OBJECTIVETo investigate the relationship of the greater tuberosity and the lateral fin of the prosthesis by using cadaveric research.

METHODSNine pairs of fresh-frozen upper extremity specimens (n = 18) were collected. Two-part anatomical neck fracture models were created by osteotomy along the anatomical neck. A standardized humeral head replacement procedure was carried out. The prosthesis was implanted in 20 degrees and 40 degrees of retroversion respectively, and the distance between the bicipital groove and lateral fin of the prosthesis was measured.

RESULTSThe lateral fins of prostheses in all specimens were located behind the bicipital groove. The average distances were 7.3 mm in 20 degrees retroversion and 4.0 mm in 40 degrees retroversion.

CONCLUSIONIt is better to fix the greater tuberosity over the lateral fin during humeral head replacement.

Arthroplasty, Replacement ; methods ; Humans ; Humerus ; anatomy & histology ; surgery ; Shoulder Fractures ; surgery ; Shoulder Joint ; anatomy & histology ; surgery

OBJECTIVETo investigate the indication, perioperative announcements, selection of prosthesis and clinical results of shoulder hemiarthroplasty for the treatment of complex proximal humeral fractures.

METHODSA total of 55 patients who suffered from complex proximal humeral fractures were treated by shoulder hemiarthroplasty. The mean age was 55.6 years and mean follow-up period was 25.1 months. The scoring system modification for hemiarthroplasty (SSMH) had been adopted for evaluation at the latest follow-up.

RESULTSThe pain was obviously relieved in all patients. Fifty patients were painless and 5 patients had slight pain. The mean range of motion was 100 degrees (90 degrees-110 degrees) in abduction, 95 degrees (80 degrees-100 degrees) in forward flexion, 35 degrees (30 degrees-40 degrees) in external rotation and internal rotation was confined at L2 level (L1-L3). The mean SSMH score was 27.9 (24-29). Fifty patients (90.1%) were satisfied with the clinical outcome.

CONCLUSIONSShoulder hemiarthroplasty is an effective method to treat complex proximal humeral fractures. The proper selection of patients and prosthesis, good operation skill and enough functional exercise are the key points of successful treatment.

Adult ; Aged ; Arthroplasty, Replacement ; methods ; Female ; Humans ; Male ; Middle Aged ; Shoulder Fractures ; surgery ; Shoulder Joint ; surgery

Arthroplasty, Replacement ; Fracture Fixation, Internal ; methods ; Humans ; Shoulder Fractures ; therapy ; Shoulder Joint ; surgery

Arthroplasty, Replacement ; methods ; Clavicle ; injuries ; Fractures, Bone ; surgery ; Humans ; Joint Instability ; surgery ; Shoulder Fractures ; surgery ; Shoulder Injuries ; Shoulder Joint ; surgery

OBJECTIVETo evaluate the short-term results of humeral head replacement for the treatment of four-part proximal humeral fractures or fracture-dislocations.

METHODSTwenty-five patients (11 male and 14 female)with four-part proximal humeral fractures or fracture-dislocations underwent humeral head replacement. The average age was 68.2 years (ranging from 56 to 77 years). All cases were followed up and evaluated the clinical results including pain, function and range of motion of shoulder with Neer scoring system.

RESULTSThe follow-up ranged from 12 to 40 months with an average time of 29.3 months. No prosthesis loosening, prosthesis dislocation, postoperative infection, nerve injury or periprosthesis fractures occurred. The results were excellent in 8 cases, good in 11 cases and fair in 6 cases. The excellent and good rate was 76% according to Neer scoring system.

CONCLUSIONReplacement of humeral head prosthesis could attain good short-term results for four-part proximal humeral fractures or fracture-dislocations. The key to improve the postoperative results is meticulous surgical techniques and appropriate correct consecutive physical therapy.

