' autonomy was evaluated through the number of transfers, means of locomotion (manual or electric wheelchair) and the functional independence measure (FIM). Two subgroups were defined based on the initial pathology: neurological shoulder or functional shoulder. RESULTS: The 11 patients had a mean age of 64±19 years (23-85 years) and were all long-term wheelchair users (electrical or mechanical). The pain level on VAS decreased from 8±3 preoperatively to 4±2 postoperatively (p=0.003). The mean Constant score increased 90% from 22±11 preoperatively to 42±23 postoperatively (p=0.008). The WUSPI score decreased by 73% from 80±30 to 21±15 (p=0.001). The range of motion improved in the subgroup of patients with functional shoulders but not in the subgroup of patients with neurological shoulders. The means of locomotion was altered in five patients (63%) by the acquisition of an electric wheelchair, but with no significant change in the number of daily transfers. There were no radiographic signs of implant loosening at the final assessment. Two implants had to be revised: one anatomical prosthesis was converted to a reverse configuration because of a secondary rotator cuff rupture; one case of early infection required a two-stage implant change. DISCUSSION: Joint replacement in weight-bearing shoulders is an effective medium-term solution for cuff tear arthropathy and glenohumeral OA, mainly for addressing pain, with slight improvements in range of motion, depending on the initial pathology. This intervention requires lifestyle adaptations such as changes in daily transfer practices and means of locomotion. LEVEL OF EVIDENCE: IV, retrospective study.

Scaphometacarpal arthroplasty: a report of ten cases of trapeziometacarpal prosthesis and trapeziectomy revision.

Loosening of the trapezial component is a main cause of failure of trapeziometacarpal prostheses. This report presents the preliminary results of scaphometacarpal prostheses used for revision of trapeziometacarpal prostheses and failed trapeziectomies. A retrospective multicentre study was conducted on ten patients. Four had revision surgery after failure of trapeziometacarpal prostheses, five after trapeziectomy and one after a trapezial silicone implant. Pain, mobility, strength, QuickDASH, satisfaction score and radiographs were assessed. Nine patients were assessed (one was lost to follow-up), with a mean follow-up of 34 months. The mean pain score was 1.2/10, Quick-DASH was 39 and opposition according to the Kapandji score was 8.6. Strength was 3 kg for key pinch and 13.6 kg for power grip. One failure was observed, with early loosening of the scaphoid cup. Scaphometacarpal arthroplasty is a reliable medium-term solution for revision of the loosening of a trapeziometacarpal prosthesis with trapezial damage and for failed trapeziectomy. Level of evidence: IV.