Aged ; Arthroplasty, Replacement ; methods ; Female ; Humans ; Joint Prosthesis ; Male ; Middle Aged ; Shoulder Dislocation ; surgery ; Shoulder Fractures ; surgery ; Treatment Outcome

OBJECTIVE: To evaluate the clinical outcomes of reverse total shoulder arthroplasty as a revision procedure for the failed fixation of proximal humeral fractures in the elderly patients. METHODS: A retrospective analysis was performed on 8 patients with failed internal fixation of proximal humeral fractures from May 2014 to March 2020, including 3 males and 5 females, aged from 65 to 75 years old. All 8 patients underwent reverse total shoulder arthroplasty, and the mean time between initial fixation and reverse total shoulder arthroplasty ranged from 8 to 16 months. Range of motion(ROM), University of California at Los Angeles(UCLA) shoulder score, visual analogue scale (VAS), self-rating anxiety scale(SAS), and Constant-Murley score of shoulder function were assessed pre-operatively and at the last follow-up. Complications relating to the surgery were recorded. RESULTS: All 8 patients successfully followed up. The mean follow-up after reverse total shoulder arhroplasty ranged from 16 to 28 months. The range of motion (forward flexion, external rotation, abduction and internal rotation) of the affected shoulder was significantly improved after surgery, and the post-operative VAS, SAS and UCLA scores were also significantly improved. For the Constant-Murley score of shoulder joint function, the total scores and the subscores of pain, daily activities, range of motion and strength test at the last follow-up were all significantly improved. Scapular glenoid notch was observed in patient, which was evaluated as grade 1 on imaging. All the other patients did not develop specific or non-specific complications. CONCLUSION Reverse total shoulder arhroplasty is an appropriate treatment as a revision surgery for failed fixation of proximal humeral fractures. It has shown satisfactory clinical outcomes, accelerating the rehabilitation of shoulder function and improving the quality of life.
Male ; Female ; Humans ; Aged ; Shoulder/surgery* ; Arthroplasty, Replacement, Shoulder/methods* ; Retrospective Studies ; Treatment Outcome ; Quality of Life ; Shoulder Joint/surgery* ; Shoulder Fractures/surgery* ; Humerus/surgery* ; Range of Motion, Articular

OBJECTIVETo explore the effective skills of reconstruction and balance of soft tissue in hemi-shoulder replacement for patients with four-part fracture of the proximal humerus in order to avoid postoperative complications of joint instability and great tubercle displacement.

METHODSFrom June 2002 to June 2006, 25 patients with Neer four-part fracture of the proximal humerus were adopted in the study which included 15 females and 10 males, with the mean age of 66 years (ranged from 56 years to 80 years). They were treated with humeral head replacement and should joint reparation simultaneously by modified operation approach and reconstruction and balance skills of soft tissue.

RESULTSThe mean duration of follow-up was 2.3 years (ranged from 1 to 4.5 years). No infection, nerve damage and prosthesis loosing were found in all cases. Two cases of infra-forward dislocation or subluxation occurred due to affected limb placed on abduction splint postoperatively. One case occurred prosthesis upward displacement due to early active abduction exercise but no complains. Neither joint instability nor displacement and malunion of great tubercle were found in other patients. According to Neer scoring system, 6 cases were rated as excellent, 15 as good and 5 as fair. The good and excellent rate was 84%.

CONCLUSIONIn hemi-shoulder replacement for patients with Neer four-part fracture the modified operation approach and reconstruction and balance of soft tissue skills combined with rational rehabilitation exercise can prevent postoperative shoulder joint instability and displacement and malunion of great tubercle.

Aged ; Aged, 80 and over ; Arthroplasty, Replacement ; methods ; Connective Tissue ; surgery ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Postoperative Complications ; prevention & control ; Shoulder Fractures ; surgery ; Shoulder Joint ; surgery

OBJECTIVESTo evaluate the clinical results of hemiarthroplasty in the treatment of severe proximal humeral fracture, and to analyze the influencing factors.

METHODSForty-two cases with mean age of 63 years old were included. Mean follow-up duration was 29 months (12 - 48 months). Subjective satisfaction, ROM, muscle strength, stability, smoothness of motion were all evaluated. Radiographs of anterio-posterior view and axial view of shoulder were taken. Total-length radiographs of bilateral humerus were taken for 27 cases and CT for 15 cases.

RESULTSWith Constant-Murley score 19 cases (45%) were excellent, 17 cases (40%) good, 6 cases (15%) poor, and the rate of total satisfactory was 85%. Post-operative active ROM, anterior flexion was (100 +/- 32) degrees , external rotation (16 +/- 11) degrees , external rotation and posterior extension to the level of L2.

CONCLUSIONSThe reasons for the poor results include improper restoration of humeral length, over retroversion of prosthesis, poor fixation of tuberosity, malunion, absorption of greater tuberosity and heterotopic ossification.

Arthroplasty, Replacement ; methods ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Shoulder Fractures ; surgery ; Shoulder Joint ; surgery ; Treatment Outcome

Rotator cuff deficient arthritis of the glenohumeral joint, especially cuff tear arthropathy, has proved a challenging clinical entity for orthopaedic surgeons ever since Charles Neer originally detailed the problem in 1983. Understanding has improved regarding the pathophysiology and pathomechanics underlying cuff tear arthropathy. Surgical reconstruction options can lead to excellent outcomes for patients afflicted with these painful and functionally limited shoulders. Humeral hemiarthroplasty and reverse total shoulder arthroplasty have jumped to the forefront in the treatment of cuff tear arthropathy. As studies continue to look at the results of these procedures in cuff tear arthropathy, existing indications and treatment algorithms will be further refined. In this article the history and pathophysiology of cuff tear arthropathy are reviewed. Additionally, the clinical findings and results of surgical reconstruction are discussed.
Arthritis/diagnosis/etiology/*surgery ; Arthroplasty, Replacement/adverse effects/methods ; Humans ; Magnetic Resonance Imaging ; Rotator Cuff/*injuries ; Shoulder Joint/radiography/*surgery ; Tomography, X-Ray Computed

OBJECTIVETo compare the clinical efficacies of humeral head prosthesis and internal fixation in the treatment of comminuted proximal humeral fractures.

METHODSThe clinical data were analyzed for the patients with comminuted proximal humeral fractures undergoing surgeries for humeral head replacement or open reduction plus internal fixation in our hospital between January 2002 and January 2009. Constant scores were used to determine the excellent clinical outcome rates in the two groups, and the operating time, blood loss and postoperative motor scores of the shoulder were compared.

RESULTSForty patients in the humeral head replacement group were evaluated. According to the Constant scores, excellent outcomes were achieved in 16 patients, good outcomes in 18 patients, moderate in 3 patients, and poor in 3 patients, with an excellent outcome rate of 85%. In the 40 cases receiving open reduction plus internal fixation, excellent outcomes were achieved in 11 cases, good in 13 cases, moderate in 8 cases, and poor in 8 cases, with an excellent clinical outcome rate of 60%. Compared with open reduction plus internal fixation, humeral head replacement was associated with shortened operating time, reduced blood loss and better motor function recovery of the shoulder.

CONCLUSIONSReplacement of humeral head prosthesis produces better clinical outcomes than open reduction and internal fixation in patients with comminuted proximal humeral fractures, and can promote the short-term functional recovery of the shoulder with minimal surgical complications.

Aged ; Arthroplasty, Replacement ; Female ; Fracture Fixation, Internal ; methods ; Fracture Healing ; physiology ; Fractures, Comminuted ; etiology ; surgery ; Humans ; Humerus ; surgery ; Joint Prosthesis ; Male ; Middle Aged ; Prosthesis Implantation ; Shoulder Fractures ; surgery